There has been a boom of syphilis cases, including a 180% increase in congenital syphilis cases, despite other STI levels staying stable. Also, the world's largest deep-sea reef stretches for hundreds of miles in near-freezing waters and total darkness, but it’s bustling with life.Syphilis Cases Are Up 80% Since 2018Syphilis is rearing its ugly head again in the United States. A new report on sexually transmitted infections (STIs) from the Centers for Disease Control and Prevention shows a shocking statistic: Cases of syphilis are up by nearly 80% among adults since 2018. Congenital syphilis cases, which occur when an infection is passed from parent to child during pregnancy, are up by more than 180%.Strangely, cases of other STIs have stayed about the same or decreased in the same timeframe. Rachel Feltman, host of “The Weirdest Thing I Learned This Week,” joins Ira to talk about this and other science stories from the week, including the first cases of transmitted Alzheimer’s disease, and why closing the toilet seat doesn’t keep aerosolized viruses from contaminating other bathroom surfaces.Revealing The Largest Deep-Sea Coral Reef In The WorldScientists recently discovered the largest known deep-sea coral reef in the world. It’s called Million Mounds, and it stretches from Miami, Florida, to Charleston, South Carolina, covering around 6.4 million acres of the seafloor.Unlike the colorful reefs found in sunlit tropical waters, this one is mostly made up of a stony coral that’s usually found from about 650 to 3,300 feet underwater—depths where it’s very cold and pitch black.Ira Flatow talks with Dr. Erik Cordes, marine biologist and professor at Temple University in Philadelphia, Pennsylvania, who collaborated on the study. They discuss what makes deep-sea corals different from those found in shallower waters, why it’s important to map them, and what it’s like to visit one in a submarine.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Take a quick moment to think about your surroundings. Tune into your senses, and contemplate what’s happening around you. What do you see, hear, and smell? Now take a moment to imagine: What if you were a bat? How would you experience your environment differently? Maybe you could sense a nearby spider through echolocation, or feel minute changes in air pressure and temperature to know where to fly next. This world of perception is unique to each organism. It’s what scientists call umwelt, from the German word meaning “environment” or “surroundings,” and it is the subject of this month’s SciFri Book Club pick.Science writer, author, and birder Ed Yong returns to talk about how senses both familiar and foreign to us help animals experience their environment, and to tell us what he’s learned in the past year since his book, An Immense World: How Animal Senses Reveal The Hidden Realms Around Us (now available in paperback), was published.The SciFri Book Club read An Immense World together this January, and readers joined Yong and guest host Arielle Duhaime-Ross via a live Zoom Call-in for a conversation on how writing about animals changed his experience in nature, how educators can help students become better connected to the Earth, and how readers are still connecting with his work on the umwelten of the animal kingdom.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

This radio interview is an abbreviated version of the full video interview, available with ASL interpretation on Youtube.Think back to your favorite childhood TV show—was it “Blue’s Clues”? “Little Bear”? “Winnie the Pooh”? Animated TV shows are important for kids because they can teach them to read, draw, spell, and talk. Plus, the ways these shows tell stories and create colorful, fictitious worlds can broaden children’s knowledge and capacity to imagine.But children’s shows aren’t accessible to all deaf children, which means they could miss out on a common learning experience. Among other things, that can set kids back in learning both American Sign Language (ASL) and English language skills during their formative early childhood years.Melissa Malzkuhn is third-generation Deaf and the founder and director of the Motion Light Lab at Gallaudet University in Washington, D.C. Her lab is creating ASL-focused children’s media that is made by and for the Deaf community, using motion capture technology, avatars, animation, and signing storytellers. She talks with guest host Arielle Duhaime-Ross about ASL access in childhood, the science of learning, and how she’s creating “Here Comes Mavo!”—the first animated TV series with signing characters.Transcripts for this segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Over the past few months, there have been reports about a mysterious canine respiratory illness. It’s easy to get a little scared: Some dogs are developing a severe illness that lasts a long time and doesn’t respond to treatment. And in some cases, dogs have died.In the age of social media, it’s hard to know just how widespread this actually is, and how it compares to a more familiar canine illness like kennel cough. Joining guest host Arielle Duhaime-Ross to break down this potential new pathogen are Dr. Deborah Silverstein, professor of critical care medicine at the University of Pennsylvania School of Veterinary Medicine, and Dr. David Needle, a pathologist at the New Hampshire Veterinary Diagnostic Laboratory and a clinical associate professor at the University of New Hampshire.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Irth is a “Yelp-like” app to help expectant parents make informed decisions by exposing bias and racism in healthcare systems. Also, a new video camera system shows the colors of the natural world as different animals see them.An App For People Of Color To Rate Their Birthing ExperiencesFor some patients, finding a good doctor can be as simple as looking up a doctor’s degrees and accolades. But for people who are more likely to experience discrimination in a medical setting—perhaps due to their gender, disability, sexual orientation or race—credentials only tell half the story. So how do you know where to go? And who to trust?One app aims to help Black and brown parents-to-be make informed decisions about where they choose to give birth. Black people who give birth in the United States are far more likely than their white counterparts to experience mistreatment in hospitals, develop complications, or die due to childbirth.Irth allows parents to leave reviews about how their birthing experience went, like: Did doctors and nurses listen to them? Was their pain taken seriously? Did they develop complications that could’ve been prevented?Guest host Arielle Duhaime-Ross talks with Kimberly Seals Allers—journalist, activist, and founder of Irth—about why she founded the app and how it can help people.You can learn more about Irth and download the app on their website.Are Roses Red, And Violets Blue? Depends On Your SpeciesOver the millenia, animal eyes have evolved along different paths, adding or subtracting capabilities as they adapt to specific niches in the world. The result of all that evolution is that a bee, bird, or bull doesn’t see the world the same way you do. There are differences in the spatial resolution different animals can see, in the speed of their visual response, in the depth of focus, and in the way they process color.Dogs, for instance, can’t really see red—their vision is best at seeing things that are blue or yellow. Birds and bees can see into the ultraviolet part of the spectrum, making a flower look quite different from the way humans perceive it.This week, researchers published details of a video camera system that tries to help make sense of the way different animals view color. By combining different cameras, various filters, and a good dose of computer processing, they can simulate what a given video clip might look like to a specific animal species. It’s work that’s of interest to both biologists and filmmakers. Dr. Daniel Hanley, one of the researchers on the project and an assistant professor of biology at George Mason University, joins guest host Arielle Duhaime-Ross to describe the system and its capabilities.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Engineers had to design bespoke tools to open the OSIRIS-REx capsule nearly four months after it arrived back on Earth. Also, prescription rates for ADHD drugs rose by 30% from 2020-2022, with large increases among women and young people.NASA Finally Opens Canister Containing Asteroid SampleNASA’s OSIRIS-REx was the first U.S. mission to retrieve fragments of an asteroid, which arrived in September 2023. There was just one small issue: NASA technicians couldn’t open the capsule, which held space rocks from an asteroid called Bennu. NASA announced this week that they finally managed to open the capsule on January 10. Engineers designed new tools to remove the final two of 35 fasteners, which would not budge.Guest host Arielle Duhaime-Ross talks with Maggie Koerth, science writer and editorial lead for Carbon Plan, about the asteroid capsule and other top science news of the week, including chimpanzees catching human colds, advances toward a cure for autoimmune disorders and honeybee crimes.ADHD Prescription Rates Spiked During The Pandemic–Why?The rate of prescriptions for ADHD medications rose by 30% during the height of the pandemic, from 2020 to 2022. Most of these new prescriptions were given to people between the ages of 20 and 39. And the prescription rate for those assigned female at birth, including women and some trans people, doubled during this time as well, according to a recent study. Prescriptions for anxiety and depression medications did not rise at a similarly high rate during that time.While it’s still not entirely clear what led to this dramatic increase, experts point to several contributing factors: The pandemic changed routines and made lifelong ADHD symptoms more apparent, content creators on social media platforms like TikTok increased awareness of symptoms, and a proliferation of online pharmacies expedited diagnosis and prescriptions for ADHD medications like Adderall.Guest host Arielle Duhaime-Ross speaks with Dr. Julia Schechter, co-director of Duke University’s Center for Girls & Women with ADHD, to make sense of these trends.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Researchers in Michigan modeled a prehistoric land bridge and used AI to predict where caribou–and humans–might have traveled along it. Also, artist Sarah Rosalena uses Indigenous weaving, ceramics, and sculpture practices to create art that challenges tech’s future.Using AI To Help Find Ancient Artifacts In The Great LakesAt the bottom of Lake Huron there’s a ridge that was once above water. It’s called the Alpena Amberley Ridge and goes from northern Michigan to southern Ontario. Nine thousand years ago, people and animals traveled this corridor. But then the lake rose, and signs of life were submerged.Archaeologists were skeptical they’d ever find artifacts from that time. But then John O’Shea, an underwater archaeologist based at the University of Michigan, found something. It was an ancient caribou hunting site. O’Shea realized he needed help finding more. The ridge is about 90 miles long, 9 miles wide and 100 feet underwater.“Underwater research is always like a needle in a haystack,” said O’Shea. “So any clues you can get that help you narrow down and focus … is a real help to us.”That’s where artificial intelligence comes in. He teamed up with computer scientist Bob Reynolds from Wayne State University, one of the premier people creating archaeological simulations. And Reynolds and his students created a simulation with artificially intelligent caribou to help them make predictions.An Artist Combines Indigenous Textiles With Modern TechWhen multidisciplinary artist Sarah Rosalena looks at a loom, she thinks about computer programming. “It’s an extension of your body, being an algorithm,” she says.Rosalena, a Wixárika descendant and assistant professor of art at the University of California Santa Barbara, combines traditional Indigenous craft—weaving, beadmaking, pottery—with new technologies like AI, data visualization, and 3D-printing. And she also works with scientists to make these otherworldly creations come to life. She involved researchers at the NASA Jet Propulsion Lab to make 3D-printed pottery with simulated Martian clay. And she collaborated with the Mount Wilson Observatory to produce intricately beaded tapestries based on early-1900s glass plates captured by the observatory’s telescope, which women mathematicians used to make astronomical calculations.And that’s also a big focus for Rosalena: spotlighting the overlooked contributions women made to computer science and connecting it to how textiles are traditionally thought of as a woman-based craft. When she first started making this kind of art, Rosalena learned that the Jacquard loom—a textile advancement in the 1800s that operated on a binary punch card system which allowed for mass production of intricate designs—inspired computer science pioneer Ada Lovelace when she was developing the first computer program. “[They] have this looped history,” she says. “And when I weave or do beadwork, it’s also recalling that relationship.”But for Rosalena, there is tension and anxiety in her decision to combine new and ancient mediums. “We’re at this point of the technological frontier and that’s actually terrifying for a lot of people, especially for people from my background and my Wixárika background,” she says. “It’s progress for some, but it’s not for all.”Part of Rosalena’s work is anticipating future forms of colonization, especially amid rapid change in our planet’s climate and the rise of AI. “What happens when we bring traditional craft or Indigenous techniques with emerging technology to think about current issues that we are facing? Digital technologies are always chasing after ways that we could simulate our reality, which also produces this way that we could re-envision our reality,” she says.SciFri producer and host of our podcast Universe Of Art D. Peterschmidt sat down with Rosalena to talk about how she approaches her work, why she collaborates with scientists, and how she hopes her art makes people consider today’s technological advancements through an Indigenous lens.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

When Steve Jobs unveiled the Apple Macintosh in January of 1984, the visual user interface, all-in-one design, and mouse-controlled navigation were revolutionary. Design team member Andy Hertzfeld and industry observer Steven Levy look back on the early days of personal computing, and talk about how the Macintosh came to be.Transcripts for each segment are available on sciencefriday.com To stay updated on all things science, sign up for Science Friday's newsletters.

For almost their entire 4.5 billion-year existence, Earth and its moon have been galactic neighbors. And the moon isn’t just Earth’s tiny sidekick—their relationship is more like that of siblings, and they’re even cut from similar cosmic cloth.Without the moon, Earth and its inhabitants wouldn’t be what they are today: The climate would be more extreme, lunar tides wouldn’t have given rise to life on Earth, biological rhythms would be off-beat, and even timekeeping and religion would have evolved differently. The new book Our Moon: How Earth’s Celestial Companion Transformed The Planet, Guided Evolution, And Made Us Who We Are explores how our existence is tied to the moon’s.Ira Flatow and guest host Sophie Bushwick chat with journalist and author Rebecca Boyle about how the moon came to be, how it transformed life on Earth, and how our relationship with it is changing.Transcripts for each segment will be available the week after the show airs on sciencefriday.com To stay updated on all things science, sign up for Science Friday's newsletters.

Researchers continue to test out new ways to use artificial intelligence in medicine.Some research shows that AI is better at reading mammograms than radiologists. AI can predict and diagnose disease by analyzing the retina, and there’s even some evidence that GPT-4 might be helpful in making challenging diagnoses, ones missed by doctors.However, these applications can come with trade-offs in security, privacy, cost, and the potential for AI to make medical mistakes.Ira and guest host Sophie Bushwick talk about the role of AI in medicine and take listener calls with Dr. Eric Topol, founder and director of the Scripps Research Translational Institute and professor of molecular medicine, based in La Jolla, California.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

This week, a research team in China reported that it had successfully cloned a rhesus monkey, which has lived normally for over two years and reached maturity. It marks the first time that a rhesus monkey has been successfully cloned. Rhesus monkeys are used widely in medical research, making the advance potentially useful for medical trials.Cloning of primates in general has been difficult. Six years ago researchers cloned long-tailed macaques using the technique originally used for Dolly the cloned sheep. But an attempt to use that approach to clone a rhesus was unsuccessful, producing an animal that died after 12 hours. In the new work, the research team identified flaws in placental cells of previous cloned embryos. To address those flaws, they replaced the outer trophoblast cells from a developing cloned embryo with ones from an embryo created through an in-vitro fertilization technique—essentially providing cells that would develop into a normal placenta for the cloned embryo.Tim Revell of New Scientist joins Ira to talk about the work and its implications. They’ll also discuss other stories from the week in science, including the discovery of lots of ice buried under Mars’ equator, an AI that’s good at solving high school math challenges, and the discovery of four new species of octopus.Transcripts for each segment will be available the week after the show airs on sciencefriday.com To stay updated on all things science, sign up for Science Friday's newsletters.

In October 2023, an international group of scientists released an impressively detailed cell atlas of the human brain, published in 21 papers in the journals Science, Science Advances and Science Translational Medicine.The human brain has roughly 171 billion cells, which makes it a herculean task to categorize them all. Scientists collected samples from different parts of the brain and have identified 3,000 different types of cells. Each cell contains thousands of genes and each cell type only expresses a small fraction of those. Cataloging cells by their gene expressions, paves the way for scientists to tailor disease treatments to target only the affected cells. This human brain cell atlas is only the first draft, but it could signal a paradigm shift in how we understand and treat neurological diseases.Ira talks with one of the researchers who helped put together the cell atlas, Dr. Ed Lein, senior investigator at the Allen Institute for Brain Science, and takes listener calls.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Brain organoids are grown in a lab using stem cells, and can mimic the functions of different regions of the brain like the cortex, retina, and cerebellum. Though it may sound a bit like science fiction, this technology is increasingly being used to better understand brain disorders and eventually develop better treatments.Ira talks with neuroscientist Dr. Giorgia Quadrato, assistant professor of stem cell biology and regenerative medicine at the University of Southern California, about the state of brain organoid research and her model that mimics the cerebellum.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

In a conversation from March 2023, the maritime archeologist who found the storied wreck discusses the mission and his new book.There are few stories about heroic survival equal to Sir Ernest Shackleton’s Antarctic rescue of his crew, which turned disaster into triumph. In August of 1914, 28 men set sail from England to the South Pole. Led by Shackleton himself, the group hoped to be the first to cross Antarctica by foot. However, their ship, the Endurance, became stuck in ice. It sank to the bottom of the frigid Antarctic waters, leaving most of the men stranded on a cold, desolate ice floe.Shackleton, with five of his crew, set out in a small boat to bring help from hundreds of miles away. Finally, after many months of fighting the cold, frostbite and angry seas, Shackleton was able to rescue all his men with no loss of life.Over the years, there have been many attempts to find the Endurance shipwreck. None were successful until a year ago, when the wreck was located for the first time since it sank back in 1915. Ira is joined by Mensun Bound, maritime archeologist and the director of exploration on the mission that found the Endurance. His new book, The Ship Beneath the Ice: The Discovery of Shackleton’s Endurance, is out now.View more images of Shackleton’s last expedition from the Library of Congress.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

The idea of creatures from another planet is part of our culture, from the warnings of the alien in “The Day the Earth Stood Still,” to the plaintive desire to return home in “E. T. the Extra-Terrestrial,” to the hulking creature of “Nope.” Aliens appear in movies, books, comics, you name it. But are they more than science fiction? And if they were, how would scientists prove it?The government has investigated reports of alien sightings, including in Project Blue Book, which ran from 1947 to 1969. And last summer, congressional hearings into Navy pilots’ sightings of Unidentified Anomalous Phenomena (UAPs) brought the search for intelligent life back into the public eye. But there’s more to the search for alien life than people spotting lights in the sky. Projects such as Breakthrough Listen are surveying the stars for signals. Advanced telescopes such as JWST are enabling us to collect data on the atmospheres of exoplanets, a first step in detecting biosignatures on distant worlds. And astrobiology projects such as the Mars 2020 Perseverance rover mission are looking for signs of ancient life elsewhere in our own solar system.Dr. Adam Frank, a professor of astrophysics at the University of Rochester and author of The Little Book of Aliens, joins hosts Ira Flatow and Kathleen Davis to talk about the evidence for life elsewhere in the universe, and how scientists might go about trying to answer the question of whether we’re alone.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

With this week’s delays to Artemis II and III, astronauts likely won’t walk on the moon until 2026 at the earliest. Also, weight-loss drugs, AI, clean-energy tech and more: digging into MIT Technology Review’s annual list with executive editor Amy Nordrum.NASA Once Again Delays Artemis Crewed Missions To the MoonThis week, NASA announced that it was delaying two of its planned crewed missions to the moon. Artemis II, which was scheduled to launch in November 2024, was pushed to September 2025. And Artemis III, originally planned for late 2025, is now looking at a September 2026 launch date. The Artemis campaign has faced challenges with its lunar landers, spacesuits, life-support systems, and the Orion capsule’s heat shield, according to NASA. When launched, Artemis II will swing around the moon and return to Earth, while Artemis III will land on the south pole of the moon, and will mark the first time humans have walked on the moon since 1972.Joining Ira to talk about this and other top science stories in the news this week is Casey Crownhart, climate reporter at MIT Technology Review. They talk about challenges facing the offshore wind industry, a Hawai‘i coal plant that was replaced by a battery farm, why AI weather forecasting is not ready for primetime, and a new discovery that giant apes went extinct earlier than we thought—and for a different reason.Top Technologies To Watch In 2024The technology world moves so fast, it can be hard to know what to pay attention to. Sometimes it’s helpful for someone to tell you straight up who the big players are, and what technologies really could change the world.Luckily for us, MIT Technology Review compiles an annual list of the 10 breakthrough technologies they say matter most. This year, that list ranges from super-efficient solar panels to weight-loss drugs, and AI in just about everything.Joining guest host Kathleen Davis to discuss this year’s list is Amy Nordrum, executive editor at MIT Technology Review based in Boston, Massachusetts.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

It’s no longer just the realm of science fiction: It’s possible that in our lifetimes, astronauts will go to Mars. NASA is doing a lot of technological preparation for this, but the key to the success of these missions will be the astronauts involved. As Mars space missions will require months or even years on the red planet, the agency wants to better understand how our bodies are affected by time in space.NASA recently launched the Complement of Integrated Protocols for Human Exploration Research, or CIPHER. This is a suite of 14 studies astronauts will undergo on the International Space Station, measuring everything from bone health to brain activity to vision changes.Joining Ira to talk about CIPHER and the hopes for health data collection is Dr. Cherie Oubre, CIPHER project scientist in NASA’s human research program based in Houston, Texas.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

In 2023, a flood of science journalists lost their jobs. At the same time, public trust in science continues to decline.Last year was a tough one for science journalism. National Geographic laid off all of its staff reporters, and Wired laid off 20 people. And the most recent blow came in November, when Popular Science announced it would stop publishing its magazine after a 151-year run, and laid off the majority of its staff.Beyond talented journalists losing their jobs, many people seem to be losing trust in science in general. A recent Pew Research Center survey found that only 57% of Americans think science has a mostly positive effect on society, down considerably since the beginning of the COVID-19 pandemic.Is the waning trust in science reflected in the shrinking of science journalism?Ira talks about the current state of science journalism with Deborah Blum, science journalist, author, publisher of Undark magazine, and director of the Knight Science Journalism Program at Massachusetts Institute of Technology and Sabrina Imbler, author and science reporter for Defector.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Continuing our exploration of the Endangered Species Act (ESA) at its 50th anniversary, we'll look at how it has helped protect a group of at-risk plants: orchids. Eight species of orchid are recognized as endangered under the ESA—and all of the world’s approximately 30,000 species are considered threatened, and entitled to trade restrictions. Ira speaks with Dr. Matthew Pace, orchid scientist and assistant curator of the Steere Herbarium at the New York Botanical Garden, about threats to orchid conservation.And finally, Ira speaks with Dr. Ron Sutherland, chief scientist at the Wildlands Network in Durham, North Carolina. Sutherland has an extensive background in red wolf conservation in the southeastern United States.Red wolves are one of the most endangered mammals in the world, with only an estimated 20 living in the wild and 267 in captivity. They discuss the dramatic swings in federal conservation efforts for red wolves, and why Sutherland isn’t ready to give up on this endangered species.Transcripts for each segment will be available after the show airs on sciencefriday.com.  To stay updated on all things science, sign up for Science Friday's newsletters.

On December 28, 2023, the Endangered Species Act (ESA) turned 50 years old. It was enacted in 1973 with almost unanimous support in Congress, with a goal to save plants and animals from extinction. It’s considered one of the most important environmental policies in US history, and it transformed conservation. It may have even helped save one of your favorite critters, like humpback whales, bald eagles, manatees, and grizzly bears.To mark the ESA’s 50th birthday, we’re looking at how it works, how successful it’s been, and what its future may look like. Ira starts off by talking with Dr. Judy Che-Castaldo, biologist for the US Fish and Wildlife Service’s Branch of Species Status Assessment Science Support.Then, we head to the extinction capital of the world: Hawai‘i. Kāhuli, also known as Hawaiian land snails, live all over the Hawaiian islands. At one point, around 750 species existed, but more than half have gone extinct. Ira talks with two conservationists dedicated to saving the snails: Dr. David Sischo, coordinator of the Hawai‘i Snail Extinction Prevention Program, and Keahi Bustamente, Maui Nui field coordinator for the program.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Look out for a total solar eclipse, more solar flares, and the Parker Solar Probe’s closest approach to the sun. Also, underground hydrogen stores have raised renewable energy hopes, but can the industry overcome the logistical hurdles of distributing it?Solar Activity Flares Up In 2024Look out 2024—this is going to be the sun’s year (for science, at least). There will be a total solar eclipse on April 8, and scientists are seeking volunteers to help them observe the event. Researchers also expect an uptick in solar activity—that means more sunspots and solar flares, which could increase the amount of auroras the Earth experiences and also might disrupt satellites and power systems on the ground. Plus, NASA’s Parker Solar probe is on track to make its closest pass to the sun yet in December, a mere 3.8 million miles from its surface.Umair Irfan, staff writer with Vox, sits down with Ira to talk about these and other science stories from this week, including why greenhouse gas emissions might actually start to fall this year, research showing that apes are able to recognize each other after decades apart, and the discovery of an enzyme that makes your pee yellow.Could Underground Hydrogen Reserves Put Clean Energy Within Reach?In 1987, a crew in the village of Bourakébougou, Mali, was digging for water. After drilling 108 meters deep, they still hadn’t found any, but the resulting borehole produced a steady stream of wind. When a driller lit a cigarette near the hole, the wind ignited, burning the worker. It took weeks for the crew to put out the blue flame, which produced no smoke, and they eventually capped the hole. It remained sealed until 2012 when a local oil and gas company reexamined it and found that the original crew had stumbled upon an underground store of naturally occurring hydrogen. They converted a Ford engine to burn the gas and soon connected it to a generator, providing electricity for the village.Hydrogen has long been touted as a source of renewable energy with the potential to replace fossil fuels to power transportation and factories. When burned, its only output is water—with no carbon emissions—making it extremely attractive as a clean energy source. But producing commercial hydrogen involves splitting water molecules into their hydrogen and oxygen components, an energy-intensive process typically powered by fossil fuels.But splitting water isn’t the only way to get hydrogen: It also occurs naturally in underground reservoirs when water heated by the planet’s mantle mixes with iron-rich rocks. The oil and gas industry hasn’t prioritized the search for these underground stores of hydrogen, but more of them have been found lately, including a potentially massive one in Lorraine, France that was discovered last year.Dr. Geoffrey Ellis, a research geologist at the United States Geological Survey, joins Ira to talk about hydrogen’s potential as a clean fuel, why finding stores of it has been a lower priority than finding oil and natural gas, and the hurdles the industry faces as it aims to expand.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

You may have an idea of how our inventions have changed human history and transformed our relationship with the world. But the reverse can also be true. Hear from materials scientist Ainissa Ramirez, author of The Alchemy of Us: How Humans and Matter Transformed One Another, on the way our values and stories are baked into the things we create—and the lesser-known people who have helped bring them into reality.This event was a part of the SciFri Book Club read for November 2023. Watch the live zoom event on Youtube.Find out more about our book club on our main page. To stay updated on all things science, sign up for Science Friday's newsletters.

What does it take to write a believable kaiju—as well as a charming group of scientists and explorers—onto the page? The SciFri Book Club invited John Scalzi, award-winning author of our August 2023 pick, The Kaiju Preservation Society, to discuss worldbuilding on an alternative Earth; combining ecology, biology and cultural touchpoints to create new giants; and how he used a lifetime of scientific curiosity to write a sci-fi romp in five weeks during a global pandemic.This event was a part of the SciFri Book Club read for August 2023.Watch the live zoom event on Youtube.Find out more about our book club on our main page. To stay updated on all things science, sign up for Science Friday's newsletters.

Few pop culture properties have lasted quite as long as Star Trek. A dozen Star Trek television shows have aired over the last sixty years—not to mention countless movies, novels, and comic books. Science concepts have always been integral to the Star Trek franchise: from warp speed travel to dilithium. But how much does the series accurately depict?Ira speaks with astrophysicist Dr. Erin Macdonald, science consultant for Star Trek about the legacy of the franchise, and how accurate the science is within the series.The transcript for this segment is available at sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

The concept of math has been around for a long time, developing independently in many different cultures. In 1650 BC, the Egyptians were creating math textbooks on papyrus, with multiplication and division tables. Geometry, like the Pythagorean theorem, was used in ancient Greece. And negative numbers were invented in China around 200 BC.Some mathematical concepts are easier to understand than others. One apple plus one apple equals two apples, for example. But when it comes to complex equations, negative numbers, and calculus, concepts become abstract. All that abstraction prompts some to wonder: Is math even real?Mathematician Dr. Eugenia Cheng has heard this question many times over her career. The quandary is the basis of her latest book, Is Math Real?: How Simple Questions Lead Us to Mathematics’ Deepest Truths. She joins Ira from Chicago, Illinois.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Unmasking Owls’ MysteriesDon’t let owls’ cute faces fool you—they’re deadly predators. This duality is part of what makes them so mysterious to humans. And their contradictions don’t end there: Their hoots are among the most distinctive bird sounds, yet owls are nearly silent when gliding through the air to catch their prey.Scientists are learning more about why owls are such good predators—how their hearing and night vision are so sharp, and their flight so silent. With new technology, researchers are also decoding owl communications, increasing our understanding of their social structures and mating habits.John Dankosky talks about all things owls with Jennifer Ackerman, author of the new book, What An Owl Knows: The New Science of the World’s Most Enigmatic Birds.Why It Feels So Good To Eat ChocolateWhen you eat a piece of good chocolate, chances are you don’t just bite down and chew away. There’s a good chance you hold the chocolate in your mouth for a moment, feeling the silkiness as it softens, melting into a molten mass and mixing with your saliva. That gradual phase change process—as fats in the chocolate melt from solid to liquid—is a big part of the chocolate mouthfeel experience.Researchers at Leeds University in the UK have constructed an artificial tongue that doesn’t focus on the taste of a food, but rather its texture, and how that texture changes over time. Using the artificial tongue, they explored the textures of materials that can change phase in the mouth, such as chocolate, butter, and ice cream. They reported their findings in the journal ACS Applied Materials & Interfaces. The researchers found that in dark chocolate, the sensation in the mouth is governed largely by the fat content, as the surface of the chocolate begins to soften. A few moments later, as the chocolate melts completely and mixes with saliva, the fat content of the treat is less important to the mouthfeel experience.Dr. Anwesha Sarkar, an author of the report, joins Ira to talk about the research, the challenge of designing a lower-fat chocolate that might exploit these findings, and the importance of learning about textures to determine why people like—and don’t like—certain foods. Transcripts for each segment are available on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

The editors of this year’s The Best American Science and Nature Writing anthology—and special guest journalists and writers—took to the virtual stage to reflect on their favorite stories from 2023, the biggest news from this year in science, and the future of scientific discovery and journalism.The guests:Carl Zimmer is the author of many science books, including Life’s Edge: The Search of What it Means to Be Alive and She Has Her Mother’s Laugh. He’s also the guest editor of The Best American Science and Nature Writing 2023, and is based in New York, NY.Jaime Green is a science writer and author of The Possibility of Life: Science, Imagination, and Our Quest for Kinship in the Cosmos. She is also the series editor of The Best American Science and Nature Writing 2023, and is based in Connecticut.Marion Renault is a health and science writer based in Grenoble, France. Their essay, A French Village’s Radical Vision of a Good Life with Alzheimer’s, is featured in The Best American Science and Nature Writing 2023.Maryn McKenna is a senior fellow at Emory University’s Center for the Study of Human Health, a former senior writer at Wired, and the author of many books, including Big Chicken, Superbug, and Beating Back the Devil. Her essay, The Provincetown Breakthrough, is featured in The Best American Science and Nature Writing 2023This event was a part of the SciFri Book Club read for December 2023. Watch the live zoom event on Youtube.Find out more about our book club on our main page. To stay updated on all things science, sign up for Science Friday's newsletters.

The Unseen World Of SeaweedsChances are you don’t give much thought to seaweed unless you’re at the beach, or perhaps when you’re considering a dinner menu. But the thousands of seaweed species around the world are a key part of our coastal ecosystems.Seaweeds photosynthesize, provide food and shelter for marine animals, stabilize the coastlines, and even contribute to making your ice cream creamier (through an ingredient called carrageenans, extracted from red seaweeds in the Rhodophyceae family). Increasingly, they’re also being investigated as a source of biofuels and as biological factories, due to their fast-growing nature.Dr. John Bothwell, a phycologist at Durham University in the UK, has written a book in praise of seaweeds. In Seaweeds of the World: A Guide To Every Order, he highlights beautiful, unusual, and important species from each of the three seaweed lineages—green, red, and brown. In this segment, he talks with SciFri’s Charles Bergquist about some of his favorite species, where the seaweeds fit into the web of life, and the importance of seaweeds to the global ecosystem.“Dark Fungi” Species Don’t Get Names. Should They?Scientists have collected DNA samples of thousands of new fungus species over the past several decades. These fragments of fungal DNA are found nearly everywhere—in soil, decomposing logs, water, and even in the air. Mycologists have enough data to place these new species within the fungal family tree, but haven’t collected physical samples of them or been able to grow them in a lab. This means that according to the International Code of Nomenclature for algae, fungi, and plants, these new species cannot receive scientific names.How can you understand a fungus that has no name? SciFri producer Shoshannah Buxbaum talks with fungal taxonomist Dr. David Hibbett, professor of biology at Clark University, about a proposal to give these “dark fungi” scientific names, and why naming living things might help us better protect the Earth’s biodiversity.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

In 1972, pandas arrived at the Smithsonian’s National Zoo in Washington, DC, to huge fanfare. Since then, pandas have been some of the city’s most beloved residents.But for the first time in more than 50 years, DC is panda-free—indefinitely. Mama panda Mei Xiang, papa bear Tian Tian, and their youngest cub Xiao Qi Ji returned to China in November when their leases ended. This is possible because all but a few pandas residing outside of China are on loan through agreements with the country.It’s not just the National Zoo waving its pandas goodbye—the Memphis Zoo’s single panda returned to China in April, and Zoo Atlanta’s pandas will go later in 2024. The news of the pandas’ departure seemed sudden, and it stirred up some questions: Why are the pandas leaving? And why now?The news resurfaced the idea of panda diplomacy—how China introduced pandas to the world by loaning them out to other countries and using them as a symbol of cooperation.SciFri producer Rasha Aridi and freelance journalist Aja Drain look back at 80 years of panda conservation, and how panda diplomacy paved the way for groundbreaking science. And they try to answer the multi-million dollar question: Was it all worth it?This story was produced by Rasha Aridi, with help from Aja Drain. Edited by John Dankosky, with help from D. Peterschmidt and Emma Gometz. All our music and sound design is by D. Peterschmidt.Special thanks to the experts we spoke with: Dr. Chee Meng Tan, Dr. Pierre Comizzoli, Dr. Mel Songer, Michael Brown-Palsgrove, Dr. Rich Bergl, Dr. Jack Liu, Dr. Binbin Li, as well as Dr. E. Elena Songster, environmental historian at Saint Mary’s College of California, and Dr. Carolyn Lin, professor of communication at the University of Connecticut.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

It can be hard to avoid the chime of classic Christmas songs at this time of year. Certain songs may even bring up potent memories, transporting a person to a specific moment in the past, like an afternoon baking cookies as a child, or warming up after playing in the snow.Music, when coupled with emotion, has the ability to create powerful memories. And listening to songs associated with specific memories can almost feel like going back in time.Better understanding how this mechanism works is the work of Assistant Professor Dr. David Clewett and PhD candidate Mason McClay, both in UCLA’s cognitive psychology department. They talk with SciFri producer Kathleen Davis about how this method could be used to improve therapies for PTSD and other memory disorders.Transcripts for this segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

The Top Science News Stories of 2023As the year comes to a close, we wanted to reflect on some of the top science stories of 2023: Scientific breakthroughs that will shape our lives in 2024 and beyond. Research that’s shifted how we understand the universe. And even a story or two that put a smile on our faces.In 2020, the story of the year was the rapid development of COVID-19 vaccines. And while there are now updated versions of those, vaccine development has gone much further. This year we saw approval of two exciting new vaccines, for RSV and malaria.SciFri’s director and senior producer Charles Berquist talks with Sophie Bushwick, incoming senior news editor at New Scientist about this years vaccine breakthroughs and other top science news of the year, including a new generation of weight loss drugs, record high temperatures, completion of the human pangenome, an asteroid sample’s arrival on Earth, ripples in space-time, AI to understand pets’ emotions and T. rex’s new smile.Solar Panels In Historic Cape Cod: Who Decides Where ‘Modern’ Fits?Cape Cod is home to one of the largest historic districts in the country. In the 80 square miles that make up the Old Kings Highway Historic District, the goal of preservationists is to maintain a certain look. So from Sandwich to Orleans, some 45,000 people who live north of Route 6 are required to get approval from local historic committees for solar installations that are visible from a public way. Over the last few decades, many property owners who’ve had their solar plans challenged or denied have described the committees’ decisions as inconsistent, arbitrary, and subjective.But the committees remain steadfast: tourists and locals alike love seeing historic buildings preserved. And solar panels on the front of a house can read like billboards for modernity.“When you start messing with the street view of your house, we have a legal right, on behalf of the public, to make a judgment of the appropriateness of it,” said Jim Wilson, administrative counsel for the Old Kings Highway Regional Historic District Committee, which sets standards and hears appeals of rulings by town committees.The preservationists’ mandate is only to approve solar panels on homes when they present a minimal visual impact on the neighborhood. And that standard is often the source of the argument: what defines a minimum visual impact?Read the full story at sciencefriday.comTranscripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Pennsylvania Drug Laws May Limit Syringe ServicesPennsylvania is one of 12 states that do not implicitly or explicitly authorize syringe services programs through statute or regulation, according to a recent analysis. They are widely considered to be illegal outside of Allegheny County and Philadelphia, where officials have for decades used local health power to grant legal protection to people who operate syringe services programs.These programs have widespread support in the medical community, and expanding them is listed as one of nine “Core Strategies” for the tens of billions of dollars coming to states as part of settlements with drug companies for their role in allegedly fueling the opioid epidemic. A coalition of state attorneys general reached the agreements with the companies.Pennsylvania expects to receive more than $1.6 billion in opioid settlement funds, but the state’s ban makes it significantly harder for the money to directly support expanding syringe services in many places.Some supporters of syringe services programs operate underground. Carla Sofronski, executive director of the Pennsylvania Harm Reduction Network, said she’s not aware of anyone ever facing criminal charges for doing so in the state, but noted the threat hangs over them, and they are taking a “great risk.”Read more at sciencefriday.com.These Romance Novels Represent Black Women In ScienceThe fields of science, technology, engineering, and math (also known as STEM) are not particularly diverse. And despite a gradual uptick in diversity over the last decade, a 2023 report from the National Science Foundation showed that only 24% of people in these industries are Hispanic, Black, or Native American.Dr. Carlotta Berry is working to change that, taking an untraditional approach to encourage people from marginalized backgrounds to enter the sciences. She is, as she puts it, an engineering professor by day and romance novelist by night. Working under the pen name Carlotta Ardell, she writes youth-friendly romance novels featuring Black protagonists who work in STEM fields.SciFri producer and host of the Universe Of Art podcast D. Peterschmidt sat down with Dr. Berry, who is a professor of electrical and computer engineering at the Rose Hulman Institute of Technology, to talk about how she got started on this journey and why she wants to make STEM a little steamier.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Flame Retardant Could Be Made From Discarded Cocoa HusksOn cocoa farms around the world, cocoa beans are pulled from their pods, and the hard husks are discarded, leaving 20 million tons of plant waste to biodegrade and potentially harm future crops. These husks are a source of lignin, a substance that gives plants their rigidity. It’s extremely abundant—but often wasted.A new study published in the journal ACS Sustainable Chemistry and Engineering found that the lignin processed from leftover cocoa pod husks could have a new use as an ingredient in flame retardant.“Lignin is pretty special, as it is very soluble in organic solvents,” said study co-author Dr. Nicholas Westwood, a professor of chemistry and chemical biology at St. Andrews University in Scotland, in an email. This means lignin can be chemically manipulated to create a number of useful substances relatively easily.Because of lignin’s malleability, Westwood and his coauthors were able to add a flame-retardant molecule to the processed substance, and found that the modification increased its already naturally high ability to smother flames.That’s just one possible application. While lignin hasn’t found widespread industrial use yet, scientists hold hope for it to become a greener alternative for fuel and a biodegradable plastic instead of just being leftovers. Processing biomass for food or fuel also produces a massive amount of lignin as a byproduct, which has been converted to materials like activated charcoal or carbon foam. “There are endless possibilities,” Westwood said.​​Joining Ira to talk about lignin and its potential uses is Dr. Rigoberto Advincula, a materials scientist with the Oak Ridge National Laboratory and the University of Tennessee in Knoxville.The Oozy Physics Of OobleckYou may be familiar with a common science demonstration done in classrooms: If you mix cornstarch and water together in the right proportions, you create a gooey material that seems to defy the rules of physics. It flows like a liquid, but when you try to handle it quickly, it stiffens up.This kind of material is called an oobleck, and it’s a type of non-Newtonian fluid, meaning its viscosity changes under pressure or stress. Oobleck-like materials include human-made things like Silly Putty and paint, but are also found in nature; blood and quicksand are both non-Newtonian fluids.For a long time, it’s been hard to prove exactly why these materials act the way they do. But recently, scientists developed a better understanding of the underlying physics. A new study conducted in collaboration between the James Franck Institute and Pritzker School of Molecular Engineering at the University of Chicago was able to demonstrate this mechanism.“The findings from this study are important because they provide direct experimental evidence for one of the mechanisms proposed for strong shear thickening,” says Dr. Heinrich Jaeger, professor of physics at the University of Chicago. “Namely, frictional interactions as the particles in the liquid are sheared into contact.” Jaeger is a co-author of the study, which was led by postdoctoral researcher Dr. Hojin Kim.Jaeger and Kim speculate that a better understanding of non-Newtonian fluids could help in the development of new, advanced materials. The potential ranges from flexible speed bumps to impact-resistant clothing. Jaeger joins Ira to talk about it.Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Between supplying fuel to military bases, planes, and ships, making and using weapons, and clearing land, militaries around the world account for almost 6% of global greenhouse gas emissions.A new report calculated how much the militaries of the United States and the United Kingdom would hypothetically “owe” if they paid for the damage caused by their carbon emissions. The total came up to $111 billion. So what can the military do about its emissions? And what does militarism in the context of the climate crisis look like?Ira talks with two of the report’s authors, Khem Rogaly, a senior researcher at London-based think tank Common Wealth, and Dr. Patrick Bigger, research director at the Climate and Community Project, a progressive climate policy think tank in the US.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Scientists Report Second Highest-Energy Cosmic Ray Ever DetectedAround 30 years ago, scientists in Utah were monitoring the skies for cosmic rays when they detected a surprising particle. It struck the atmosphere with much more energy than they had previously seen—enough energy to cause the researchers to dub it the “Oh My God Particle.”Over the years, a collaboration of researchers in Utah and Japan has detected other powerful rays—about 30 a year—but none that rival the OMG. In 2021, however, a second particle was detected. It was only slightly less powerful than OMG, but still many times more powerful than can be created on Earth. That 2021 particle was named “Amaterasu,” after a sun goddess from the Japanese Shinto religion. The researchers described their observations in a recent issue of the journal Science.The researchers believe the particle must have come from relatively nearby, cosmically speaking, as otherwise it would likely have collided with something in space and lost its energy. However, when they tried to trace the particle back to its origin in space, they were unsuccessful. Both the OMG particle and the new Amaterasu particle seem to have come from empty regions of space, with no violent events or massive structures to create them.Dr. John Matthews, a research professor in physics and astronomy and manager of the Cosmic Ray Physics Program at the University of Utah, joins Ira to talk about cosmic rays, how they’re detected, and the challenges of finding the origin of particles like Amaterasu.These Penguins Are The Masters Of MicrosleepingDo you know that feeling when you’re just so tired that your head starts to droop? Your eyes feel heavy? And you drift off for just a moment … before snapping back to alertness, wondering what just happened.Sleep comes in a variety of snoozes and sizes. We humans are not going to get a full night’s rest by nodding off here and there, but that’s pretty much what some chinstrap penguins do: They doze off more than 10,000 times a day, for just a few seconds at a time. And when you do the math, it can add up to 11 hours of sleep each day, according to a recent study in the journal Science.Ira talks with study author Dr. Paul-Antoine Libourel, a sleep biologist at the Neurosciences Research Center of Lyon in France, about how the penguins do this and the advantages of microsleeps.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Climate Conference Ends, With Few Immediate ResultsThe United Nations climate conference, COP28, ended this week in Dubai. After a lot of arguing over wording, the final agreement from the meeting calls for “transitioning away from fossil fuels in energy systems, in a just, orderly and equitable manner, accelerating action in this critical decade, so as to achieve net zero by 2050 in keeping with the science.” That text is significant in that it is the first time, surprisingly, that fossil fuel use was mentioned by name in a COP agreement. However, many critics of the proceedings point out that even this recognition is too little, too late, with few practical  routes to keep global warming under thresholds considered to be catastrophic.Casey Crownhart, climate reporter at MIT Technology Review, joins Ira to walk through the results of COP28. They also discuss other stories from the week in science, including research into morning sickness, clusters of brain cells that appear to do speech recognition tasks, a first look at asteroid samples from the OSIRIS-REx mission, and the tale of an unusual frog that camouflages itself as poop.Why Are Some People Affected By Seasonal Affective Disorder?As the shortest day of the year approaches, many people might notice their energy levels starting to dip. For some, winter is an especially challenging season. About 5% of adults in the United States experience seasonal affective disorder, also known as SAD. Ira talks with Dr. Kathryn Roecklein, associate professor of psychology at the University of Pittsburgh, about her research into what makes some people more susceptible to seasonal depression than others, and the most effective treatment options. Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Every year birders across the world trek out into the rain, sun, sleet, or wind to participate in the Christmas Bird Count, organized by the National Audubon Society. The massive community science project, in its 124th year, tracks bird population fluctuations from year to year. This year’s count runs from December 14 to January 5.Ira and guest host Flora Lichtman are joined by Ariana Remmel, a birder and freelance journalist based in Little Rock, Arkansas, and Dr. Anuj Ghimire, a birder and wildlife ecologist at North Dakota State University. They give a preview of this year’s Christmas Bird Count and take listener questions.  Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

For thousands of years, humans have been observing and studying the Northern lights, aurora borealis, and their southern hemisphere counterpart, aurora australis. The simplest explanation for how these aurora form has been unchanged for decades: Charged particles, energized by the sun, bounce off the Earth’s protective magnetic field and create flashes of light in the process.But for a long time, scientists have known it was more complicated than that. What exactly gives those incoming particles the energy they need to create the patterns we see? And why are some aurora more dramatic and distinct, while others are subtle and hazier?Aurora researcher Jim Schroeder explains new work published in Nature Communications that suggests that in more vivid aurora, electrons may “surf” waves of energy from space into our atmosphere. The waves, called Alfvén waves, are a side effect of the solar wind warping the Earth’s magnetic field. Schroeder explains the weird physics of our aurora, and what we could learn about other objects in the universe as a result.  Transcript for this segment is available on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

If you ask children what they want to be when they grow up, chances are good that among the answers, you’ll hear “astronaut.” But becoming an astronaut can be more difficult than becoming a veterinarian, firefighter, marine biologist, or some of the other common childhood job aspirations. The odds aren’t good: In 2021, NASA selected 10 astronaut candidates from a pool of over 12,000 applicants. And last year, over 22,000 applications to the European Space Agency resulted in 17 job offers.Dr. Mike Massimino’s application to become a NASA astronaut was rejected several times. However, he persisted in his efforts, and eventually flew twice on the space shuttle, logging over 570 hours in space and over 30 hours spacewalking. On his second trip to orbit, on Atlantis mission STS-125, he participated in the last servicing mission for the Hubble Space Telescope.Massimino joins Ira and guest host Flora Lichtman to talk about his time at NASA. They also discuss lessons he learned at the space agency that he believes can help others achieve their goals, which he has collected in his new book, Moonshot: A Nasa Astronaut’s Guide To Achieving The Impossible.To stay updated on all things science, sign up for Science Friday’s newsletters. Transcripts for each segment will be available after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

In the late 19th century, astronomy was a growing field. At the time, Edward Pickering, the director of the Harvard College Observatory, was working to create a classification system for stars by capturing the light from these distant celestial objects onto photographic glass plates. A team of women assistants and astronomers meticulously maintained and analyzed these delicate negatives. In her new book, The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars, Dava Sobel shares the stories of these “human computers” and how their work helped to advance the field of astronomy and the role of women in science.This team of astronomers included Williamina Fleming, who was once Pickering’s maid but eventually became a supervisor to the group and went on to identify hundreds of variable stars. And Henrietta Swan Leavitt’s observations about the luminosity of stars would shape later ideas about the expanding universe.To stay updated on all things science, sign up for Science Friday’s newsletters. The transcript for this segment is available on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

What Causes Red Wine Headaches? It May Be QuercetinIt’s a common experience: After a glass or two of red wine, relaxation can turn into a pounding headache. This isn’t the same thing as a hangover, as the dreaded red wine headache kicks in between 30 minutes and three hours after imbibing.For years, there have been different theories about what causes this phenomenon. But neither sulfites or tannins have been proven to be the culprit. A new theory published in the journal Scientific Reports posits that quercetin, an antioxidant in grape skins, could create a toxic byproduct that leads to headaches.Dr. Morris Levin is one of the authors on this paper. He’s the director of the Headache Center at the University of California San Francisco Medical Center, and has spent his career treating patients for migraines and other headache experiences. But Levin says there’s not nearly enough funding for headache research as a whole, which leaves a lot of unanswered questions about the origins and meanings of this common ailment.Levin joins guest host Flora Lichtman to discuss red wine headaches, as well as the remaining mysteries of headaches.Worsening Wildfires Are Undoing Air Quality Progress In The USThe Western US has seen both more frequent and more intense wildfires over the past couple decades, leading to lower air quality and increased deaths in the region between 2000 and 2020, according to a new study published in The Lancet Planetary Health journal. While the EPA has made progress in improving air quality in the country, those gains are being undone by smoke from wildfires.The study looked at particulate matter called PM2.5 and a toxic component of it, black carbon. The researchers found that after years of trending downward nationally, the concentration of PM2.5–and the proportion of black carbon within it–began to increase in the West in 2010. This shift was linked to an increase of 670 premature deaths per year in the region.Joining Ira to talk about this and other science news of the week is Rachel Feltman, host of the podcast The Weirdest Thing I Learned This Week. They also discuss a surprise found in the oldest known mosquito fossil, why a national plastic bag recycling program was shut down, and why dwarf planet Eris’ surface is a little squishy.  Transcripts for each segment will be available the week after the show airs on sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters.

Have you ever wondered how the language you speak shapes your understanding of the world around you? And if you speak two or more languages, how might that change the way you process information? Is your brain always thinking in multiple languages or are you toggling back and forth?In many parts of the world, multilingualism is the norm. And in the United States, the number of people who speak a language other than English has doubled in the past two decades, from just about 11% to about 22%.Dr. Viorica Marian has spent her career studying multilingual and bilingual people to better understand how their brains process information differently than their monolingual counterparts.Ira talks with Dr. Viorica Marian, professor of communication sciences and disorders and psychology at Northwestern University, and author of the book The Power of Language: How the Codes We Use to Think, Speak, and Live Transform our Minds in front of a live audience at the Studebaker Theater in Chicago, Illinois, presented with WBEZ and Mindworks. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

As people age, health often becomes a larger focus in their lives—their joints become a little more achy, or their vision less sharp. Some might even be dealing with a new diagnosis.To handle these ailments, doctors might prescribe medications, or diet and lifestyle changes. But there’s often one big factor missing from these conversations: a patient’s social well-being.Sociology researcher Dr. Linda Waite has been tracking the social health of thousands of research participants ranging in age from 50 to over 100, for 15 years. The study is ongoing, and so far she’s found that the social aspects of our lives play a big role in our long-term physical and mental health and well-being as we age.Ira talks with Dr. Linda Waite, a professor of sociology at the University of Chicago and head of the National Social Life, Health & Aging Project in front of a live audience at the Studebaker Theater in Chicago, Illinois, presented with WBEZ and Mindworks.  To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

There’s a long-standing narrative about hunter-gatherers in ancient times: Men ventured out for meat, while women largely stayed closer to home, foraging for plants and tending to children.As with most things, it almost certainly wasn’t that black and white. Recent analyses of physiological and archaeological evidence, published in American Anthropologist, suggest that females hunted just as much as males did during the Paleolithic era. In fact, they were well-suited to long-distance hunting, largely thanks to the benefits of estrogen. Additionally, Neanderthal remains show a sex-equal distribution of bone injuries consistent with hunting. Both males and females were buried with similar items and weapons, suggesting that there was not such a stark division of labor.Ira is joined by Dr. Cara Ocobock, assistant professor in the department of anthropology at the University of Notre Dame, and Dr. Sarah Lacy, biological anthropologist at the University of Delaware, to discuss the details of their findings and why the myth of “Man the Hunter” has persisted for so long.Editor’s note: Sex and gender are distinct descriptors—“sex” pertaining to the biological aspects of the human body (hormones, genitalia, etc.) and “gender” relating more to an individual’s identity within a society. As Dr. Ocobock states in the segment, there are times when a strict sex binary makes sense related to study in a scientific realm, but even within those contexts, there can be large variability. For simplification, these terms are used somewhat interchangeably in the interview.To stay updated on all things science, sign up for Science Friday’s newsletters. Transcripts for each segment will be available after the show airs on sciencefriday.com.

Just about every day there’s a new headline about artificial intelligence. OpenAI Founder and CEO Sam Altman was forced out, and then dramatically returned to his post—all in the span of a week. Then there’s the recent speculation about a revolutionary new model from the company, called Q*, which can solve basic math problems.Beyond the inner workings of AI’s most high profile startup are stories about AI upending just about every part of society—healthcare, entertainment, the military, and the arts. AI is even being touted as a way to help solve the climate crisis.How did we get to this moment? And how worried or excited should we be about the future of AI? No matter how it all shakes out, AI leader and early innovator Dr. Fei-Fei Li argues that humans should be at the center of the conversation and the technology itself.Ira talks with Dr. Fei-Fei Li, founding director of the Institute for Human-Centered AI at Stanford University and author of the book The Worlds I See: Curiosity, Exploration and Discovery At The Dawn of AI, about her path from physics to computer science and the promise and potential of human-centered artificial intelligence.To stay updated on all things science, sign up for Science Friday’s newsletters. Transcripts for each segment will be available after the show airs on sciencefriday.com.

COP28 Host Had Plans to Promote Oil and Gas, Documents ShowThe United Nations Climate Change Conference, COP28, began this week in Dubai. This is an annual event, where leaders and delegates from around the world come together to discuss how to collaboratively reach important milestones for the future of the planet. Goals like slowing the rise of temperatures on Earth will require buy-in from all major players to be successful.But this week, a document leaked that showed the United Arab Emirates planned something at odds with the event: promotion of the oil and gas industries. This has led to increased skepticism of COP and its goals among both critics and attendees.Ira is joined by Tim Revell, deputy US editor of New Scientist, to talk about this story. Plus, how a single bitcoin transaction uses enough water to fill a swimming pool, the way nutrients in soil drive biodiversity, and how amino acids could be formed alongside stars.Researchers Detected Cicada Emergence With Fiber-OpticsIf you were in the eastern United States during the summer of 2021, you likely heard the incessant, whirring buzz caused by the mass emergence of Brood X periodical cicadas. That event, which occurs once every 17 years, brought forth countless cicadas to shed their skins, mate, lay eggs, and die. But it turns out their arrival wasn’t just something that you could witness out the lawn or against your car windshield. The sound of their emergence was something that could be detected by fiber-optic cables.Dr. Sarper Ozharar, a researcher who studies optical networking and sensing at NEC Labs in Princeton, New Jersey, has worked on techniques using fiber-optics to sense the vibrations of things like traffic, sirens, and gunshots. Loud noises produce vibrations that subtly distort optical “backscatter” within a glass fiber-optic cable. Using AI, researchers can decode those vibrations and determine what, and where, a noise may have occurred near the fiber.In the summer of 2021, Ozharar and colleagues detected an unusual frequency signal in their test data. With the help of entomologist Dr. Jessica Ware of the American Museum of Natural History, they eventually determined that it was the whirring of the cicada swarm. Their find is the topic of a report published this week in the Journal of Insect Science.Ozharar joins Ira Flatow to talk about how fiber-optic sensing works, and how an electronics and communications lab ended up publishing in an entomology journal. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

It’s hard to imagine a world without seatbelts or airbags. But five decades ago, it was the norm for car manufacturers to put glamour over safety.“It was stylistic pornography over engineering integrity,” Ralph Nader, prolific consumer advocate and several-time presidential candidate, tells Science Friday.This winter marks the 55th anniversary of Nader’s groundbreaking investigation, “Unsafe at Any Speed,” a damning look at how little auto safety technology was in vehicles back in the 1960s. The book had a massive effect on auto safety in the U.S., setting the groundwork for laws about seatbelts, and the creation of the United States Department of Transportation.Nader joins Ira to discuss what’s happened over 55 years of auto safety advances, and what kind of work is needed to make sure new technology, like self-driving cars, have the safety checks they need before going out on the roads.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

If you want to predict the color of something, you can talk about wavelengths of light. Light with a wavelength of around 460 nanometers is going to look blue. If you want to predict what something sounds like, frequencies can be a guide—a frequency of around 261 Hertz should sound like the musical note middle C. Predicting smells is more difficult. While we know that many sulfur-containing molecules tend to fall somewhere in the ‘rotten egg’ or ‘skunky’ category, predicting other aromas based solely on a chemical structure is hard. Molecules with a similar chemical structure may smell quite different—while two molecules with very different chemical structures can smell the same. This week in the journal Science, researchers describe developing an AI model that,  given the structure of a chemical compound, can roughly predict where it’s likely to fall on a map of odors. For example, is it grassy? Or more meaty? Perhaps floral?Dr. Joel Mainland is one of the authors of that report. He’s a member of the Monell Chemical Senses Center and an adjunct associate professor in the department of neuroscience at the University of Pennsylvania in Philadelphia. Mainland joins Ira to talk about the mystery of odor, and his hope that odor maps like the one developed by the AI model could bring scientists closer to identifying the odor equivalent of the three primary colors—base notes that could be mixed and blended to create all other smells. To stay updated on all things science, sign up for Science Friday’s newsletters. Transcripts for each segment will be available after the show airs on sciencefriday.com.

Few living scientists are as iconic as Dr. Jane Goodall. The legendary primatologist spent decades working with chimpanzees in Tanzania’s Gombe National Park. More recently, Goodall has devoted her time to advocating for conservation, not just in Africa, but worldwide.Ira spoke with Goodall in 2002, after she had published her book The Ten Trusts: What We Must Do to Care for the Animals, and an IMAX film about her work with chimpanzees had just been released. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Ever wondered why your dog’s back-and-forth shaking is so effective at getting you soaked? Or how bugs, birds, and lizards can run across water—but we can’t? Or how about why cockroaches are so darn good at navigating in the dark?Those are just a few of the day-to-day mysteries answered in the new book How to Walk on Water and Climb Up Walls: Animal Movement and the Robots of the Future, by Georgia Tech mathematician David Hu.The book answers questions you probably won’t realize you even had, but they’re questions with serious answers that span the worlds of physics, fluid mechanics, and biology. Throughout the book, Hu demonstrates the extraordinary value day-to-day curiosity brings to science.But, while he explores how science can reveal wonders of the mechanisms in our world, Hu writes how his work has been the target of politicians for so-called “wasteful” science spending. One of the studies under attack, an inquiry into the average length of urination across the animal kingdom, might have had a laughable premise, but eventually led to serious attention by urologists and researchers working on treatments, prostheses, and artificial organs.“The concept of waste is based on the notion of a limited gas tank and a single known destination,” Hu writes. “People expect scientists to save gas as they go from A to B. But the real power of science is to take us to destinations that we have never been to.”To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Saluting Science's Silly Side, VirtuallyIn science, there are some traditions: Every October, the Nobel Prize committee announces the winners of that year’s awards, which are presented in Sweden in December. And every September for the past 33 years, a different committee has awarded the Ig Nobel Prizes in Cambridge, Massachusetts. And every year, on the day after Thanksgiving, Science Friday plays highlights from the awards ceremony. The Ig Nobel awards are a salute to achievements that, in the words of the organizers, “make people laugh, then think.” They are presented by the editors of the science humor magazine Annals of Improbable Research to 10 lucky(?) winners for unusual achievements in science, medicine, and other fields. This year’s ceremony was held virtually, with a webcast taking the place of the traditional raucous ceremony in Harvard’s Sanders Theater. However, it still contained many elements of the in-person Igs, from flying paper airplanes to the participation of real Nobel Laureates in the ceremony. This year’s awards included prizes for explaining why many scientists like to lick rocks,  for re-animating dead spiders to use as mechanical gripping tools, and for using cadavers to explore whether there is an equal number of hairs in each of a person’s two nostrils. SciFri producer Charles Bergquist joins Ira to discuss highlights from this year’s ceremony.Stop Flushing Your Health Data Down The ToiletYou could be flushing important information about your health right down the toilet—quite literally. Pee and poop can tell you a lot about your health, so what if your waste…didn’t go to waste? What if, instead, it could tell you more about your health? Like number one, it can catch a condition like diabetes early. Or number two, check out what’s going on in your gut microbiome.That’s the goal of the smart toilet—a device that gets all up in your business to tell you more about your health. Ira talks with the inventor of the PH Smart Toilet, Dr. Seung-min Park, instructor of urology at Stanford’s School of Medicine in California, about how the toilet works, how it can be used to catch diseases early on, and the ethical implications of such a device.To stay updated on all things science, sign up for Science Friday’s newsletters. Transcripts for each segment will be available after the show airs on sciencefriday.com.

Reporter Ashley Ahearn bought a wild horse from the federal government for $125. Also, with opera and visual art, an exhibit looks at modern genetic engineering of pigs.The Captivating Story Of The West’s Wild HorsesWild mustangs are an icon of the American West, conjuring a romantic vision of horses galloping free on an open prairie. But in reality, the Bureau of Land Management (BLM) says the sensitive Western ecosystem can’t handle the existing population of horses.There are about 80,000 wild horses in the American West, a number that grows about 10-20% each year. The BLM says the fragile, arid rangelands the horses occupy can only support a third of that number before they overgraze habitats critical for other species. This has led to controversial roundups to get wild horses off the open range.Science and environment reporter Ashley Ahearn dove deep into the history, symbolism, and ecological impact of the West’s mustangs for the new podcast Mustang. She even adopted a wild horse, named Boo, from the federal government for $125. Ashley speaks with guest host Flora Lichtman about her boots-on-the-ground reporting, and what she learned from how tribal nations manage mustangs.An Artist Explores The History Of Humans Genetically Modifying PigsOver 100,000 people are waiting for organ donations in the United States. Many will likely never receive one, since there are so few available. So scientists are turning to pigs for potential alternatives. Their organs are remarkably similar to ours, and scientists are now using CRISPR to modify pigs’ DNA to improve transplantation outcomes. But although the field has shown major advances in the last decade, the technique isn’t ready yet. Recently, a patient who received a modified pig heart died six weeks after the surgery.Artist Heather Dewey-Hagborg was intrigued by these recent advances, and looked into humanity’s history of modifying the pig over thousands of years for her new gallery exhibit, Hybrid: an Interspecies Opera. For the work, she interviewed scientists and archaeologists and even filmed in a lab that’s experimenting with genetically modifying pigs to create more human-compatible organs.In the resulting documentary, which plays in the exhibit, the words from the scientists she interviewed are transposed into an opera composed by musician Bethany Barrett. Visitors can also find 3D-printed clay pig statues and a timeline of how humans have transformed pigs over ten millennia, thanks to selective breeding.Dewey-Hagborg sat down with SciFri producer D. Peterschmidt to talk about how the exhibit came together, and how CRISPR could further transform pigs and our relationship to them. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Moon Rocks Collected In 1972 Reveal New SecretsIt’s hard to imagine, but the moon we all know and love hasn’t always been in the sky. Like all of us, the moon has an age. Until recently, our lunar neighbor has been estimated to be about 4 billion years old.But new research on lunar crystals from the Apollo 17 mission has helped researchers pinpoint a more specific age for the moon—and it’s about 40 million years older than previously thought.That difference may sound like a drop in the bucket given the time scales, but lead study author Dr. Jennika Greer says this is a big deal, because it tells us more about what the solar system was like in its earlier years. Greer, a postdoctoral researcher at the University of Glasgow in Scotland, joins guest host Flora Lichtman to talk about her methods and why the early universe was so fascinating.The Science Behind Your Unraveling SweatersIt’s sweater season once again, but you may have noticed that some of your newer sweaters aren’t standing the test of time. Perhaps they are pilling, unraveling, or losing their shape. But if you look at sweaters from the ‘80s or ‘90s, they may still look brand new. Last month, an article by Amanda Mull in the Atlantic about declining sweater quality made the rounds online, and we wanted to know more.What, scientifically, went wrong in sweaters? And why are sweaters so bad now?Guest host Flora Lichtman unravels the science of sweaters with Dr. Imran Islam, knit expert and assistant professor at the Fashion Institute of Technology in New York City. They chat about the fibers that make up sweaters, what physics has to do with how long they last, and what to look for when purchasing knitwear.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Gift-giving season is upon us once again! And if you’re not sure what to get the kids in your life, we’re here to help. Many new STEM books for kids and young adults came out this year, and we asked a few experts to tell us about their favorites from 2023.Joining guest host Flora Lichtman to offer listeners their recommendations for the best kids’ science books of the year are Mahnaz Dar, young readers’ editor at Kirkus Reviews, based in New York, New York, and Jennifer Swanson, children’s book author and cohost of the podcast Solve It! for Kids, based in Jacksonville, Florida.You can download a printable list of our guests’ recommendations to take with you on your shopping trip.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Over the last year, we’ve heard more and more about AI’s potential to transform medicine—how it can help doctors read scans, analyze health data, and even develop personalized drugs.But the AI boom has set off alarm bells for some healthcare providers. Guest host Flora Lichtman talks with two scientists who wondered whether these models were perpetuating harmful, debunked, racist ideas in medicine.  To investigate, they put four AI-powered chatbots like ChatGPT and Google’s Bard to the test to see how they answered some questions about race and medicine. They entered queries like “Tell me about skin thickness differences between Black and white skin” and “What is the difference in pain threshold between Black and white patients?” They then scored the chatbots’ responses and found that several perpetuated racist, incorrect information. They published their results in the journal npj Digital Medicine.Flora talks with Dr. Jenna Lester, a dermatologist at UC San Francisco and the director of the Skin of Color Program, and Dr. Roxana Daneshjou, a dermatologist and assistant professor of biomedical data science at Stanford School of Medicine.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Scientists observing the exoplanet WASP-107b with the James Webb Space Telescope say that the planet has clouds of sand high in its atmosphere. The scientists detected water vapor, sulfur dioxide, and silicate sand clouds in the atmosphere of the planet, which is about the mass of Neptune but the size of Jupiter—stats that caused astronomers to describe it as “fluffy.” Science journalist Swapna Krishna joins guest host Flora Lichtman for a look at the planet.They also discuss the tense seismic situation on the Reykjanes Peninsula in Iceland.    Starting in late October, earthquakes have been occurring there with increasing frequency, with hundreds of earthquakes detected over a recent 24-hour period. The quakes are due to underground magma flowing into the area and straining the earth’s crust. Measurements have also spotted an increasing concentration of sulfur dioxide gas in the area—which could point to an impending volcanic eruption. The Icelandic Meteorological Office said that there was significant likelihood of a volcanic eruption in the coming days.Flora and Swapna also discuss other stories from the week in science, including a growing discrepancy in life expectancy between US men and women, a 3D printed robot hand with working tendons, efforts to control the spread of a drug lord’s escaped hippos in Colombia, and the tale of a tool bag—lost in space.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Do you ever wonder about the science behind making that perfect holiday meal? A lot of factors determine if a turkey gets golden, mashed potatoes turn fluffy, or a pie gets that crisp crust.As the weather gets cooler and the holidays approach, chef Dan Souza from Cook’s Illustrated and America’s Test Kitchen joins Ira to answer listener questions about the science behind holiday cooking.Ready for even more cooking science? Listen to a past episode about an oft-overlooked protein source—complete with the Science Friday staff’s favorite recipes. Plus, learn about six foods that might fill our plate in a warming climate. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Perhaps you’ve marveled at the engineering feats of the Golden Gate Bridge or the Hoover Dam. Maybe you’ve thought about how many train tracks run in and out of Grand Central Station. But it’s sometimes easy to forget just how important well-functioning infrastructure is in our day-to-day lives. Flip a light switch, and the light comes on. Wash a load of laundry and your clothes come out clean and fresh. Order pretty much anything on Amazon and it arrives two days later. It can be kind of boring. And that’s the good news. We like our infrastructure to be boring—that means it’s running well. Ira talks with Dr. Deb Chachra, author of the new book How Infrastructure Works: Inside the Systems that Shape Our World and professor of engineering at the Olin College of Engineering, about the role of infrastructure in our lives. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

It’s a wonderful time of the year: squash, pumpkin, and gourd season. But how do those giant, award-winning pumpkins grow so big? And what’s the difference between a gourd and a squash? Ira talks with Dr. Chris Hernandez, director of the University of New Hampshire’s squash, pumpkin, and melon breeding program to explore all things winter squash and answer listener questions.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

One year ago, OpenAI released ChatGPT, a generative AI chatbot that can generate shockingly convincing text. Since then, it has become a center of gravity in the tech industry, as software companies race to integrate the new tech into their products. It’s also sparked concern in the education world, with teachers and parents fearing how students may use it to cheat, and whether it will keep young people from learning writing skills.So what might adjusting to this new technology look like, one year in? Ira sits down with Dr. Gwen Tarbox, professor of English and the director of the WMUx Office of Faculty Development at Western Michigan University, who talks about her efforts implementing AI at her university and teaching both students and faculty ways to use it responsibly.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A new ESA telescope could help us understand how dark matter and dark energy influence the structure of the universe. Also, using both JWST and the Chandra Observatory, astronomers discover the oldest known black hole.Euclid Telescope’s First Images UnveiledThis week, the European Space Agency unveiled the Euclid space telescope’s first full-color images of the cosmos. The telescope has a wide field of view and is designed to take images of large swaths of the sky in both visible and infrared light. The telescope’s designers hope that they will be able to create a detailed 3D map of the cosmos over the next six years and, with that map, begin to sort out the influences of dark matter and dark energy on the basic structure of the universe.Sophie Bushwick, technology editor at Scientific American, joins Ira to talk about the first images from the Euclid telescope and other stories from the week in science. They’ll try to explain the recent conversation about ultraprocessed foods and discuss steps toward regulating AI coming from the Biden administration and a host of other countries; a move to rename some North American birds; and the tale of a fish that uses electrolocation and some shimmies to get a 3D map of its environment.Not Just Dying Stars: A Black Hole That Came From GasThis week, astronomers confirmed that they had found the oldest known black hole, thanks to the James Webb Space Telescope (JWST) and the Chandra X-ray Observatory. The supermassive black hole formed when the universe was still a toddler, just 470 million years after the Big Bang. But its age isn’t the only thing that makes it unusual.Astronomers long thought that the only way a black hole could form was through the collapse of a star. But this week’s discovery confirms a theory that some black holes at this early stage in the universe formed from the condensation of clouds of gas. The theory purports that such black holes would produce superheated x-ray-emitting gas. Now, data from JWST and Chandra have helped confirm these x-ray signals from the newly discovered black hole. The findings are available via preprint and have been published in the journal Nature Astronomy.Ira sits down with Dr. Priyamvada Natarajan, a professor of astronomy and physics at Yale who helped develop this theory, to talk about how these unique black holes change our understanding of the early universe.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com. 

Over 99% of a human cell is made up of just five elements: carbon, hydrogen, oxygen, nitrogen, and phosphorus. That same elemental mix exists, with minor variations, in every other living thing on Earth.In his new book, Elemental: How Five Elements Changed Earth’s Past and Will Shape Our Future, author Stephen Porder writes about how these building blocks, which he calls “life’s formula,” tell the story of life on our planet.It’s a story of adaptation, and also catastrophic change—from the time cyanobacteria started flooding the atmosphere with oxygen, to when a boom in land plants sucked enough carbon dioxide out of the atmosphere to spark a period of extreme cooling and global glaciation.Ira talks with Porder, who is associate provost for sustainability and professor of ecology, evolution, and organismal biology at Brown University as well as co-founder of the radio show Possibly, about what early geochemistry can tell us about life on Earth, and what that might mean for the planet’s future. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Climate Change Exhibit Asks ‘What If We Get It Right?’Dr. Ayana Elizabeth Johnson, a marine biologist and co-founder of the nonprofit Urban Ocean Lab, thinks a lot about the possible futures of our climate. Not just one ideal climate future, but a range of futures that could be better if we make some changes.She’s helped steer environmental policy, written books and articles on climate action, and co-hosted the podcast How To Save A Planet. And now she’s working with artists who are offering their own creative visions for how we could build a more sustainable society.The effort has culminated in Climate Futurism, a new exhibit Dr. Johnson curated at Pioneer Works, a museum and performing arts space in Brooklyn, New York. And one of the central questions it asks the viewer is, what if we get it right?SciFri producer D. Peterschmidt visited the exhibit and spoke to Dr. Johnson and one of the three featured artists, Erica Deeman, about food justice, reconnecting with nature, and why the exhibit is called Climate Futurism.Climate Futurism features new art from Erica Deeman, Denice Frohman, and Olalekan Jeyifous. It runs until December 10, 2023.How To Save Oregon’s Salmon? Maybe With A Giant Vacuum.To free salmon stuck behind dams in Oregon’s Willamette River Valley, here’s what the U.S. Army Corps of Engineers has in mind:Build a floating vacuum the size of a football field with enough pumps to suck up a small river. Capture tiny young salmon in the vacuum’s mouth and flush them into massive storage tanks. Then load the fish onto trucks, drive them downstream and dump them back into the water. An enormous fish collector like this costs up to $450 million, and nothing of its scale has ever been tested.The fish collectors are the biggest element of the Army Corps’ $1.9 billion plan to keep the salmon from going extinct.The Corps says its devices will work. A cheaper alternative — halting dam operations so fish can pass — would create widespread harm to hydroelectric customers, boaters and farmers, the agency contends.“Bottom line, we think what we have proposed will support sustainable, healthy fish populations over time,” Liza Wells, the deputy engineer for the Corps’ Portland district, said in a statement.But reporting by Oregon Public Broadcasting and ProPublica casts doubt on the Corps’ assertions.Read more on sciencefriday.com.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

When Tamiko Rafeek admitted herself to the hospital a few years ago, she asked for an interpreter. “I was feeling very, very sick that day,” she recalled. Rafeek is deaf, and the Americans with Disabilities Act mandates that deaf patients receive interpreter assistance when requested. But, like over 50% of deaf patients in healthcare settings in the United States, she didn’t receive adequate interpretation.“It felt like the whole world was crashing in,” Rafeek said. “They kept taking my blood pressure and taking all these tests. And no one let me know why.” At one point, a nurse asked Rafeek if her eight year-old daughter, who can hear, could sign for her mother. Rafeek thought that was inappropriate. “I said, no, she’s too young. She’s my daughter, she shouldn’t be interpreting for me.”It wasn’t until two days later, when Rafeek left the hospital, that she learned from her discharge papers that she’d been diagnosed with Type 2 diabetes. To her frustration, she didn’t receive guidance on how to approach care for the diagnosis.Unfortunately, Rafeek’s situation isn’t uncommon. Healthcare workers are “definitely not educated to the point where they know how to handle working with the deaf community,” said Dr. Michelle Litchman, medical director of intensive diabetes education and support program at the University of Utah. Litchman is a CODA (a child of deaf adults) and knows all too well how often deaf patients don’t receive the assistance they are legally mandated to receive.Years ago, her deaf aunt was admitted to the hospital for an infection. She didn’t receive an interpreter, and was signing that she couldn’t breathe. But the staff did not provide her with adequate care. She later died in the hospital. “We just know that it could’ve been prevented,” Litchman said.In 2022, University of Utah Health and Litchman partnered with the advocacy group Deaf Diabetes Can Together to create the hospital’s Deaf Community Advisory Board. The board, made up of Rafeek and other deaf patients, advised the hospital on how it could improve care for its patients with diabetes, a condition deaf people are twice as likely to have. Litchman plans to expand this model for other marginalized groups, including rural and Pacific Islander patients.Ira Flatow sat down with Rafeek and Dr. Litchman to talk about their experiences, how they want to expand the community advisory board model, why there’s a lack of interpreters in the US, and how healthcare systems can better care for patients.Want to learn more and participate? Visit sciencefriday.com. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

This week holds anniversaries for two important milestones in nuclear warfare. On November 1, 1952, the United States detonated a massive hydrogen bomb in the Marshall Islands. The new weapon vaporized a whole island, leaving behind a mile-wide crater. That bomb was around 700 times more powerful than the one dropped on Hiroshima seven years prior, and it renewed fears of nuclear annihilation, which would grip the world for generations to come.Three decades later, on October 30, 1983, millions of Americans flipped open the Sunday paper to find a shadowy, apocalyptic photo with the words: “Would nuclear war be the end of the world?”Legendary scientist Dr. Carl Sagan, writing for Parade Magazine, introduced the world to “nuclear winter,” the terrifying climate changes that might be brought on by nuclear war.Sagan conducted some of the first research on nuclear winter, and he spent years warning politicians, world leaders, and the general public about it. Today, with thousands of nuclear weapons still in existence, the risk of nuclear winter isn’t zero.Ira talks with another pioneer in nuclear winter research, Dr. Alan Robock, a climate scientist and distinguished professor at Rutgers University, about the science of nuclear winter, how fear of those consequences shaped policies, and what’s happening with the world’s nuclear arsenal now.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

If given final approval by the FDA, this sickle-cell treatment would be the first to use gene-editing CRISPR technology on humans. Also, gene variants inherited from Neanderthals can impact pain tolerance in modern humans.  FDA Panel Clears Way For CRISPR-Based Sickle Cell TreatmentAn FDA committee cleared the way for a revolutionary cure for sickle cell disease this week. If given final approval, the treatment would be the first to use CRISPR gene editing in humans. Sickle cell disease is caused by a genetic mutation that causes blood cells to develop into crescent or “sickle” shapes. The extremely painful and often deadly disease disproportionately affects Black and African American people.Ira talks with Vox staff writer Umair Irfan about the new sickle cell treatment and other top science news of the week, including the link between the auto worker strike and a clean energy transition; new evidence about the moon’s origin; and why starfish don’t have arms. Your Pain Tolerance May Have Been Passed Down from NeanderthalsThere’s a little bit of Neanderthal in most of us. Neanderthals and Homo sapiens had a long history of intermingling, before the former went extinct about 40,000 years ago. That mixing means most modern humans have some amount of Neanderthal DNA—and it accounts for up to 3% of the genome in some people.While these genetic remnants don’t have much impact on our day-to-day lives, they may be responsible for one surprising effect: pain tolerance. Recent research shows that people with Neanderthal variants in the gene SCN9A have a lower pain tolerance than people without the gene.This isn’t the only Neanderthal remnant that’s been passed down. A study from earlier this year pinpointed a certain genome region that impacts nose shape. Taller, wider noses were passed down from our Neanderthal ancestors who lived in colder climates. A larger nose warmed air before it hit the sensitive lungs.Ira speaks with Dr. Kaustubh Adhikari, assistant professor of statistics at the Open University in the United Kingdom, who worked on both of these studies.  To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com. 

When you think of poisons, you might think of chemicals like cyanide, arsenic, or the deadly concoction left out for rats. But have you thought of acorns? What about the cup of coffee you had this morning? Or the mums growing in your window box? Toxicity is all in the eye—or bloodstream—of the beholder.A new book describes the story of nature’s endless array of toxins, and how they shaped life on earth, including ours.Guest host Flora Lichtman talks with Dr. Noah Whiteman, evolutionary biologist at University of California, Berkeley and the author of Most Delicious Poison: The Story of Nature’s Toxins – from Spices to Vices. They chat about the poisons that fill our pantries and gardens, and what our use and abuse of these substances tells us about ourselves.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Content warning: This interview includes discussion of miscarriage and pregnancy loss, and may be triggering for some listeners.The placenta is an incredible body part. It’s the only organ grown temporarily, created during pregnancy and discarded after birth. It has the enormous job of supporting the growth of a fetus, protecting it from infection and inflammation. When something goes wrong with the placenta, it can result in the loss of a baby.For something that can be so devastating to expectant parents, miscarriages are incredibly normal. Of the 5 million pregnancies each year in the United States, about 1 million end in miscarriage, categorized as a loss before 20 weeks of gestation. About 20,000 pregnancies end in stillbirth during the later stages of gestation.Often, after a pregnancy loss, doctors tell parents that the cause is unexplained. This can lead to feelings of failure and guilt, even though pregnancy loss is almost always out of a person’s control.Dr. Harvey Kliman, director of the Yale School of Medicine’s Reproductive and Placental Research Unit, has dedicated his career to better understanding the placenta and its relationship to pregnancy loss. Dr. Kliman and his team recently analyzed 1,256 placentas that resulted in pregnancy loss. They learned that 90% of these losses could be explained by conditions such as a small or misshapen placenta.Dr. Kliman joins guest host Flora Lichtman to talk about his research, and the importance of studying the placenta as a way to better understand what leads to miscarriage and stillbirth.

Twenty years ago, scientists found that phenylephrine, listed as a decongestant in many cold medicines, didn’t work. What can you use instead? In September, an advisory committee for the Food and Drug Administration unanimously confirmed that phenylephrine—a common ingredient in cold medicines, including some types of Mucinex and Robitussin—doesn’t work.For many physicians, pharmacists, and cold-sufferers, this came as no surprise. Phenylephrine’s ineffectiveness had been an open secret in the healthcare community for decades.In 2005, Dr. Randy Hatton, clinical professor at the Pharmaceutical Outcomes and Policy Department at the University of Florida, managed the University of Florida Drug Information and Pharmacy Resource Center hotline. He often received calls from pharmacists reporting that phenylephrine-based drugs had no effect on improving colds.He came across research from Dr. Leslie Hendeles, professor emeritus of the College of Pharmacy, also at the University of Florida, from a decade prior. Dr. Hendeles had also found that the substance was ineffective. They partnered up and petitioned the FDA to publicly confirm their finding. Their collaboration was the first step toward the FDA’s recent announcement.But despite the announcement, the removal of these drugs from shelves is not guaranteed. Pharmaceutical companies are appealing the FDA’s decision, and are trying to stall an official declaration that prohibits their sale.Guest host Flora Lichtman talks with Dr. Hatton and Dr. Hendeles about the long road to the FDA’s announcement.They discuss how their research proved phenylephrine’s ineffectiveness, and which drugs people can turn to instead as cold season approaches.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

There’s a name that’s hard to escape these days, particularly if you’re in the technology world—Elon Musk. He’s involved with Tesla electric cars, home solar and battery installations, SpaceX rockets, Starlink satellites, and the company that once was known as Twitter. Woven through his array of enterprises is a mix of technical savvy, confident ego, and sometimes impulsive decision-making.Biographer Walter Isaacson has tried to sort through the competing influences behind the entrepreneur and his mercurial behavior in a recent book titled simply Elon Musk. He joins Ira to talk about the business magnate’s origins, his management style, and the incessant appetite for risk and drama that drives his successes—and, sometimes, his dramatic failures. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

RSV has reached epidemic levels in the southern US. Also, beech leaf disease is spreading rapidly in Massachusetts.RSV Drug For Infants In Short SupplyRespiratory syncytial virus, or RSV, is a common illness that—for most—looks like a common cold. But for infants, it can be an intense illness, leading to hospitalization. That’s why it was a relief for parents and physicians when an immunization drug for all infants was approved in July.However, it’s become clear the demand for the drug is greater than the supply. This week, the CDC issued an alert about the drug’s limited availability, and recommended that only infants under 6 months and those with underlying health conditions receive it until further notice. An RSV spike in the southern US has reached seasonal epidemic levels, a sign that transmission will likely climb in other areas soon.Katherine J. Wu, science writer for The Atlantic, joins guest host Flora Lichtman to chat about this story as well as mouse mummies in the Andes, Hurricane Otis defying forecasts, a secret benefit of “Asian glow,” and other big news from the week.Beech Leaf Disease Is Spreading Rapidly in MassachusettsA new tree disease has spread in forests in Massachusetts, joining invasive pests and climate change as top priorities for foresters to address.The state has found beech leaf disease in more than 90 communities since it was first discovered in the state in 2020.“Lately this has been one of our biggest concerns and my team devotes a lot of time to it. We do expect to see a lot of long-term impact and trees lost from it,” said Nicole Keleher, forest health program director at the state Department of Conservation and Recreation.Beech leaf disease is caused by an unusual parasite: a nematode, which is a microscopic roundworm, that infects the leaves and buds. Researchers believe that it may be spread by birds, insects and wind. This makes it more difficult to treat than visible insects like the emerald ash borer that can be somewhat contained by asking people not to transport wood between forests, according to Keleher.Infected leaves can develop dark patches or stripes, and often will curl up. The infection causes the tree’s leaves to fall off and can eventually starve the tree, which can die within a few years.Read the rest at sciencefriday.com.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

In a conversation from 2019, bestselling author Robin Wall Kimmerer discusses the role of ceremony in our lives, and how to celebrate reciprocal relationships with the natural world.Dr. Robin Wall Kimmerer’s book, Braiding Sweetgrass: Indigenous Wisdom, Scientific Knowledge and the Teachings of Plants, was first published nearly a decade ago—but in 2020, the book made the New York Times best-seller lists, propelled mainly by word of mouth. The book explores the lessons and gifts that the natural world, especially plants, have to offer to people. Kimmerer writes that improving our relationship with nature requires the acknowledgment and celebration of a reciprocal relationship with the rest of the living world. “I think we can care better for one another, for the land, and in fact we can do better science when we consider all of these streams of evidence, and assumptions, about the living world,” says Kimmerer.Kimmerer is a member of the Citizen Potawatomi Nation, and the founder and director of the Center for Native Peoples and the Environment at the SUNY College of Environmental Science and Forestry. In this SciFri Book Club discussion, recorded before a live Zoom audience, she discusses the book, the role of ceremony in our lives, and the challenge of addressing ecological issues such as exotic species within a reciprocal framework.This segment, originally from 2022, was re-aired this week.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Last week, NASA’s Psyche spacecraft launched successfully from the Kennedy Space Center. It’s now on a six-year trip to an asteroid, also called Psyche, located in the solar system’s main asteroid belt between Mars and Jupiter. Unlike previously studied asteroids, it’s not composed mostly of rock or ice. The Psyche spacecraft's target is largely made of metal, thought to be around 60% iron and nickel. The mission won’t actually land on the asteroid—all of its observations will happen from orbit, and will involve imaging, spectroscopy, and magnetometer studies.Scientists aren’t sure if the asteroid is a proto-planetary core, or something else entirely.  They’re hoping that studying the metal-rich asteroid might help teach them about how planets form. Some researchers are also interested in learning what 16 Psyche might be able to teach them about the possibility of future space mining operations—though this particular space object is too far away and too impractical to attempt any kind of sample return, let alone its retrieval. (Plus, suddenly selling the amount of metal an entire astroid holds would completely disrupt the global market, making it almost worthless.)Dr. Lindy Elkins-Tanton, the principal investigator for the Psyche mission and vice president for Arizona State University’s Interplanetary Initiative, joins guest host Swapna Krishna to talk about the mission and its goals.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Research shows some rapidly evolving trout are altering Wyoming's aquatic ecosystems. Plus, paleontologists pieced together a level of apex predators with no modern equivalent. In Wyoming’s Mountain Lakes, Stocked Trout Are Evolving QuicklyAnglers across the West love to fish in high, alpine lakes, and Wyoming’s Wind River Range is nearly unbeatable for this experience. Around this time of year, frost covers the tips of trees at sunrise, and there’s plenty of room along the lonesome blue waters above 10,000 feet.Those who do make the trek—which usually takes more than 15 miles of hiking—are greeted by hungry golden, brook or cutthroat trout looking to fatten up for the winter. They’ll take almost any fly, from a yellow foam grasshopper, to a Parachute Adams to a tiny ant. And the fish are often big, colorful and photogenic.But as untamed, historic and relaxing as a day on the water feels, it’s anything but natural. New research is shedding light on how the history of fish stocking has impacted alpine lake ecosystems in the Wind Rivers. In many cases, the genetics of trout have evolved rapidly, allowing them to survive in harsh mountain environments.Read the rest at sciencefriday.com. Hyper-Apex Predators: Colombian Fossils Reveal Big Reptilians Atop Ancient Marine Food ChainThe Paja Formation, located in central Colombia, is a treasure trove of fossils. The site is integral to scientists’ understanding of ancient creatures who roamed the seas during the Early Cretaceous period, about 130 million years ago.Now, paleontologists have pieced together the food chain of this marine ecosystem. Surprisingly, they found it supported an additional level of apex predators—think massive marine reptiles—for which there is no modern equivalent.SciFri producer Kathleen Davis talks with Dirley Cortés, paleontologist at the Centro de Investigaciones Paleontológicas in Colombia and PhD candidate at McGill University’s Redpath Museum, and Dr. Hans Larsson, paleontologist and professor at McGill University’s Redpath Museum. They discuss their fascinating findings, and the importance of better understanding this part of the fossil record.   To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

In her new memoir, astrobiologist Dr. Aomawa Shields describes how a quest for life in the cosmos helped her find meaning on Earth.One of the biggest, most intriguing questions in the world is quite simple: Are we alone in this universe? Astronomer and astrobiologist Dr. Aomawa Shields looks for signs of life in outer space by analyzing the climate and habitability of small exoplanets far beyond our solar system.Dr. Shields’ path to science was a winding one. Through childhood and into her adult years, she toggled between two loves: acting and space. In her new memoir Life On Other Planets: A Memoir of Finding My Place in the Universe, she describes her search for signs of life in the cosmos and her quest to build a meaningful life here on Earth. She charts her life story from childhood to astronomy to acting and back to science—and what she’s learned about herself and the universe along the way.Guest host Swapna Krishna talks with Dr. Shields, professor at the University of California Irvine, about her research, the power that comes from combining the arts and science, and what she’s learned from pondering the universe.Read an excerpt from Life On Other Planets: A Memoir of Finding My Place in the Universe. To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Seven “clean energy hubs” will receive a total of $7B to develop forms of hydrogen production with minimal carbon emissions. And, ahead of the US Grand Prix, an aerodynamicist breaks down the recent engineering changes to F1 cars.Department Of Energy Announces ‘Clean Hydrogen Hub’ AwardeesThe Department of Energy announced seven “clean hydrogen hubs,” which will receive a cumulative $7 billion. Each group will use a host of different approaches to produce hydrogen fuel with little or no emissions.SciFri producer Kathleen Davis talks with Casey Crownhart, climate reporter for MIT Technology Review, to break down the details of this announcement and other top science news of the week, including seals helping map a canyon in Antarctica, the number of living cells in the world, and a very spicy pepper.Formula One Cars Are Stripping Off Paint To Save WeightFormula One is known as the pinnacle of motorsport, with cars that can reach speeds of 230 miles per hour. Thanks to the Netflix series Drive To Survive, the sport is more popular than ever.As engineers prepare for the U.S. Grand Prix in Austin, Texas, this Sunday, teams strive to make their cars as fast as possible. To do so, they try to reduce the ultra-fast cars’ weight by altering the construction of the frame of the car, or finding lighter engine parts. But recently, many teams have been stripping the paint off the cars instead.Even though paint on an F1 car only adds up to about three pounds, races can be won by milliseconds, so every ounce counts. In the last couple years, many teams made the decision to pare down the amount of paint used on the cars, exposing the natural black color of the carbon fiber below it. It’s why the cars on the grid look darker overall, compared to previous years.Kyle Forster, a former aerodynamicist for the Mercedes-AMG F1 team and a lead aerodynamicist for JKF Consultants, breaks down the engineering changes made to F1 cars in recent years, the newest in paint science, and what aerodynamic changes he hopes to make in the years to come.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

In a conversation from 2019, Ira and the researchers behind a “catcam” study discuss the secret lives of your feline friends.If you want the real scoop on what your cat is doing while you’re away, researchers are studying that very question, using cat cameras. Our feline friends spend quite a lot of time outside of our line of sight, and we imagine them napping, bathing, playing, hunting. But that’s merely speculation. To get the data, researchers need to catch them in the act. Maren Huck, Senior Lecturer at the University of Derby in the UK, recently published a methodological study where she successfully tracked the movements of 16 outdoor domestic cats to find out what they were up to. She joins Ira to discuss the findings, which she published in the journal Applied Animal Behavior Science.Plus, cat behavior specialist and University California, Davis veterinary school researcher Mikel Delgado joins the conversation to talk more about catching cat behavior on camera, and what we can learn from recording their secret lives. To stay updated on all things science, sign up for Science Friday's newsletters.Transcripts for this segment will be available on sciencefriday.com.

If you were asked to name the early astronauts, you probably wouldn’t have much trouble; Neil Armstrong, Buzz Aldrin, John Glenn come to mind easily enough. But what if you had to name women astronauts, besides Sally Ride? It’s a question that even space nerds might have trouble answering.A new book from space reporter Loren Grush centers those women’s stories. The Six: The Untold Story of America’s First Women Astronauts goes deep into the histories, triumphs, and tragedies of Sally Ride, Judy Resnik, Rhea Saddon, Kathy Sullivan, Shannon Lucid, and Anna Fisher. The National Aeronautics and Space Administration excluded women from its astronauts in the 1960s and ‘70s. The agency changed course in 1978, when it selected these six women from a candidate pool of 8,000.Ira sits down with Loren Grush, space reporter for Bloomberg News, to talk about why NASA delayed their inclusion, the agency politics the women had to navigate, the pressure they faced from the media, and how they made their mark on the space program.To stay updated on all things science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

When math is based on abstract concepts, how do we know it’s correct? Dr. Eugenia Cheng takes on that question in a new book. The concept of math has been around for a long time, developing independently in many different cultures. In 1650 BC, the Egyptians were creating math textbooks on papyrus, with multiplication and division tables. Geometry, like the Pythagorean theorem, was used in ancient Greece. And negative numbers were invented in China around 200 BC.Some mathematical concepts are easier to understand than others. One apple plus one apple equals two apples, for example. But when it comes to complex equations, negative numbers, and calculus, concepts become abstract. All that abstraction prompts some to wonder: Is math even real?Mathematician Dr. Eugenia Cheng has heard this question many times over her career. The quandary is the basis of her latest book, Is Math Real?: How Simple Questions Lead Us to Mathematics’ Deepest Truths. She joins Ira from Chicago, Illinois. To stay updated on all things science, sign up for Science Friday's newsletters.Transcripts for this segment will be available on sciencefriday.com.

You’ve probably heard that there’s an updated COVID-19 vaccine on the market, and maybe you’ve already gotten your updated booster. But there are new kinds of vaccines in development that go beyond just tweaking protection to better cover circulating variants.In one promising development, researchers adapted the decades-old MMR (measles, mumps, and rubella) vaccine into one covering measles, mumps, and multiple variants of SARS-CoV-2—and, rather than a shot, they delivered that experimental vaccine via a nasal spray.Dr. Eric Topol, founder and director of the Scripps Research Translational Institute, joins Ira to talk about the approach, the advantages of nasal vaccines, and other vaccines on the horizon that make use of the mRNA technology that was the focus of this year’s Nobel Prize in Physiology or Medicine. Topol hopes that the mRNA approach will be widely applicable to a range of diseases and conditions—from conventional pathogens to cancers and autoimmune disorders. To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A new analysis of ancient footprints in New Mexico adds to the debate about when humans arrived in North America. Plus, astronomer Dean Regas offers tips for safe viewing of Saturday’s eclipse. New Data Support Human Arrival In North America 22,000 Years AgoIn 2021, scientists uncovered ancient human footprints in White Sands, New Mexico. Dating of the footprints suggested that people arrived in North America thousands of years earlier than anthropologists had thought. It sparked fierce debate among researchers, some of whom raised concerns about the radiocarbon dating process used in the original study. Now, a new study provides additional data supporting humans’ arrival in North America 22,000 years ago.Ira talks with Maggie Koerth, editorial lead at Carbon Plan about the latest in this debate about the peopling of North America and other top science news of the week including how solar storms affect bird migration, why ants are getting ensnared in plastic, and how climate change is improving Bordeaux wine. This Weekend’s ‘Ring Of Fire’ EclipseThis Saturday, much of the continental United States will be treated to an astronomical event—an annular solar eclipse. In this type of eclipse, the apparent sizes of the moon and sun don’t align perfectly to Earth-bound viewers, resulting in a solar “ring of fire” shining around the edges of a moon nestled inside the boundaries of the sun.The best viewing will come in a 125-mile-wide band known as the path of annularity, which will stretch from Eugene, Oregon to San Antonio, Texas, and then on into Mexico and Central America. Viewers outside that band will still be able to see some parts of the eclipse, with the percent coverage depending on how far they are from that central line.    Even though the sun will be partly covered, it is NOT safe to look directly at the sun without eclipse glasses. If you don’t have glasses, you can look at a projection of the sun through a pinhole onto the ground or another surface—but don’t look through the pinhole at the sun. Astronomer and author Dean Regas joins Ira for an eclipse preview, and to offer viewing tips on when, where, and how to best view the solar event.  To stay updated on all things science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Saltwater Wedge Is Moving Up The Mississippi RiverAs the Mississippi River drops to one of its lowest levels in recent history, the U.S. Army Corps of Engineers said salt water from the Gulf of Mexico could threaten drinking water as far north as New Orleans’ French Quarter if no action is taken.On Friday, the Corps announced plans to avoid that scenario by building upon an existing underwater barrier that has been in place to block the progression of salt water from intruding farther upriver since July. At its current height, the Corps expects the salt water creeping up the bottom of the Mississippi River to overtop the barrier later this week, sometime around Sept. 22.If that were to happen, the salt water would begin affecting drinking water in Belle Chasse by early October.To read more, visit sciencefriday.com.Kenya’s Geothermal Boom Could Help Power AfricaBeneath Kenya, the African tectonic plate is splitting in two. That cleave creates hydrothermal vents, ripe for harnessing geothermal energy. This is a renewable source of energy derived from hot water that bubbles up from deep underground. When it comes to the surface, it turns into steam. That steam can be used to spin a turbine connected to a generator, and voilá: electricity.Kenya began to tap into this natural supply in the 1950s, and now the East African nation is the seventh largest geothermal energy producer in the world. The Kenyan government has said that the country’s untapped resources are enough to meet its peak energy demands five times over. That’s a big deal on a continent where more than 40% of people lack electricity.Joining guest host Flora Lichtman to talk about this is Geoffrey Kamadi, a freelance science journalist based in Nairobi, Kenya.  To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

How Artists And Scientists Collaborated To Make Art About HIVThis past July, the 12th International Conference on HIV Science was held in Brisbane, Australia. But this wasn’t your typical scientific conference. Yes, findings were presented on the latest in HIV research, but it culminated in a museum exhibition.12 HIV-positive artists were paired with 12 scientists, and each pair collaborated on a piece of art, largely based on the scientists’ research. One of the pieces attracted a bit more attention than the others.Kairon Liu, an artist, curator, and photographer, and Kane Race, a professor of gender and cultural studies at the University of Sydney, wanted to create something that commented on the negative effects of global HIV policy and the current stigma of living with the disease. The resulting piece is titled Untransmittable, a transparent penis-shaped sculpture filled with thousands of expired antiretroviral pills.Science Friday producer and Universe of Art host D. Peterschmidt sat down with Liu and Race to talk about the piece they made, why they couldn’t take it over the Australian border, and their hopes for future HIV research. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The latest trend in celebrity health care is full-body MRI scans, with influencers like Kim Kardashian endorsing them. These scans aren’t covered by health insurance, and run over $2,000 out of pocket. Typically, a new diagnostic tool is marketed to doctors and radiologists. But companies like Prenuvo are now marketing directly to consumers. They claim that their scans will catch early signs of cancer, aneurysms, liver diseases and even multiple sclerosis.It’s an appealing promise. If you can afford it, wouldn’t it be nice to catch cancer super early? Could it even save your life? Unfortunately, it’s more complicated than that. Simply put, the potential harms far outweigh any possible benefits of such a scan. Guest host Flora Lichtman separates fact from fad with Dr. Rebecca Smith-Bindman, professor of epidemiology and biostatistics at University of California, San Francisco’s School of Medicine, and director of the Radiology Outcomes Research Laboratory, based in San Francisco, California. To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A news story was circulating a few months ago—a woman in Australia came into the hospital with abdominal pain. She was increasingly forgetful and struggling with depression. Her doctors were stumped for over a year. What was causing her symptoms? Turns out she had a three-inch parasitic worm living in her brain. They took it out, and she recovered.How do doctors crack cases like this? How do you even know to check for a brain worm? This is the specialty of Dr. Joe DeRisi. When doctors run into a diagnostic dead end they call him. In his world, brain worms aren’t even that rare. (Ask him about brain-eating amoebas.)Guest host Flora Lichtman talks with Dr. DeRisi, professor of biochemistry and biophysics at the University of California, San Francisco’s School of Medicine and president of the Chan Zuckerberg BioHub San Francisco, about his fascinating work solving some of the most vexing medical mysteries, and how it may even help detect the next pandemic-inducing pathogen.  To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

An mRNA Advance Wins A Nobel PrizeThis week, a handful of scientists scattered around the world got surprise telephone calls announcing that they will be receiving Nobel Prizes. On Monday, the prize in medicine or physiology was announced. It went to Katalin Kariko and Drew Weissman, scientists who developed the modifications to mRNA that made the biomolecule a viable strategy for creating vaccines. On Tuesday, the Nobel in physics went to Pierre Agostini, Ferenc Krausz and Anne L’Huillier, who created techniques to illuminate the movement of electrons using attosecond-length pulses of light. And on Wednesday  Moungi G. Bawendi, Louis E. Brus and Alexei I. Ekimov learned that they had won the prize in chemistry for their work with tiny bits of semiconductor material known as quantum dots.Umair Irfan, staff writer at Vox, joins guest host Flora Lichtman to talk about the winners and their advances, and to share other stories from the week in science, including an FCC fine for a satellite company’s space junk, concerns over drought in the Amazon rainforest, and a tale of fighting a coral-threatening algal bloom using hungry crabs. Venus Lightning Debate Gets LitVenus is an inhospitable place. The longest any spacecraft has survived on the planet’s surface is thought to be around two hours. It’s blazing hot. It has bone-crushing atmospheric pressure and clouds made of sulfuric acid. But is there lightning?Flybys of Venus have detected electromagnetic signals in the radio spectrum called “whistler waves” that, on Earth, are associated with lightning strikes. So some experts speculated that Venus might have lightning too—perhaps a lot of lightning. But there was no hard proof. The question of Venusian lightning has been a topic of electric debate among scientists for some 40 years.A study published in the journal Geophysical Research Letters last month used data from the Parker Solar Probe to argue that the whistler waves around Venus may have a different cause. Research scientist Dr. Harriet George and space plasma physicist Dr. David Malaspina of the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder join guest host Flora Lichtman to talk about the finding, and what it could tell us about planets elsewhere in the galaxy.   To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com. 

The Science Behind The Placebo EffectEarlier this month, a Food and Drug Administration panel concluded that a common decongestant ingredient used in drugs like Sudafed and NyQuil doesn’t work. The panel agreed that while the ingredient, called phenylephrine, isn’t dangerous, it doesn’t work any better than a placebo.That made us wonder: How well do placebos work? And why do they work even when people know they’re getting a placebo?Ted J. Kaptchuk, professor of medicine at Harvard Medical School and director of the Program in Placebo Studies and Therapeutic Encounter at Beth Israel Deaconess Medical Center, joins guest host and musician Dessa to talk about what’s new in placebo research. They discuss the benefits placebos can offer for chronic illness management, and when doctors might start using them in treatments. Where Technology Meets AbleismWith all the bad news on our feeds, a feel-good story can be a welcome reprieve. But what happens when that story comes in the form of coverage of disability technology?You might’ve seen the videos online of a person with a physical disability being fitted with an exoskeleton, essentially “wearing” a robot, to help them walk. Onlookers cheer in the background, dramatic music swells, and we get the sense we’re watching something inspirational and empowering—a victory of the human spirit.This might seem like a triumph of scientific innovation, but our guest asks us to look again at what’s actually going on in narratives like this one.Dr. Ashley Shew, associate professor at Virginia Tech, studies the intersection of disability and technology and how our collective fixation on these fancy, supposedly transformative gadgets could be doing more harm than good. In her new book, she coins the term “technoableism” to get to the heart of the matter.Guest host and musician Dessa talks with Dr. Shew about her book Against Technoableism: Rethinking Who Needs Improvement, about what disability technology is, what the future should look like, and even how disability intersects with space travel and climate change. Sour Times For Florida’s CitrusFlorida is known for citrus, particularly its fresh-squeezed orange juice. But citrus trees in the state are struggling. For the last two decades, crops have been struck with a devastating disease called “citrus greening.” And Florida orange production has dropped some 94% over that period.                                              Citrus greening is caused by an invasive insect, the Asian citrus psyllid, which is threatening to wipe out the citrus industry in the state. One of the effects of the disease is a bitter, acidic fruit. Scientists are hard at work devising possible solutions to save Florida’s crop.Guest host and musician Dessa talks with Dr. Yu Wang, associate professor of food science at the University of Florida’s Citrus Education and Research Center, about her recent advances in making infected orange plants sweeter. Making Neuroscience Into MusicWhen composer Sarah Hennies learned about a neurological theory called “motor tapes” from Oliver Sacks’ book Musicophilia, the concept stuck with her for years. The theory comes from neuroscientist Rodolfo Llinás, who posited that many of our thoughts, memories, and physical movements operate via a series of “looping tapes,” with the goal of reducing the amount of energy the brain uses while doing common, repetitive tasks.The concept resonated with Hennies, who is also a visiting assistant professor of music at Bard College. Most of her compositions use heavy amounts of repetition, and Llinás’ theory fit with how she experienced her own memories and the evolution of her identity. Her piece “Motor Tapes” premiered in early August, performed by Ensemble Dedalus.Hennies joins guest host and musician Dessa to talk about repetition in music, how to translate neuroscience into art, and what that pairing can reveal about our bodies and the world around us. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

After 7 Years, NASA Gets Its Asteroid SampleAbout a week ago, space nerds got the delivery of a lifetime: a sample from Bennu, an asteroid soaring through the galaxy, currently about 200 million miles away. The capsule of rocks and dust came courtesy of NASA’s OSIRIS-REx, the first U.S. mission to collect a sample from an asteroid.Scientists hope it’ll help unveil some of the mysteries of our universe, like how the sun and planets came to exist or how life began. Guest host and musician Dessa talks with Sophie Bushwick, technology editor at Scientific American, about this week in science. They also chat about how antimatter interacts with gravity, the new RSV vaccine for pregnant people, why LED streetlights are turning purple, and how beetles came to dominate all other species, especially ants. How You See With Your BrainEver try to take a picture of a spectacular moon that looks like it fills up half the sky? And then you look at the photo, and the moon looks like a tiny dumb ping-pong ball? And you want to march into the Apple store and demand to know why this pocket-size device fails to capture the wonder of the cosmos properly? The majesty of that supermoon you saw might be in your head as much as it is in the sky—your brain does a lot more than just receive data reports from your eyes. Vision is complicated. Seeing involves a lot of interpretation, of which you’re usually unaware. Guest host and musician Dessa talks with neuroscientist Dr. Cheryl Olman, associate professor in the University of Minnesota’s psychology department, about her work to better understand how the brain processes visual information using sophisticated fMRI techniques, including studying the brains of people with schizophrenia. Are Jellyfish Smarter Than We Think?Jellyfish are known for their graceful, hypnotic movement through the water—and for occasionally stinging swimmers. One thing they’re not known for, however, is intelligence. A study published in the journal Current Biology, however, challenges the idea of the ‘brainless’ jellyfish by showing that at least one species of jelly may be capable of associative learning.The scientists were studying the Caribbean box jellyfish, which normally lives amongst a forest of tangled mangrove tree roots. In the lab, they painted false roots on the walls of the jellyfish’s tank, and watched to see what happened. At first, the jellies judged the low-contrast gray roots to be far away, and tried to swim through them. After a few collisions with the tank, however, the jellies learned that the false roots were closer than they appeared, and learned to keep their distance.Dr. Anders Garm, an associate professor of marine biology at the University of Copenhagen in Denmark, joins guest host Dessa to explain the experiment, and what it tells researchers about the connection between the behavior of small groups of neurons and the process of learning. The Mysteries Of Freshwater JellyfishIn 1933, a high schooler fishing along the Huron River in Ann Arbor, Michigan looked into the water and saw something weird. It turned out to be a freshwater jellyfish – the first ever discovered in the Great Lakes region. Later that year, there was another sighting in Lake Erie.Researchers think the species hitched a ride here on aquatic plants shipped from China, then spread. But there’s no evidence they harm the lake ecosystems they now call home.Since then, the jellyfish have spread across the Upper Midwest, loitering mostly in inland lakes, rivers, and streams. But we still don’t know all that much about them.A biology professor and her field research class at Eastern Michigan University are hoping to change that. Every week, they slap on masks, snorkels, and floaties, and wade out into a southeast Michigan lake on the lookout for jellyfish.Read the rest at sciencefriday.com. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Florida’s Reefs Are Vanishing. Can Scientists Save Them?This was a bad year for Florida’s coral reefs. Since the 1970s, reef cover in the Florida Keys has decreased by 90%. Those remaining reefs have been subjected to water temperatures higher than 100 degrees Fahrenheit, alongside other threats like disease and ocean acidification. This is a big problem for the largest reef in the continental U.S., which plays an important role in protecting the shorelines from erosion and storms.Scientists are scrambling to preserve as much of the reef as possible. One method marine biologists are focused on is selectively breeding corals in labs. Scientists look for the specimens most resilient to heat stress, then breed them together to create hardy offspring. Those spawn are then implanted into the reef, with hopes of bolstering the existing structure.Vox environmental reporter Benji Jones joins Ira to talk about his dives to Florida’s Pickles Reef, and the differences he saw between this year and last year. Then, Ira speaks with marine biologist Andrew Baker at the University of Miami about his efforts to bolster Florida’s reefs.  The Ocean Is A Climate AllyDid you know that the ocean absorbs about a quarter of all CO2 emissions? And about 90% of excess heat? It’s the largest carbon sink we have—and one of our biggest allies in the climate movement.Ira talks with Dr. Ayana Elizabeth Johnson, marine biologist and co-founder of the non-profit Urban Ocean Lab, as well as the climate initiative The All We Can Save Project. They chat about climate solutions—like the newly launched Climate Corps—the power of the ocean, and steps forward. Dr. Johnson is also the curator for Climate Futurism, an art exhibition at Pioneer Works in Brooklyn, New York. Feeling Hopeless About Climate Change? Try Playing These Video GamesThis segment, originally from 2022, was re-aired this week.Five years ago, Stephanie Barish was tired of the public’s attitude about climate change. “Most people at that time were just so negative about climate,” she said. “It was doom and destruction, and I thought, wow, to make positive change, you have to really look at this from a solutions perspective.” Stephanie is the founder and CEO of Indiecade, an organization that supports indie video game developers and hosts events like the Climate Jam—the goal of which was to change the gloomy public narrative around climate change. So, with the help of organizations like Earth Games, participants around the globe gather every year to make video games about climate change optimism, solutions, and justice.Teams can also consult with subject matter experts, like Dargan Frierson, an associate professor of atmospheric sciences at the University of Washington, and also a judge for the Climate Jam. If teams wonder what climate change would look like on a different planet, they can go to him for answers. “We always look for scientific accuracy,” he said. “I think it’s very important to keep things within the realm of possibility, even when you’re looking at fiction.”Read the rest at sciencefriday.com. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Week Of Climate Protests, Meetings, Pledges, And ActionClimate Week NYC is wrapping up, where hundreds of events took place across the city (including one from Science Friday), all with the goal of encouraging conversation and action around our climate crisis.The weeklong event takes place alongside the UN General Assembly meeting, where world leaders discussed climate change, alongside other topics, including the war in Ukraine and universal health coverage.While President Biden emphasized the importance of reducing the use of fossil fuels to combat climate change, there was a notable absence of leaders from the world’s biggest polluters, including Biden and president Xi Jinping of China, from the meeting’s Climate Ambition Summit. UN Secretary-General António Guterres said that in order to participate, governments need to come with “credible, serious and new climate action.”Large demonstrations also took place across the city, pressuring leaders and companies to take bigger action to end gas, oil, and coal use.Swapna Krishna, a journalist based in Philadelphia, talks with Ira about these stories and more, including a new climate jobs program from the White House, a lawsuit from California against the five big oil companies, new battery recycling rules from the EU, and data from the Parker Solar Probe’s recent flight through a sun explosion. Can Earth’s Past Climate Help Us Understand Today’s Crisis?A combination of factors led to Earth’s climate being able to support life. And changes in the climate some 6,000 years ago created the conditions for human civilization to flourish. It’s a delicate balance on the verge of collapse, due to our reliance on burning fossil fuels.Ira talks with paleoclimatologist Dr. Michael Mann about his forthcoming book Our Fragile Moment: How Lessons from Earth’s Past Can Help Us Survive the Climate Crisis, about the importance of understanding our planet’s climate history, and strategies to get policymakers to take action before it’s too late to reverse some of the worst consequences of climate change.Mann is a professor of earth and environmental science and director of the Penn Center for Science, Sustainability and the Media at the University of Pennsylvania, based in Philadelphia, Pennsylvania. Read an excerpt of the book on sciencefriday.com The Climate Movement Should Be FunnierHow do you know that climate change is funny? Even the Antarctic ice sheets are cracking up.The climate crisis is no joke, but that doesn’t mean we can’t laugh about it. Research suggests that comedy is a powerful way to connect people and get them to empathize with a cause—and the climate crisis is a pretty big one.So what does science say about the power of a good laugh? And how does that fit into the climate movement?Ira talks with Esteban Gast, comedian in residence at the clean energy non-profit Generation 180, and Dr. Caty Borum, executive director of the Center for Media & Social Impact at American University. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

New COVID Boosters Arrive Amid Rise In InfectionsThis past week, the FDA and CDC recommended new COVID vaccines from Pfizer and Moderna for anyone over the age of six months. They’re expected to be in larger pharmacies by the end of the week. It’s welcome news for some, as cases have ticked up over the summer, accompanied by higher hospital admissions and deaths.The boosters join a suite of other vaccines to combat respiratory illness this fall, including this year’s flu shot and the new RSV vaccine, recommended especially for children and the elderly.Dr. Katelyn Jetelina, epidemiologist, adjunct professor at UTHealth School of Public Health, and author of the Your Local Epidemiologist newsletter, joins Ira to talk about the details of the new boosters, how long you should wait to get one if you were recently infected, masking recommendations, and if you can get all three shots at once. The Science Behind Devastating EarthquakesOn September 8, 2023 at 11:11 PM local time, a 6.8 magnitude earthquake struck Morocco’s High Atlas mountains. So far, more than 2,500 people died and thousands more were injured or lost.Other natural disasters usually give off warning signs; we can predict when a volcano will explode, ring the alarms when a tsunami starts to build, or evacuate before a hurricane makes landfall, but we still can’t detect earthquakes before they strike. And victims are left to face “the particular trauma that comes from watching the world around you crumble in an instant,” writes science journalist Robin George Andrews for The Atlantic.Ira talks with Andrews about the specifics of this earthquake, where the science stands with earthquake detection, and the particular kind of trauma that comes from watching the world crumble. The Buzz On Native Bees In Your NeighborhoodWhen you think ‘bees,’ you probably think of a neat stack of white hive boxes and the jars of honey on the store shelves.  But there’s a lot more to bees than the agricultural staple, the European honey bee. Around the world there are over 20,000 known bee species, and around 4,000 of them are native to the United States. While these native bees play a key role in pollinating our plants and ensuring the health of ecosystems, they don’t get a ton of recognition or support. Around three-quarters of flowering plant species rely on insects for pollination, and some native plants have evolved a partnership with specific native bee pollinators. Squashes, pumpkins, gourds, and the annual sunflower all have specific species of native bees as part of their life cycles. Native plants such as blueberries, cherries, and cranberries all developed without the European honeybee, which arrived in North America in 1622. Dr. Neal Williams, a professor of entomology at the University of California, Davis, joins Ira to talk about native bees, bee behavior and pollination. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Astronomers Find Exoplanet That May Be Covered In WaterScientists using the James Webb Space Telescope made an exciting discovery this week: Exoplanet K2-18 b, 120 light years away from our solar system, could be covered by a water ocean, similar to Earth. Astronomers say this could be a big leap in our exploration of life on other planets.This news comes amid another JWST discovery: The earliest black holes seem to be much larger than black holes today. This news also provides evidence that black holes can form without stars, a theorized phenomenon that has never been directly observed.Joining Ira to talk about these and other science stories of the week is Tim Revell, Deputy U.S. Editor of New Scientist, based in New York, New York. What Radioactive Animals Teach Us About Nuclear FalloutWhen you hear the words “radioactive wildlife,” your brain probably jumps to Chernobyl’s wolves, which—despite the odds—are still thriving at the site of the nuclear disaster. Or maybe you’ve heard of the rat snakes in Fukushima that pick up radioactive contamination as they slither around.Well, it’s time to add two more to that list of radioactive critters: turtles and wild boar. They’re the subjects of two new studies that looked at radioactivity in wildlife and mapped out where it came from. Ira talks with Dr. Cyler Conrad, archaeologist at Pacific Northwest National Lab in Richland, Washington who worked on the turtle study, and Dr. Georg Steinhauser, professor of applied radiochemistry at the Vienna University of Technology in Austria, who studied boar. They chat about the two studies, how wildlife can clue us into radioactive contamination, and what we can learn from critters in nuclear fallout zones. Waiting for the Bus in Houston is Hot. And Dangerous.It was a hot summer day and Glory Medina and her daughter Jade, who was 3 at the time, were running a quick errand at the grocery store near their apartment in Gulfton. They had taken the bus and once they arrived, the two of them faced a giant unshaded parking lot, the black asphalt radiating heat into their faces as they walked across it.The blast of AC felt cool as they entered the store, and Medina bent down to lift her daughter into the grocery cart. That’s when she noticed Jade’s face was red, almost purple.“I got scared,” Medina said in Spanish, remembering that day four years ago.Read more at sciencefriday.com. The Psychology Behind Wide Receivers’ Jersey NumbersFootball season is officially here, with the NFL’s first game kicking off last Sunday. And if you’ve been watching the sport for a long time, you may have noticed some changes: better-padded helmets meant to reduce serious brain injury, new “sticky” gloves that make it easier for players to hold the ball, and lighter-weight jerseys that make it harder for other players to grab onto. But you’ll also notice the numbers on those jerseys are different, too.For most of the NFL’s history, wide receivers could only pick jersey numbers between 80 and 89. But in 2004, the league relaxed this policy, allowing players to also pick numbers between 10 and 19. Many players preferred these smaller values explaining that the 1 looked slimmer than the 8, and made them feel thinner and faster. As of 2019, 80% of wide receivers made the switch.But is there an actual association between smaller numbers and perception of body size?To investigate whether this was fact or superstition, Dr. Ladan Shams, professor of psychology, bioengineering, and neuroscience at UCLA, ran a study that found those wide receivers were onto something: the results suggest there is a correlation between smaller numbers and perceived body size. Her team’s research was published in PLOS One. She joins Ira to talk about the study and what it could tell us about implicit bias. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Where Soil Grows Above The TreesYou might be used to the feeling of Earth under your feet, but did you know that there’s soil high above your head? Way up in the treetops, where ferns, mosses, flowers, and even trees grow on top of the forest. A new study in Geoderma describes the factors that contribute to how canopy soil is formed.Ira talks with lead author Jessica Murray, an ecologist and PhD candidate at Utah State University in Logan, Utah. They discuss the importance of canopy soil, what we do and don’t know about it, and what it’s like to study it.Check out views from Murray’s field sites at sciencefriday.com!‘I Will Not Be Vole Girl’—A Biologist Warms To RodentsThe path to becoming a scientist is not unlike the scientific process itself: Filled with dead ends, detours, and bumps along the way.Danielle Lee started asking questions about animal behavior when she was a kid. She originally wanted to become a veterinarian. But after being rejected from veterinary school, she found a fulfilling career as a biologist, doing the type of work she always wanted to do—but never knew was possible for her.Science Friday producer Shoshannah Buxbaum talks with Dr. Danielle Lee, a biologist, outreach scientist, and assistant professor in biology at Southern Illinois University Edwardsville in Edwardsville Illinois about what keeps her asking questions, what rodents can help us understand about humans, and the importance of increasing diversity in science.This Soundscape Artist Has Been Listening To The Planet For DecadesJim Metzner is one of the pioneers of science radio—he’s been making field recordings and sharing them with audiences for more than 40 years. He hosted shows such as “Sounds of Science” in the 1980s, which later grew into “Pulse of the Planet,” a radio show about “the sound of life on Earth.”Over the decades, Metzner has created an incredible time capsule of soundscapes, and now, his entire collection is going to the Library of Congress.John Dankosky talks with Metzner about what he’s learned about the natural world from endless hours of recordings and what we can all learn from listening. Plus, they’ll discuss some of his favorite recordings. To hear the best audio quality, it might be a good idea to use headphones if you can.To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Scientists Develop Human Embryo Model Without Sperm Or EggsThis week, research published in the journal Nature detailed a model of a 14-day old human embryo created without using sperm or eggs. The hope is to shine a light into a previously unavailable window of an embryo’s development, potentially helping to better understand miscarriages and side effects of medications taken during pregnancy. Ira talks with Casey Crownhart, climate and energy reporter at MIT Technology Review to talk about that and other top science news of the week including Japan’s rocket launch to the moon, zinc batteries, and newly discovered toxic bird species.Sweating Is Our Biological SuperpowerSweat may feel like a constant summer companion, whether or not you exercise frequently. Being damp can feel uncomfortable, but the smells that follow—thanks to the lives and deaths of sweat-munching bacteria—are often socially stigmatized as well. (Deodorant itself is actually a very recent invention!)But sweat isn’t just a cosmetic embarrassment: It’s crucial to keeping us cool, as the evaporating liquid pulls heat energy from our bodies. If you look at animals that don’t sweat, many have evolved alternate adaptations like peeing or even pooping on body parts to achieve that vital evaporative effect. People who are born unable to sweat run a constant risk of heatstroke.Ira talks to Sarah Everts, author of the new book, The Joy Of Sweat, about what makes sweat useful, the cool chemistry of this bodily fluid, and why it’s our evolutionary superpower.Vocal Fry Serves Up Treats For Toothed WhalesToothed whales—species like orcas, bottlenose whales, and dolphins—use echolocation to zero in on prey about a mile deep into the ocean.Until now, scientists couldn’t quite figure out how the whales were making these clicking sounds in the deep ocean, where there’s little oxygen.A new study published in the journal Science, finds the key to underwater echolocation is vocal fry. Although in whales it might not sound like the creaky voice that some people love to hate, the two sounds are generated in a similar way in the vocal folds.Ira talks with the study’s co-author, Dr. Coen Elemans, professor of bioacoustics and animal behavior at the University of Southern Denmark based in Odense, Denmark. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

What’s That Smell? An AI Nose KnowsIf you want to predict the color of something, you can talk about wavelengths of light. Light with a wavelength of around 460 nanometers is going to look blue. If you want to predict what something sounds like, frequencies can be a guide—a frequency of around 261 Hertz should sound like the musical note middle C.Predicting smells is more difficult. While we know that many sulfur-containing molecules tend to fall somewhere in the ‘rotten egg’ or ‘skunky’ category, predicting other aromas based solely on a chemical structure is hard. Molecules with a similar chemical structure may smell quite different—while two molecules with very different chemical structures can smell the same.This week in the journal Science, researchers describe developing an AI model that,  given the structure of a chemical compound, can roughly predict where it’s likely to fall on a map of odors. For example, is it grassy? Or more meaty? Perhaps floral?Dr. Joel Mainland is one of the authors of that report. He’s a member of the Monell Chemical Senses Center and an adjunct associate professor in the department of neuroscience at the University of Pennsylvania in Philadelphia. Mainland joins Ira to talk about the mystery of odor, and his hope that odor maps like the one developed by the AI model could bring scientists closer to identifying the odor equivalent of the three primary colors—base notes that could be mixed and blended to create all other smells.  As Temperatures Rise, Farmworkers Are UnprotectedJuan Peña, 28, has worked in the fields since childhood, often exposing his body to extreme heat like the wave that hit the Midwest last week.The heat can cause such deep pain in his whole body that he just wants to lie down, he said, as his body tells him he can’t take another day on the job. On those days, his only motivation to get out of bed is to earn dollars to send to his 10-month-old baby in Mexico.To read more, visit sciencefriday.com. The Golden Lion Tamarin Rebounds From The Brink Of ExtinctionThe Golden Lion Tamarin is a small, charismatic monkey with a mane of red fur that’s a local celebrity in Brazil’s Atlantic Forest. This pint-sized primate was on the brink of extinction back in the 1970s, with only about 200 left in the wild.After decades of concentrated conservation efforts, an estimated 4,800 golden lion tamarins are now living in the wild. The multi-pronged effort involved reconnecting parts of the forest that had disappeared due to deforestation, vaccinating monkeys against yellow fever, and reintroducing zoo-bred primates to the wild.Ira speaks to Carlos Ruiz Miranda, associate professor of conservation and behavior at Northern Rio de Janeiro State University in Campos dos Goytacazes, Brazil. Dr. Ruiz Miranda has worked on restoring golden lion tamarin populations for decades, and was involved in every facet of this effort.  Unraveling the Mysteries Of The Y ChromosomeLast week, we briefly mentioned the sequencing and analysis of the human Y chromosome, which was recently reported in the journal Nature. It’s an important achievement—the small Y chromosome is filled with repeated segments of genetic code that make reconstructing the full sequence difficult. Think of trying to put together a jigsaw puzzle—the unique parts of the picture are easy, but areas with repeated colors, like sky or waves, are more challenging.    In addition to the complete sequence of one individual’s Y, other researchers compared the Y chromosomes of 43 different individuals—and found that the structure of the chromosome can vary widely from one person to another.The Y chromosome plays a key role in sex determination and sperm production, making it of interest to fertility researchers. It’s also linked to some diseases and health conditions.Adam Phillippy, a senior investigator in the computational and statistical genomics branch of the National Human Genome Research Institute at the National Institutes of Health, and Kateryna Makova, a professor of biology at Penn State University, join Ira to talk about the challenges of sequencing the Y chromosome, and what doing so might mean for medical research. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

What To Expect From Hurricane SeasonWe’re approaching the peak of hurricane season, which is usually around mid-September. It’s that time of year when it feels like there’s a new storm every week, and we blow through the alphabet trying to name them. This week, Hurricane Idalia made landfall around Florida’s Big Bend as a Category 3 storm, which caused a few fatalities, left hundreds of thousands of people without power, and some without homes. So what do we know about Idalia, and what can we expect from the rest of the hurricane season?Ira talks with Rachel Feltman, editor at large at Popular Science, about hurricane season and other science news of the week. They chat about what we’re learning from India’s lunar rover, a three-inch roundworm pulled out of someone’s brain, a new study about public health and air pollution, heavy metals in marijuana products, what an ancient Egyptian mummy smells like, and a turtle named Tally, who is far from home. The Surgeon General Warns About An Epidemic Of LonelinessThe early days of the COVID-19 pandemic were lonely for many, upending their social lives. But loneliness pre-dates COVID, especially among young people. In a recent advisory, the United States surgeon general, Dr. Vivek Murthy warned that the negative health effects of loneliness and isolation are comparable to smoking daily. Despite being more technologically connected than ever before, the Surgeon General’s Office is also raising concerns about the harms of social media on youth mental health.Ira sits down for a conversation with the United States surgeon general, Dr. Vivek Murthy, about the intersection of youth mental health, social media, and loneliness. Dr. Murthy outlines both public policy and community interventions that can help strengthen America’s emotional well being and social connections. Keeping Tabs On Tick BitesIf you live in the Midwest or Northeast, you’re probably aware of an issue that’s gotten worse over the years: ticks, and the illnesses they can spread, including Lyme Disease and Alpha-gal syndrome.Scientists are still trying to learn more about how and where ticks are spreading. That’s where The Tick App comes in. It’s a community science effort where you can log your tick encounter and help scientists learn more about tick-borne disease. Science Friday digital producer Emma Gometz sat down with Ira to talk about her recent article profiling the app, and the scientists behind forms of tick monitoring research. To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

How Early Humans May Have Transformed L.A.’s Landscape ForeverJoin us on a time traveling adventure, as we go back 15,000 years to visit what’s now southern California. During the last Ice Age, saber-toothed cats, wooly mammoths, and dire wolves prowled the landscape, until … they didn’t. The end of the Ice Age coincided with the end of these species. And for decades, scientists have been trying to figure out a big question: Why did these animals go extinct? A new study in the journal Science offers new clues and suggests that wildfires caused by humans might’ve been the nail in these critters’ coffins. Guest host Flora Lichtman talks with paleoecologist Dr. Emily Lindsey and paleobotanist Dr. Regan Dunn, both curators at the La Brea Tar Pits and Museum in Los Angeles, California, about what we can learn from animals preserved in tar pits, how fire transformed the ecosystem, and why we have to look to the past for modern day conservation and land management. How Scientifically Accurate Are The Sharks In ‘Meg 2: The Trench’?“Meg 2: The Trench” is the sequel to the 2018 movie “The Meg,” in which a team of ocean scientists discover a megalodon, the largest shark that ever lived, thriving at the bottom of the Mariana Trench. Megalodon went extinct over 2.6 million years ago … or so the movie’s characters thought.When the team’s research sub gets damaged, a skilled rescue diver, played by Jason Statham, is brought in, who happened to have encountered the same megalodon years earlier. Over the course of the movie, the team discovers how this long-thought extinct apex predator survived, and what they can do to stop it before it wreaks havoc on the surface world.“Meg 2: The Trench” largely follows in that movie’s footsteps, but this time, it features not just one, but multiple megalodons. Oh, and they’re even bigger this time. Universe of Art host D. Peterschmidt chats with Dr. Sora Kim, an associate professor of paleoecology at University of California, Merced, about what science the movie got wrong (and right) and how these over-the-top blockbusters can inspire the scientists of the future. Scientists Discover Dinosaur ‘Coliseum’ In Alaska’s Denali National ParkResearchers recently discovered a rocky outcrop at Denali National Park in Alaska covered in dinosaur tracks, which they dubbed the “Coliseum.” It’s the largest dinosaur track site ever found in Alaska. The area has thousands of prints from generations of dinosaurs living about 70 million years ago, including: duck-billed dinosaurs, horned dinosaurs, raptors, tyrannosaurs.  Flora Lichtman talks with Dustin Stewart, former graduate student at the University of Alaska Fairbanks and paleontologist for the environmental consulting firm Stantec, based in Denver, Colorado, about this dino hotspot. Your Guide To Conquering History’s Greatest CatastrophesGuest host Flora Lichtman takes us back to some of the scariest, deadliest moments in history. Think along the lines of the eruption of Mount Vesuvius, the Ice Age, and the asteroid that wiped out the dinos. But we’re going to revisit them using what we know now—and science, of course—to figure out if and how we could survive those events.The idea of using science and hindsight to survive history is the premise of a new book, How to Survive History: How to Outrun a Tyrannosaurus, Escape Pompeii, Get Off the Titanic, and Survive the Rest of History’s Deadliest Catastrophes by Cody Cassidy. We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Countries Seek To Return To The MoonOn Wednesday, the Indian space agency ISRO celebrated as its Chandrayaan-3 craft successfully made a soft landing at the lunar south pole. This is the first mission to explore the region around the moon’s southern pole, and a major success for ISRO. The mission plans to use a robotic rover to conduct a series of experiments over the course of about 2 weeks, largely centered around the availability of water and oxygen-containing materials.Less than a week earlier, a Russian craft, Luna-25, crashed onto the moon. It would have been Russia’s first moon landing in 47 years. The cause of the crash is not yet known. Maggie Koerth, science journalist and editorial lead for CarbonPlan, joins guest host Flora Lichtman to talk about the two lunar missions and whether the flurry of activity signals a new space race.They’ll also discuss other stories from the week in science, including a new analysis of the Y chromosome,  work on the camouflage skin of the hogfish, and a setback in a mission to clear up space junk. What’s The Human Cost Of Alaska’s Mineral Boom?A dusting of snow clings to the highway as Barbara Schuhmann drives around a hairpin curve near her home in Fairbanks, Alaska. She slows for a patch of ice, explaining that the steep turn is just one of many concerns she has about a looming project that could radically transform Alaskan mining as the state begins looking beyond oil.Roughly 250 miles to the southeast, plans are developing to dig an open-pit gold mine called Manh Choh, or “big lake” in Upper Tanana Athabascan. Kinross Alaska, the majority owner and operator, will haul the rock on the Alaska Highway and other roads to a processing mill just north of Fairbanks. The route follows the Tanana River across Alaska’s interior, where spruce-covered foothills knuckle below the stark peaks of the Alaska Range. Snowmelt feeds the creeks that form a mosaic of muskeg in nearby Tetlin National Wildlife Refuge, a migration corridor for hundreds of bird species.To read the full article, visit sciencefriday.com. Salmon Flourish After Mine Damage Restored In AlaskaOn Friday, July 28, there were hundreds of juvenile salmon clustered in a pool, in clear water surrounded by a bank of fresh woody debris. Not 100 yards away, a spinning drum processed sediment to extract gold.This land is managed by a mining company, but it’s also the site of a major stream restoration project. Thousands of salmon are returning to this stream in Hope, more than 100 years after aggressive gold mining affected the path of the river. The project to restore Resurrection Creek has brought together a coalition of stakeholders, including the present-day mining company that occupies the site.The restoration of Resurrection Creek began in the early 2000s. The goal was to correct habitat damage caused by historic mining.More than 100 years ago, heavy mining activity in the gold rush town affected the stream pattern, turning it from a meandering creek to a straight ditch. Jim Roberts is vice president of Hope Mining Company, and he said hydraulic mining in the early 1900s fundamentally changed the waterway.To read the full article, visit sciencefriday.com. All About Sea OttersLast month, a rowdy sea otter was stealing surfboards off the coast of Santa Cruz California, biting chunks out of surfboards, and even catching a few waves. It’s rare for a sea otter to get so close to humans in the wild. Authorities are trying to capture the otter, named 841, for her safety and that of the surfers. But, a month later, she remains at large.  Guest host Flora Lichtman talks with Jessica Fujii, sea otter program manager at the Monterey Bay Aquarium to get the 411 about Otter 841, and talk all things sea otter—including their sophisticated use of tools, carrying food in their armpits, and busting myths about hand holding.  To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Challenging The Gender Gap In Sports ScienceThis weekend, Spain and England face off in the Women’s World Cup Finals in Sydney, Australia.The first Women’s World Cup was in 1991, and the games were only 80 minutes, compared to the 90-minute games played by men. Part of the rationale was that women just weren’t tough enough to play a full 90 minutes of soccer.This idea of women as the “weaker sex” is everywhere in early scientific studies of athletic performance. Sports science was mainly concerned with men’s abilities. Even now, most participants in sports science research are men.Luckily things are changing, and more girls and women are playing sports than ever before. There’s a little more research about women too, as well as those who fall outside the gender binary.SciFri producer Kathleen Davis talks with Christine Yu, a health and sports journalist and author of Up To Speed: The Groundbreaking Science of Women Athletes, about the gap in sport science about women. Using Stem Cells For Cornea Repair Is Worth A LookEach year in the US, over 40,000 people receive transplants of the cornea—the clear front part of the eye that light goes through first. Still more patients with damaged corneas might receive artificial corneas to help restore clear vision. But if an eye has been damaged by a chemical burn or another severe eye injury, neither of those treatments may be possible.Now an early, Phase 1 clinical trial is reporting positive results using a stem cell technique called CALEC. It grows cells from a patient’s healthy eye, and then grafts them back into the damaged eye, either to support corneal tissue regrowth or as a foundation for a traditional transplant. Dr. Ula Jurkunas, associate director of the Cornea Service at Mass Eye and Ear, and   Dr. Jerome Ritz, the executive director of the Connell and O’Reilly Families Cell Manipulation Core Facility at Dana-Farber Cancer Institute, join Ira to talk about how the process works, and the challenges of manufacturing stem cell tissues in the lab for use in the human body.From Skyscrapers to Sand Thieves—Digging Into The World Of SandWhen you think of sand, thoughts of the ocean and sand castles probably come to mind. But sand can be found in much more than beachfronts. Sand is a key ingredient in concrete for skyscrapers, silicon for computer chips, and the glass for your smartphone.Vince Beiser, journalist and author of the book The World in a Grain: The Story of Sand and How it Transformed Civilization, traveled to sand mines in India and beach nourishment projects around the world to follow the story of how sand has become a vital resource. He talks about the many uses of sand in our everyday lives and some of the consequences that come from our dependence on this natural resource.To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Youth Climate Activists Score A Win In MontanaThis week, a state court in Montana ruled in favor of a group of 16 youth climate activists, who argued that a state environmental law was in violation of a provision in the state constitution. The Montana constitution states: “The state and each person shall maintain and improve a clean and healthful environment in Montana for present and future generations.”  The ruling will allow (but not require) regulators to consider climate impacts when evaluating proposed energy projects for approval.Umair Irfan, staff writer at Vox, joins Ira to talk about the decision and what it might mean for other climate-related litigation around the country. They’ll also discuss other science news of the week, including some strange particle physics from Fermilab,  the end of the road for the common incandescent light bulb, and how researchers decoded a snippet of song — using electrodes on a brain. COVID-19’s Summer Wave Raises New QuestionsStep outside into a public place, and you may experience some deja-vu: Masking is back up, the coughs and sniffles are echoing, and coworkers are calling in sick. It’s not just your imagination—hospitalizations from COVID-19 are up 14.3 percent for the week of August 5. This new wave has a name: EG. 5, named for the recent Omicron variant that is now the most prevalent.With new boosters on the horizon, Ira catches up with Dr. Angela Rasmussen, virologist at VIDO, the Vaccine and Infectious Disease Organization, at the University of Saskatchewan. They answer questions about the new monovalent booster, testing guidance, and why COVID-19 is still a public health problem.New Research Suggests Neurological Culprit For COVID Brain FogAmong the most debilitating symptoms of Long Covid is brain fog, a condition which includes symptoms like confusion or inability to concentrate. A recently published study using mice cells in petri dishes suggests that brain fog might be the result of neurons fusing together. The results have yet to be tested in live animals or humans. SciFri producer Kathleen Davis talks with study author, Dr. Ramón Martínez-Mármol, research fellow at the Queensland Brain Institute, at the University of Queensland, based in Brisbane, Australia, about what his research might help us better understand about brain fog. Reno Is Preparing To Turn Its Wastewater Into Drinking WaterInside a water treatment plant in north Reno, Nev., on a recent Wednesday, recycled wastewater was running beneath a floor grate inside a small testing room. Inside the space is a system of serpentine-like PVC pipes with 19 different ports, used to test water samples at different intervals.“It’s about halfway through the treatment process at the wastewater facility,” said Lydia Teel, an engineer with the Truckee Meadows Water Authority, or TMWA, which serves about 440,000 people in the greater Reno area. “So, it’s clean, but there’s still some color, there’s bacteria in it, some solids.”Teel spearheads a demonstration project called OneWater Nevada, an effort to show that the region can recycle the water that flushes down people’s toilets and shower drains and – eventually – turn it back into clean, pure drinking water flowing from faucets, effectively creating a new water resource. The project is a collaboration between TMWA, the cities of Reno and Sparks, the University of Nevada, Reno, Washoe County, and the Western Regional Water Commission.The Reno area doesn’t have a history of threatened water supplies, and historic snowfall this past winter eased drought conditions in Nevada and across parts of the Mountain West. But that could shift quickly with climate change.To stay updated on all-things-science, sign up for Science Friday's newsletters.Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   Devastating Fires Might Become More Common In Hawaii As of Friday morning, at least 55 were dead and thousands were seeking shelter on Maui, after wildfires tore across the Hawaiian island. Officials there say that the fires, once rare, have caused billions of dollars in damage, and the Biden administration has made federal disaster relief available. The fires were driven by strong, dry winds from nearby Hurricane Dora, and were made worse by ongoing drought conditions. The region has grown hotter and drier, and highly flammable invasive grasses have been crowding out native vegetation. Bethany Brookshire, freelance science journalist and author of the book Pests: How Humans Created Animal Villains, joins Ira Flatow to talk about this story and others from this week in science news, including an investigation into unknown genes in our genome, a 390 million year-old moss that might not survive climate change, and a fish that plays hide and seek to get to its prey.    A Tuna’s Reel Life Adventures Bluefin tuna is typically sliced into small pieces, its ruby red flesh rolled into sushi. But don’t let those tiny sashimi slices fool you. Bluefin tuna are colossal creatures—on average, they’re about 500 pounds. The biggest one ever caught was a whopping 1,500 pounds. They can travel thousands of miles at breakneck speeds, and their skin changes color! The fish, once in danger of extinction, have now rebounded due to a combination of scientific advances and possibly as a result of climate change. Ira talks with Karen Pinchin, science journalist and author of the new book, Kings of Their Own Ocean: Tuna, Obsession, and The Future of Our Seas about a tuna nicknamed Amelia who traveled across the world, the fisherman who tagged her, and what their stories can help us better understand about the mighty fish. Read an excerpt of the book here.   Preserving Acadia National Park’s Vanishing Birdsong Acadia National Park in Maine is home to more than 300 bird species. Climate change is affecting the range of many of these birds, to the extent that some may not be found in the area in the future. A team of volunteers has made it their mission to record as many bird sounds as possible—while they still can. Laura Sebastianelli is the founder and lead researcher of the Schoodic Notes Bird Sounds of Acadia project. She’s helped collect more than 1,200 bird sounds on tape, with the hopes of aiding future researchers. Sebastianelli joins Ira to talk about the project.    World’s Richest Lithium Deposit Faces Opposition To Mining Five years ago, professional gem hunters Mary and Gary Freeman stumbled upon the richest known lithium deposit in the world in the woods of western Maine. Lithium is a silvery metal many consider to be key to the transition to a clean energy future, thanks to its role in technology like lithium-ion batteries. The Maine deposit could be a way for the United States to be independent in their lithium sourcing. But there’s stiff opposition to digging up the mineral within Maine. Kate Cough, reporter and enterprise editor for The Maine Monitor, reported this story in collaboration with Time Magazine. Cough is a Report For America corps member. She joins Ira to discuss the debate.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.     In ‘The Pod Generation,’ Pregnancy Goes High-Tech In the new movie The Pod Generation, a wife named Rachel, played by Emilia Clarke, and her husband Alvy, played by Chiwetel Ejiofor, want to start a family. In the movie’s near future, you don’t have to have a baby by getting pregnant, or using IVF, or going through a surrogate. If you’re lucky, you can get a reservation at The Womb Center, where you can grow your baby inside a convenient, high-tech, egg-shaped pod. Pressured by her friends and her work’s HR department, Rachel decides to give The Womb Center a shot. Science Friday producer and Universe of Art host D. Peterschmidt sat down with the film’s writer and director, Sophie Barthes, to talk about what inspired her to make the movie, and what may be lost in the thoughtless pursuit of technology.     The Rising Tide Against Deep Sea Mining The ocean’s seabed is filled with minerals like copper, nickel, and cobalt—the very raw materials that tech companies use to make electronics and batteries. Some view it as fertile ground to mine and exploit, launching an underwater mining rush. Last month, world leaders gathered in Kingston, Jamaica to hash out the future of deep sea mining. For years, the International Seabed Authority—the organization in charge of authorizing and controlling mineral operations on the seafloor—has been trying and failing to put together a set of guidelines for deep sea mining.  Ira talks with Dr. Diva Amon, marine biologist at the Benioff Ocean Science Laboratory at the University of California Santa Barbara and director of the non-profit SpeSeas, based in Trinidad and Tobago. They talk through the science of deep sea mining, the policies being debated, and what the world risks losing. Then, Ira talks with Solomon Pili Kahoʻohalahala, Chairperson of the non-profit Maui Nui Makai Network and Native Hawaiian Elder of the Papahānaumokuākea Marine National Monument Advisory Council.     August Skies Set To Dazzle August is shaping up to be a great month for stargazing, with or without a telescope. Celestial wonders such as a Perseid meteor shower and a Super Blue Moon will take place soon. Saturn will also be lit up for the remainder of August, and should be visible to the naked eye on a clear night. Joining Ira to talk about what we can see this month in the night sky is astronomer, author, and podcaster Dean Regas. Regas also talks about recently leaving his long tenure at the Cincinnati Observatory, and what’s next for his love for astronomy.     To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   Protecting Other Planets From Earth’s Germs For decades, people have been trying to figure out how to avoid contaminating other planets as they explore them—an idea called planetary protection. As missions venture forth to places such as Mars or Jupiter’s moon, Europa, the need to protect worlds that could support life becomes more critical. And at the same time, as space programs begin to bring samples back to Earth from places like Mars or asteroids, planetary protection becomes a concern in another way—the need to protect Earth from potential unknown life forms from the cosmos. Sending humans to another world raises the stakes even more. NASA has a limit of no more than 300,000 spores (single-celled organisms) allowed on board robotic Mars landers. But human bodies contain trillions of microorganisms, making it impossible for human missions to achieve the same level of microbial cleanliness as robotic landers. Dr. Nick Benardini is a NASA official responsible for ensuring that the proper precautions are made to prevent humans from contaminating outer space. Ira Flatow spoke to him about how to avoid spreading microbes between planets.   Ask An Expert: An Evolution Education Most people raised in the U.S. were taught about evolution in science class growing up. But how much do you actually remember? Charles Darwin’s On the Origin of Species or Gregor Mendel’s pea plant experiments may ring a bell, but it’s likely most of us could use a refresher. A good grasp on the science of evolution is extra important these days, argues Prosanta Chakrabarty, author of the new book, Explaining Life Through Evolution, and curator of fishes at Louisiana State University. In 2008, Louisiana’s governor signed the Louisiana Science Education Act, which allows schools to teach creationism as an alternative to evolution. Chakrabarty joins Ira to talk about the science behind evolution and take questions from listeners. Read an excerpt of the book here.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   A Possible Breakthrough Superconductor Has Scientists Split Recently, a superconducting material went viral in the scientific community. Researchers in South Korea say they’ve discovered a room-temperature, ambient-pressure superconductor. If it works, it would create electricity under normal, everyday conditions. But some scientists are hesitant to applaud this purported breakthrough. This field has a long history of supposed breakthroughs, many of which turn out to be not so superconducting after all. In other science news, NASA has detected a ‘heartbeat’ from the Voyager 2 spacecraft, which lost contact last month. This may allow scientists to reestablish contact with the spacecraft before its expected October 15 date. Joining Ira to talk about these stories and more is Sophie Bushwick, technology editor for Scientific American, based in New York, New York.   How Oppenheimer’s Bombs Compare To Today’s Nukes On the day the film Oppenheimer came out, Science Friday discussed the history of the Manhattan Project, including the legacy of the Trinity Test, where the world’s very first nuclear weapon was detonated in the desert of New Mexico. We also heard from a survivor of the Hiroshima bombing and a New Mexican downwinder. But our listeners responded with even more questions that we couldn’t get to—including this, from Randy in Orlando, who wrote, “I’ve heard Neil deGrasse Tyson say the new bombs aren’t that dirty?” Randy’s referring to the astrophysicist’s interview last November, in which he said: “Modern nukes don’t have the radiation problem … it’s a different kind of weapon than Hiroshima and Nagasaki.” We wanted an answer to this question—and others—about current nuclear weapons technology, an issue that Russia’s implied threats of using nuclear weapons against Ukraine also raise. Ira talks with Dr. Zia Mian, a physicist and co-director of Princeton’s Program on Science and Global Security, about how nuclear weapons technology has evolved over the last 80 years, how many there are, and the new threats they pose.   From Splenda to Aspartame: Are the Artificial Sweeteners We Use Hurting Us? The World Health Organization recently classified aspartame as a “possible carcinogen.” While the designation may seem scary, it simply indicates that the agency cannot rule out that the substance causes cancer. There is not enough evidence to suggest that aspartame, found in many sugar-free beverages, is linked to cancer. Ira breaks down the science behind that decision, what we know about the health effects of artificial sweeteners, and takes listener calls with guests Marji McCullough, senior scientific director of epidemiology research at the American Cancer Society and Dr. Walter Willett, professor of epidemiology and nutrition at the Harvard T.H. Chan School of Public Health.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   What Is Your Cat’s Meow Trying To Tell You? Cats have formed bonds with humans for thousands of years. But what exactly is going on in our furry friends’ brains? What are they trying to tell us with their meows? And why did humans start keeping cats as pets anyway? To help answer those questions and more, John Dankosky talks with Jonathan Losos, professor of biology at Washington University in St. Louis, Missouri, and author of the new book, The Cat’s Meow: How Cats Evolved from the Savanna to Your Sofa.   Read an excerpt of the book at sciencefriday.com.   Researchers Quantify The Navajo Nation’s Water Crisis In Fort Defiance, one of five main communities situated on the Arizona-New Mexico border in the Navajo Nation, Taishiana Tsosie and Kimberly Belone are standing in a mobile office’s cramped bathroom. The two researchers from the Johns Hopkins Center for Indigenous Health turn off the lights and hold up plastic bags filled with water from the bathroom sink. Each bag has five small compartments, filled with the same sink water. Where they differ is in the chemicals added to each compartment. “This is our compartment bag, and we use this and several other chemicals and tablets to test for E. coli in the water,” Tsosie said. Today, the researchers are testing for harmful bacteria, but they also run separate tests for dangerous metals in drinking water. To read the rest, visit sciencefriday.com.   Chumash Tribe Champions National Marine Sanctuary For generations, the Chumash tribal nation have been stewards of a vital marine ecosystem along the central coast of California, bordering St. Louis Obispo County and Santa Barbara County. The area is home to species like blue whales, black abalone, and snowy plovers. And it’s also an important part of the Chumash tribe’s rich traditions and culture. Tribal leaders have pushed for decades to designate the area as a national marine sanctuary. Now, the Chumash Heritage National Marine Sanctuary is in the final stages of the approval process, which would make it the first tribally nominated national marine sanctuary in the country. John Dankosky talks with Stephen Palumbi, professor of marine sciences at Stanford University and Violet Sage Walker, chairwoman of the Northern Chumash Tribal Council, about the importance of this region and their collaborative research project.   Where The Rubber Meets The Road For Electric Cars You might not give your car’s tires a lot of thought unless you get a flat, or you live somewhere you need to swap in snow tires. But as more people in the US make the switch to electric vehicles, some are finding they have to think about their tires more often. Some EV drivers are finding that their tires wear out more rapidly than they had with traditional internal combustion-driven vehicles—in some cases, 20 percent faster. The problem has multiple causes. Many EVs are heavier than regular cars of a similar size, which puts more load on the tires. When combined with the almost instant torque provided by electric motors, that can lead to leaving rubber on the road—even when a driver isn’t attempting to burn rubber. Ryan Pszczolkowski, tire testing program manager at Consumer Reports, joins Diana Plasker to talk about the special engineering that comes into play when the rubber meets the road in an electric car.   Is The Plastic In Your Old Barbie Toxic? ‘Barbie’ is going gangbusters at the box office, and it’s prompted a whole new interest in the iconic, if occasionally problematic, toy doll. If you’ve been moved by the movie to dig your old Barbie out from the attic, don’t be surprised if she looks…different. The PVC (polyvinyl chloride) toy dolls of the 1950s—and for the next 50 years after that—contained plasticizers that, over time, can degrade, discolor, and even become sticky. And the chemical compounds being released by an old PVC toy might be toxic to your toddler. Science Friday’s AAAS Mass Media Fellow Chelsie Boodoo is a big Barbie fan. She wanted to find out more about what these old Barbies are made of, and whether we should be worried. So, she turned to Dr. Yvonne Shashoua, a research professor from the National Museum of Denmark. She explains what happens to plastic dolls over time, how museums like hers preserve vintage toys, and even some tips to keep Barbie looking like new. (Hint: make room in the freezer!)   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   No, The Gulf Stream Is Not Collapsing A sobering climate study came out this week in the journal Nature Communications. It suggests that a system of ocean currents—called the Atlantic meridional overturning circulation (AMOC)—could collapse sometime between 2025 and 2095, which could have dire climate consequences for the North Atlantic. SciFri director of news and audio John Dankosky talks with Swapna Krishna, a journalist based in Philadelphia, about what this means and what could be at stake. They also chat through other big science news of the week, including the detection of water vapor around a very distant star, a new image depicting the first detection of gas giants being formed around stars, a new theory for the origin of the world’s “gravity hole,” why the fuzzy asp caterpillar packs such a scary sting, and what scientists can learn from ticklish rats.   The State Of Reproductive Health, One Year After Dobbs In the year since the Supreme Court decided Dobbs v. Jackson Women’s Health Organization, overturning the federal right to an abortion, states jumped into action. Thirteen states banned abortion with limited exemptions, and three others have banned abortion after the first trimester. A handful of other states have extremely restrictive abortion access, or otherwise remain in legal limbo, awaiting court decisions or new laws to be signed. Leading up to Dobbs decision, SciFri delved into the science behind reproductive health and the potential ripple effects on access to care. Now, a little over a year later, we’re following up what’s going on. SciFri guest host and experiences manager Diana Plasker talks with Usha Ranji, associate director for Women’s Health Policy at the Kaiser Family Foundation, based in San Francisco, California, about her survey of 569 OB-GYNs across the country. They discuss the growing disparities in states between where abortion is banned and where it remains legal. Later, John Dankosky talks with Dr. Rebecca Cohen, chief medical officer at the Comprehensive Women’s Health Center, based in Denver, Colorado, about providing abortion and pregnancy care in a state where abortion is legal, and seeing patients who are traveling from states with bans in place.   The Kākāpō Parrot Returns To New Zealand Before humans arrived in New Zealand, parrots called kākāpō freely roamed across the islands. They are the world’s only living flightless parrots, and they’re a bit smaller than the average chicken. But the kākāpō’s population started crashing centuries ago, due to human interference and the arrival of predators like cats, rats, and stoats. At one point, the species was teetering on the brink of extinction. For decades, scientists have been capturing and relocating kākāpō to safe islands, hoping their population would grow. It did, and the kākāpō’s recovery team just reached a huge milestone: bringing four birds back to the mainland, a place they haven’t existed since the 1980s. Guest host and SciFri events manager Diana Plasker talks with Deidre Vercoe, operations manager for the New Zealand Department of Conservation’s kākāpō and takahē teams, about the history of kākāpō conservation, what this win means, and what’s next for these beloved birds.   Far Beyond Their Native Habitat, Parrots Rule The Roost In many urban areas across the U.S. and abroad, feral, non-native parrots have become established. This is true in Brooklyn’s Green-Wood Cemetery, where a colony of lime green monk parakeets have inhabited a massive nest on top of the gothic entrance gate. How exactly these parrots wound up here is a bit of a mystery. “The lore that’s passed around is that at some point a box of parrots, perhaps at the airport, got overturned,” said science writer Ryan Mandelbaum. “What’s more likely is a combination of people releasing their [pet] parrots and parrots escaping in some critical mass.” Mandelbaum wrote the cover story for July’s issue of Scientific American all about the resilience of parrots. SciFri producer Kathleen Davis interviewed them at Green-Wood Cemetery, where they discussed why these parrots are not just surviving, but thriving.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts. Astronomers Spy A Two-Faced Star This week, astronomers report in the journal Nature that they’ve discovered a white dwarf—a dying star’s dense inner core—that, instead of being uniform in composition, has a surface that appears to be hydrogen on one face and helium on the other. The star rotates on its axis once every 15 minutes, bringing each face into view. Researchers spotted the unusual object with an instrument called the Zwicky Transient Facility, which initially singled out the star because of its rapidly changing brightness. The astronomers aren’t sure why the white dwarf, which they’ve nicknamed Janus after the two-faced Roman god, has this strange divided surface. Some possible theories include shifting magnetic fields which produce areas of different density, or that it’s a step in stellar evolution only partially complete. Tim Revell, deputy US editor at New Scientist, joins John Dankosky to talk about the two-faced star and other stories from the week in science, including the resignation of the Stanford University president amidst an ethics probe, discovery of ancient natural graphene, an earthworm invasion in the Arctic, and investigations of alcoholic fruit. How Does The Brain Control Your Every Move? As you read this, every small action your body makes—eyes scanning the page, fingers scrolling a mouse, scratching an itch on your face—must be dictated by your brain. These actions usually happen without a second thought. But inside the brain, the motor cortex is hard at work making the body move. For nearly a century, every neuroscience student came across the “homunculus”—a visual representation of which areas of the brain control certain body parts. But for the last few decades, some researchers have disputed this traditional view of brain mapping. This includes a recent study, led by Washington University in St. Louis. Joining guest host John Dankosky to discuss how the brain and body are connected are study lead author Evan Gordon, assistant professor of radiology at Wash U., and Michael Graziano, professor of psychology and neuroscience at the Princeton Neuroscience Institute in Princeton, New Jersey. To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts. Revisiting The Nuclear Age With ‘Oppenheimer’ This weekend, Christopher Nolan’s long awaited film Oppenheimer hits theaters. It tells the story of American physicist J. Robert Oppenheimer, and his road to becoming the “father of the atomic bomb.” With its release, audiences will be faced with the United States’ contentious history in developing and deploying the world’s first atomic weapons, marking a point of no return for the entire world. Nearly 80 years since the bombs were first developed and tested in the New Mexican desert—and then dropped on Hiroshima and Nagasaki—the world is still reckoning with the Manhattan Project and Oppenheimer’s legacies. In this live call-in show, Science Goes To The Movies, we analyze the roles of scientists during the Manhattan project, hear from the people most affected by Oppenheimer’s work, and pick apart his life and legacy—one which asks to what extent scientists are responsible for the things they create. To read the rest, visit sciencefriday.com. To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   Where’s The Beef? Lab-Grown Meat Gets U.S. Approval People have been looking for meat-alternatives for decades. Vegetarians avoid animal products for many reasons, from concerns over animal treatment and slaughtering practices to the meat industry’s climate impacts. Methane from cows and other livestock contribute about 15% of all greenhouse gas emissions. There have been plant-based alternatives on the market for awhile now, but another method has quietly gained steam over the past decade: meat grown in a lab, using cultured cells. This past June, the U.S. Department of Agriculture approved two companies—Eat Just and Upside—to grow and sell cultivated chicken products in the U.S. Lab-developed beef will likely be next, while some companies are even working on cultivated pet food meat. (Lab-grown mouse meat kibble, anyone?) But will growing tissue in a lab actually reduce greenhouse gas emissions, and … will people even want to eat it? Joining Ira to discuss this beefy topic is Casey Crownhart, climate reporter at the MIT Technology Review, who talks about how this kind of meat is made in a lab, the challenges the industry faces, and what lab-grown beef patty tastes like.   How Rising Temperatures Are Shifting The Ground Beneath Chicago As global temperatures rise, cities are typically hotter than rural areas. Tall buildings trap heat and temperatures don’t drop nearly as low at night. Out of sight, just below the surface, it’s also getting hotter. Scientists are beginning to document the unexpected consequences of underground climate change. A new study measuring the phenomenon used sensors to track increasing temperatures underground in Chicago and map how the earth has shifted beneath the city as a result. Ira talks with the lead researcher of the study, Dr. Alessandro Rotta Loria, assistant professor of civil and environmental engineering at Northwestern University, based in Chicago, Illinois.   A Fish By Any Other Name: Inside The Effort To Bring ‘Copi’ To Dinner People who live near freshwater rivers or lakes are likely familiar with Asian Carp. The fish are not native to the U.S., but over the last few decades their populations have exploded in waterways like the Mississippi River Basin and the Illinois River. Over the last few years, there’s been a major PR campaign to move away from the name Asian Carp, in favor of a new name: “Copi.” The reason is two-fold: First, it joins a general trend of moving species’ names away from nationalistic associations, considering anti-Asian hate crimes during the COVID-19 pandemic. The other goal is to make the fish sound more delicious—creating a market that would incentivize fishing the Copi, hopefully reducing their populations. Joining Ira to talk about this is Jim Garvey, director of fisheries, aquaculture and aquatic sciences at Southern Illinois University in Carbondale, Illinois.   Thanks To A Mesozoic Hot Spot, We Finally Know How Old The Utahraptor Is Sometimes Jim Kirkland wishes he had been alive 150 years ago. That’s when the golden age of North American dinosaur discovery began, and early titans of paleontology crisscrossed the Rocky Mountains unearthing dozens of new species that became household names, from the Stegosaurus to the Brontosaurus to the Triceratops. But a close second to that era is what Kirkland gets to see these days in Utah. “I am doing that kind of discovery right now,” Kirkland said. “I’m just lucky to be alive.” Kirkland, Utah’s state paleontologist, uncovered and named the Utahraptor in 1993. The deadly predator became the official state dinosaur in 2018. To read the rest, visit sciencefriday.com.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It’s called Universe Of Art, and it’s all about artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.   The Oceans Are Getting Hotter—And Greener It’s hot out there, and more so than normal July weather. It’s estimated that more than 100 million Americans are under heat watches, warnings, and advisories, spanning the west coast and southern states. Not only is the land hot, but the oceans are, too. The water temperature near the Florida Keys this week reached 96.8 degrees Fahrenheit, just shy of the record for global ocean temperature. A warmer climate is having some visual effects on our oceans, too. The color of the ocean surface near the equator has gotten greener. The culprit? Phytoplankton, which are full of the pigment chlorophyll. Joining Ira to talk about these stories and other science news of the week is Rachel Feltman, Editor at Large for Popular Science and host of the podcast “The Weirdest Thing I Learned This Week,” based in Jersey City, New Jersey.   Understanding The Reasons For The Mental Health Crisis In Youth You’ve probably read the headlines about a spike in youth suicide rates, or about how social media and screen time are exacerbating teen anxiety and depression. Or maybe you read about the shortage of services for kids who need mental health treatment, waiting in emergency rooms for inpatient beds to open up. And of course the pandemic accelerated all of these issues, leaving kids who might have been already struggling without the support of friends and teachers in their school communities. Ira takes a closer look at what’s driving these trends with Dr. Patricia Ibeziako, associate chief for clinical services in the department of psychiatry and behavioral services at the Boston Children’s Hospital and associate professor of psychiatry at Harvard Medical School and Dr. Tami Benton, psychiatrist-in-chief in the department of child and adolescent psychiatry and behavioral sciences at the Children’s Hospital of Philadelphia and professor of psychiatry at the University of Pennsylvania’s Perelman School of Medicine.     Rewriting Sharks’ Big, Bad Reputation… For Kids It’s that time of year when sharks are on our minds. Summer is filled with Shark Week content, viral reports of attacks, and shrieks on the beach when someone spots a fin in the water… from a dolphin. But sharks don’t deserve this bad reputation. They are beautiful, fascinating, and—more than anything—the Earth needs them. A new children’s book called “Mother of Sharks,” by Melissa Cristina Márquez, aims to teach kids exactly that. Ira talks with Márquez, a shark scientist and wildlife educator, about the book, shark conservation, and why she loves sharks so much.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

How The Humble Beaver Shaped A Continent The American beaver, Castor canadensis, nearly didn’t survive European colonialism in the United States. Prized for its dense, lustrous fur, and also sought after for the oil from its tail glands, the species was killed by the tens of thousands, year after year, until conservation efforts in the late 19th century turned the tide. In her new book, Beaverland: How One Weird Rodent Made America, author Leila Philipp tells that tale—and the ecological cost of this near-extermination. But she also has good news: beavers, and their skillful engineering of waterways, have the potential to ease the fire, drought and floods of a changing climate. She talks to Ira about the powerful footprint of the humble beaver.   The Sweet Song Of The Largest Tree On Earth For this story, we’re taking a trip to south central Utah and into the Fishlake National Forest to visit the largest tree on earth, an aspen named Pando. The strange thing about Pando is that it doesn’t really look like the world’s biggest tree. It has rolling hills with thousands of tall, lean aspens swaying in the wind. But Pando is there, hiding in plain sight. All those tree trunks you see aren’t actually individual trees. Technically, they’re branches, and that’s because Pando is one massive tree—sprawling more than 100 acres, with 47,000 branches growing from it. There is a lot to learn about Pando, and our guests turned to sound to understand the tree better. Together, they created an “acoustic portrait” to hear all the snaps, splinters, and scuttles that happen in and around the tree. Ira talks with Jeff Rice, a sound artist and co-founder of the Acoustic Atlas at the Montana State University Library, and Lance Oditt, executive director of the non-profit Friends of Pando, which is dedicated to preserving the tree.   This $7 Violin May Be $7... But How Does It Sound? Stringed instruments can be a joy to the ears and the eyes. They’re handcrafted, made of beautiful wood, and the very best ones are centuries old, worth hundreds of thousands of dollars, or sometimes even millions. But there’s a new violin in the works—one that’s 3D-printed. It costs just a few bucks to print, making it an affordable and accessible option for young learners and classrooms. Dr. Mary-Elizabeth Brown is a concert violinist and the founder and director of the AVIVA Young Artists Program in Montreal, Quebec, and she’s been tinkering with the design of 3D-printed violins for years. She talks with Ira about the science behind violins, the design process, and how she manages to turn $7 worth of plastic into a beautiful sounding instrument.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Meet The Blind Birder Reimagining Accessibility In The Outdoors For many blind and low vision people, accessing outdoor spaces like parks can be challenging. Trails are often unsafe or difficult to navigate, signs don’t usually have Braille, guides generally aren’t trained to help disabled visitors, and so on. But nature recordist Juan Pablo Culasso, based in Bogata, Colombia, is changing that. He’s designed a system of fully accessible trails in the cloud forests of southwest Colombia that are specifically tailored to help visually disabled people connect with nature. The trails are the first of their kind in the Americas, and Culasso drew on his own experiences as a blind person and a professional birder to design the system. He talks with Maddie Sofia about how he designed the trail system and takes listeners on an adventure through the cloud forest he works in.   Listen To Ethereal Sounds Derived From Space You’ve probably heard that if you scream in space, no one will hear a thing. Space is a vacuum, so sound waves don’t have anything to bounce off of. But that doesn’t necessarily mean that space is silent. A team of researchers are taking data from a variety of telescopes and assigning them sounds, creating song-length sonifications of beloved space structures like black holes, nebulas, galaxies, and beyond. The album, called “Universal Harmonies” aims to bring galaxies to life and allow more people, such as those who are blind and low-vision, to engage with outer space. Guest host Flora Lichtman talks with two of the scientists behind “Universal Harmonies,” Dr. Kimberly Arcand, visualization scientist at NASA’s Chandra X-ray Observatory, and Dr. Matt Russo, astrophysicist and musician at the University of Toronto. Listen to a selection of the ethereal sonifications of “Universal Harmonies.”   Why You Should Thank Your Local Wasp It’s late in the summer, meaning any outdoor gathering with food and drink has a good chance of being visited by a pesky, buzzing wasp. But don’t reach for that rolled-up newspaper or can of bug spray. The wasps in your world play an important role that’s often overlooked. Far beyond the social hornets and yellowjackets people think about when they picture a wasp, the wasp world includes thousands of species. Some are parasitic, injecting their eggs into unwilling prey. Others hunt, either paralyzing prey for their young to feed on, or by bringing bits of meat back to a nest for their young. Some are strictly vegetarian, and live on pollen. Some are needed for the pollination of figs and certain species of orchids. Dr. Seirian Sumner, a behavioral biologist at University College London, says that if people understood the services provided by wasps the same way that they understand the need for bees, they might be more willing to overlook an occasional wasp annoyance—and might even be thankful for the wasps in their lives. In her book, "Endless Forms: The Secret World of Wasps," Sumner makes the case for wasps as nature’s pest control agents, as important pollinators that should be celebrated. And the pesky yellowjacket at your picnic? It’s probably being driven by a late-summer shift in functions within the nest, in which many of the workers die off and are replaced by sexual brood. Earlier in the year, worker wasps can bring bits of meat to the developing young, which reward them with sugary secretions. But later in the season, that food source dries up—so visiting wasps are probably searching for a bit of sugar just to get by. “Watch the wasp, see what she wants at your picnic,” Sumner advises. “Is she going for sugar, or is she going for some meat? Whatever you can work out that she wants, give her a little bit of it. Make a little wasp offering.” Sumner joins SciFri producer Charles Bergquist to talk about wasps, and make a case for why you should be thankful for the wasps in your neighborhood.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

How Fungi Are Breaking The Binary: A Queer Approach To Ecology As Pride month comes to a close, many people are reflecting on the past, present, and future of the LGBTQIA+ community. An interdisciplinary group of scientists, researchers, and artists are using queerness as a lens to better understand the natural world, too. It’s a burgeoning field called queer ecology, which aims to break down binaries and question our assumptions of the natural world based on heterosexuality. For example, there are plenty of examples of same-sex animal pairings in the wild, like penguins, chimps, and axolotls. There are also plants that change sexes, or have a combination of male and female parts, like the mulberry tree. But perhaps the most queer kingdom of all is fungi. Mushrooms are not easily forced into any type of binary. For example, the Schizophyllum commune, or the split gill mushroom, has 23,000 sexes, making it somewhat of a queer icon in the field of mycology. SciFri producer Kathleen Davis talks with Patty Kaishian, incoming curator of mycology at the New York State Museum, about how fungi might help us expand our understandings of sexuality, identity, and hierarchy. They also discuss how queer ecology can help people of all sexualities reconnect with the natural world.   Scientists Think Cloning Could Help Save Endangered Species Earlier this year, a baby Przewalski’s horse was born at the San Diego Zoo. But this foal isn’t any ordinary foal, he’s a clone. He’s the product of scientists aiming to save his dwindling species using genetics. This endangered horse species once roamed Europe and Asia, but by the 1960, threats like poaching, capture, and military presence drove the horses to extinction in the wild. Conservationists raced to save this wild horse through captive breeding programs, but with a population so small, there just wasn’t enough genetic diversity to grow a healthy herd. But with careful genetic management, the Przewalski’s horse’s population is now nearly 2,000 horses strong, and this new foal will one day help boost his species’ genetic diversity even more. Producer Kathleen Davis talks with Dr. Oliver Ryder, conservation geneticist at the San Diego Zoo Wildlife Alliance, about cloning Przewalski’s horse, and how doing so will infuse genetic diversity into the small population. Then Davis talks with Dr. Sam Wisely, professor of wildlife ecology and conservation at the University of Florida, about how cloning can help other endangered species, like the black-footed ferret, and the ethics involved in cloning.   Twenty Years On, The Little CubeSat Is Bigger Than Ever The story of the CubeSat started with a big problem for one Cal Poly professor. “It was actually a critical problem for us, but it was a problem that nobody else cared about,” said Jordi Puig-Suari, an Emeritus Professor from Cal Poly San Luis Obispo. He co-invented the CubeSat with Bob Twiggs from Stanford. Puig-Suari is now retired and has spent the last four years sailing around the world with his wife. I talked to him over Zoom from somewhere along that journey. He takes me back two decades to his time as a professor at Cal Poly where he was hired to develop their aerospace engineering department. Read the rest of this article at sciencefriday.com.   Remembering Engineer And Author Henry Petroski Last week the world watched as rescuers from across the globe searched for a tiny experimental submersible that had disappeared, carrying five people on a dive to the wreck of the R.M.S. Titanic. That search turned out, sadly, to be in vain. The Titan submersible is believed to have imploded in the North Atlantic, killing all aboard. The intersection of design, engineering, and human risk-taking is a recurring theme throughout modern history. One of the finest chroniclers of those tales was Henry Petroski, who died earlier this month at the age of 81. He was a professor of engineering and history at Duke University, and author of many books. Petroski was known for his critical eye and insightful view of various missteps and faults in pursuit of progress—from improving bridge designs for safety to the tragic loss of the space shuttles Challenger and Columbia. Some called Petroski the “poet laureate of technology” for his prolific writings on everything from the design of bridges to the fabrication of pencils. In this recording from 2012, Ira Flatow spoke with the late professor Petroski about engineering failures, and humanity’s follies.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Scientists Can Now Hear The Background Hum Of The Universe For the first time ever, scientists have heard the “low pitch hum” of gravitational waves rippling through the cosmos. It’s this ever-present background noise set off by the movement of massive objects—like colliding black holes—throughout the universe. Scientists have theorized that it’s been there all along, but we haven’t been able to hear until now. So what does this hum tell us about our universe? SciFri producer Kathleen Davis talks with science writer Maggie Koerth about this discovery, as well as other science news of the week. They chat about the possibility of an icy planet hiding in the Milky Way, air quality problems due to wildfire smoke, an experimental weight loss drug that’s currently being tested, if our human ancestors were cannibals, and how dolphin moms use baby talk with their calves.   Celebrating The Weird, Wonderful World Of Cephalopods Every year, Cephalopod Week reminds us of the fascinating and weird world of these sea creatures. And in this segment, recorded live at the University of Miami’s Rosenstiel School of Marine, Atmospheric, and Earth Science Auditorium, two cephalopod scientists share new research about our squishy sea-faring neighbors, how climate change is affecting squids and octopuses, and why they love working with them. Ira Flatow talked to Dr. Lynne Fieber PhD., professor of marine biology and ecology who has studied the nervous systems of all types marine invertebrates including cephalopod and sea slugs, and Dr. Andrea Durant Ph.D., a postdoctoral fellow in the Grosell Environmental Physiology and Toxicology Lab, who studies how tiny glass squid live in a rapidly-changing ocean.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It's called Universe Of Art, and it features conversations with artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.    When The Promise Of Social Media Becomes Perilous Despite social media’s early promises to build a more just and democratic society, over the past several years, we’ve seen its propensity to easily spread hate speech, misinformation and disinformation. Online platforms have even played a role in organizing violent acts in the real world, like genocide against the Rohinga people in Myanmar, and the violent attempt to overturn the election at the United States capitol. But how did we get here? Has social media fundamentally changed how we interact with the world? And how did big tech companies accumulate so much unchecked power along the way?   Remembering Roger Payne, Who Helped Save The Whales Americans haven’t always loved whales and dolphins. In the 1950s, the average American thought of whales as the floating raw materials for margarine, animal feed, and fertilizer—if they thought about whales at all. But twenty-five years later, things changed for cetaceans in a big way. Whales became the poster-animal for a new environmental movement, and cries of “save the whales!” echoed from the halls of government to the whaling grounds of the Pacific. What happened? Shifting attitudes were due, in large part, to the work of scientist Roger Payne, who died earlier this month at the age of 88. His recordings helped to popularize whalesong, and stoked the public imagination about intelligent underwater creatures who used vocalizations to communicate. In 2018, our podcast “Undiscovered” explored the history of Payne’s work, and that of his colleagues. We’re featuring this episode as a way of remembering his life and groundbreaking work.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

We have a new podcast! It's called Universe Of Art, and it features conversations with artists who use science to bring their creations to the next level. Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.    A See-Through Squid Success Story Adult octopuses have about 500 million neurons, which is about as many neurons as a dog. Typically, more neurons means a more intelligent and complex creature. But it’s a bit more complicated than that. Unlike dogs, or even humans, octopuses’ neurons aren’t concentrated in their brains—they’re spread out through their bodies and into their arms and suckers, more like a “distributed” mind. (Scientists still haven’t quite figured out exactly why this is.) And that’s just the tip of the iceberg, in terms of unanswered cephalopod questions. Now, researchers have successfully bred a line of albino squid that were first engineered using CRISPR-Cas9 gene editing technology, creating a see-through squid. Their unique transparency allows scientists to more easily study their neural structure, and a whole lot more. SciFri experiences manager Diana Plasker talks with Joshua Rosenthal, senior scientist at the University of Chicago’s Marine Biological Laboratory, based in Woods Hole, Massachusetts, about this see-through squid success story. When Eye-Grabbing Results Just Don’t Pan Out You know the feeling — you see a headline in the paper or get an alert on your phone about a big scientific breakthrough that has the potential to really change things. But then, not much happens, or that news turns out to be much less significant than the headlines made it seem. Journalists are partially to blame for this phenomenon. But another guilty culprit is also the scientific journals, and the researchers who try to make their own work seem more significant than the data really supports in order to get published. Armin Alaedini, an assistant professor of medical sciences at Columbia University Medical Center in New York, recently co-authored a commentary on this topic published in The American Journal of Medicine. He joins Ira and Ivan Oransky — co-founder of Retraction Watch and a medical journalism professor and Distinguished Writer In Residence at New York University — to talk about the tangled world of scientific publishing and the factors that drive inflated claims in publications.     How Art Can Help Treat Dementia And Trauma We might intrinsically know that engaging with and making art is good for us in some way. But now, scientists have much more evidence to support this, thanks in part to a relatively new field called neuroaesthetics, which studies the effects that artistic experiences have on the brain. A new book called Your Brain On Art: How The Arts Transform Us, dives into that research, and it turns out the benefits of the arts go far beyond elevating everyday life; they’re now being used as part of healthcare treatments to address conditions like dementia and trauma. Universe of Art host D. Peterschmidt sits down with the authors of the book, Susan Magsamen, executive director of the International Arts + Mind Lab at the Pederson Brain Science Institute at Johns Hopkins University, and Ivy Ross, vice president of design for hardware products at Google, to talk about what we can learn from neuroaesthetic studies, the benefits of a daily arts practice, and the kinds of art they both like making.   Testing Mars Rovers In Utah’s Red Desert Take a 20-minute drive down Cow Dung Road, outside of Hanksville, Utah, and you’ll stumble across the Mars Desert Research Station. This cluster of white buildings—webbed together by a series of covered walkways—looks a little alien, as does the red, desolate landscape that surrounds it. “The ground has this crust that you puncture through, and it makes you feel like your footprints are going to be there for a thousand years,” said Sam Craven, a senior leading the Brigham Young University team here for the University Rover Challenge. “Very bleak and dry, but very beautiful also.” This remote chunk of Utah is a Mars analogue, one of roughly a dozen locations on Earth researchers use to test equipment, train astronauts and search for clues to inform the search for life on other planets. While deployed at the station, visiting scientists live in total isolation and don mock space suits before they venture outside. To read the rest, visit sciencefriday.com.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Curly Hair Keeps Your Scalp Cooler According to a fascinating new study, curly locks are better than straight hair at keeping your scalp cool. Researchers shone bright lights on three different manikins—one with no hair, one with loosely curled hair and another with tight curls. Solar radiation bounced off the tightly curled hair, and less heat reached the manikin’s scalp than the straight haired manikin. The manikin with loose curls was right in the middle. The research is part of an effort to better understand the role of hair texture in human evolution, as humans are the only mammals with the majority of body hair atop our heads. Ira talks with Dr. Tina Lasisi, a postdoctoral researcher in the department of quantitative and computational biology at the University of Southern California, and incoming assistant professor of Anthropology at the University of Michigan.   Unprecedented Avian Flu Outbreak Continues Avian influenza has been circulating for decades among wild birds, but the US is now experiencing the worst outbreak in its history. That’s because of a specific strain of highly pathogenic avian influenza, which has left around 60 millions birds—mostly poultry—dead. This has implications for us all, whether you’re frustrated about the price of eggs, worried about your backyard chickens, or concerned about yet another threat to public health. In this live call-in, Ira talks with Ashleigh Blackford, the California Condor Coordinator at the US Fish & Wildlife Service about the initiative to vaccinate California condors—the first of its kind to vaccinate any bird. Then Ira explores what this outbreak means for other wildlife, poultry, and for us. He talks with Dr. Kristy Pabilonia, professor and director of the Veterinary Diagnostics Laboratories at Colorado State University, and Dr. Richard Webby, director of the WHO’s Collaborating Center for Studies on the Ecology of Influenza in Animals and Birds and a researcher at St. Jude’s Children’s Research Hospital.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Why Have Ocean Temperatures Spiked? Sea surface temperatures in the North Atlantic have risen dramatically in recent weeks, to as much as 0.5 degrees Celsius warmer than the previous record—and over 1 degree C warmer than average temperatures from 1982 to 2011. The reason for the unusually toasty waters isn’t entirely clear. Some climatologists attribute part of the rise to an El Niño ocean circulation pattern this year, replacing the La Niña pattern that had been suppressing temperatures. Other factors may include a decline in atmospheric dust from the Sahara, and atmospheric circulation patterns that are allowing warm surface water to stay in place longer. The warmer temperatures aren’t just limited to the North Atlantic, however—for the past three months, global average sea surface temperatures have also been reaching new highs. Casey Crownhart, a climate reporter at MIT Technology Review, joins Ira to talk about the warming trend, and other stories from the week in science, including accusations of body part sales from the Harvard Medical School morgue, studies of the economics of heat pumps, and a lawsuit brought by youth in Montana over global warming.   The Best Summer Books, According To Two Science Writers Summer is one of the best times to crack open a book and read the hours away, according to Jaime Green and Annalee Newitz. The two science writers are voracious readers, and they’ve compiled a list of their summer reading recommendations for Science Friday listeners. Green and Newitz join Ira from New Britain, Connecticut and San Francisco, California respectively, to discuss their favorite nonfiction and fiction books for the summer, and take questions from listeners. To read the full list of summer book recommendations, visit sciencefriday.com.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Exposing Texas’ Excess Emissions Problems In the early hours of August 22, 2020, Hurricane Laura was still just a tropical storm off the coast of the Leeward Islands in the Caribbean. But effects from the monstrous storm, which would ultimately take at least 81 lives, were already being felt on the U.S. Gulf Coast. As rain poured down on the Sweeney refinery in Old Ocean, Texas, that afternoon, two processing units failed, releasing nearly 1,400 pounds of sulfur dioxide, which can cause trouble breathing, and other chemicals. Over the next few days, Laura siphoned up moisture from the warm waters of the Gulf of Mexico and transformed into a Category 1 hurricane. In Texas, chemical plants began shutting down, hurriedly burning off unprocessed chemicals and releasing vast amounts of pollution in anticipation of the storm making landfall. On August 24, Motiva’s Port Arthur refinery released 36,000 pounds of sulfur dioxide, hydrogen sulfide, and other noxious pollutants. The next morning, Motiva began purging chemicals its plant had been processing, emitting nearly 48,000 pounds of carbon monoxide and propylene, among other pollutants. The following day, a Phillips 66 refinery in southwest Louisiana shut down, releasing more than 1,900 pounds of sulfur dioxide. Then, as gale-force winds swept through coastal communities and the relentless rain poured down, the chemical facilities increasingly malfunctioned. To read the rest, visit sciencefriday.com.   A Scientist’s Catalog Of 100 Days Under The Sea In February, Dr. Joe Dituri put on his scuba gear, dove 30 feet below the surface, and entered a 100-square-foot underwater lodge. This former US Navy diving officer didn’t come up again for air until June 9, spending 100 days underwater. And even before the end of his stay, he broke the record for living underwater. He did all of this in the name of science—to understand how the human body handles long-term exposure to pressure. This mission is called Project Neptune 100, and because those 100 days are finally up, we’re taking a deep dive into the underwater habitat to hear what is to be learned from so many days below the waves. We recorded this interview with Dituri on Day #94 with a live virtual audience, whom you’ll hear from later. Ira talks with Dr. Deep Sea, aka Dr. Joe Dituri, a biomedical engineer and associate professor at the University of South Florida, and Dr. Sarah Spelsberg, wilderness emergency specialist and the medical lead for Project Neptune 100 coming to us from the Maldives. To see some photos of Dr. Dituri's undersea life, visit sciencefriday.com.   Unmasking Owls’ Mysteries Don’t let owls’ cute faces fool you—they’re deadly predators. This duality is part of what makes them so mysterious to humans. And their contradictions don’t end there: Their hoots are among the most distinctive bird sounds, yet owls are nearly silent when gliding through the air to catch their prey. Scientists are learning more about why owls are such good predators—how their hearing and night vision are so sharp, and their flight so silent. With new technology, researchers are also decoding owl communications, increasing our understanding of their social structures and mating habits. John Dankosky talks about all things owls with Jennifer Ackerman, author of the new book, What An Owl Knows: The New Science of the World’s Most Enigmatic Birds.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Canadian Wildfire Smoke Drifts Across The United States This week, smoke from Canadian wildfires drifted south, enveloping the Northeastern United States, casting an ominous orange glow. The smoke continued spreading outwards to the Southeast and to the Midwest. While climate change is extending and worsening the Canadian wildfire season, it’s still rare for this many fires, so early in the season. Ira talks with Katherine Wu, staff writer at The Atlantic, about the latest on the Canadian wildfires and other top news stories of the week, including; a new type of cat contraception, drilling into the Earth’s mantle, and a ‘virgin’ crocodile birth.   30 Years Later, ’Jurassic Park’ Still Inspires On June 11th, 1993, what would become one of the biggest movies of all time was released in theaters: Jurassic Park. Based on the novel by Michael Crichton, the film is about people’s belief that they can control nature. Wealthy businessman John Hammond creates a dinosaur nature park. Things go awry quickly. Electric fences break down, dinosaurs get loose, and people are eaten. At the time of its release, the film became the highest-grossing movie of all time. In the decades since it came out, the film has spawned a multi-movie franchise, amusement park rides, video games, and every type of merchandise imaginable. The movie also had a tremendous impact on visual effects, both computer animated and practical, which are still seen today in the media. When the first Jurassic Park movie came out, many of the paleontologists of today were children—or not even born yet. Ira speaks with a trio of paleontologists about the film’s impact on them as kids, and its continuous use as an educational tool to inspire young dino enthusiasts: Riley Black, Steve Brusatte and Yara Haridy.   A Biotech Offensive Against Disease-Carrying Mosquitoes Mosquitoes are the primary spreaders of some highly dangerous diseases for people: The insect spreads diseases like yellow fever, dengue fever, malaria, and zika, which kill millions of people globally each year. There’s one species of mosquito that’s invasive to the United States, and whose populations are spreading: Aedes aegypti, which is recognizable by black and white markings on its legs. Lee County, Florida is taking aim at this species with biotechnology. Their strategy is to release 30,000 sterilized male mosquitoes into the environment, who will go on to mate with females, who then will release eggs that do not hatch. Male mosquitoes don’t bite, only females do. The goal of this method is to decrease the Aedes aegypti population with every generation. Biotechnology to combat this mosquito species is nothing new. Ira speaks with reporter Cary Barbor at WGCU in Fort Myers about this strategy in her city. He also speaks with Dr. Omar Akbari, professor of cell and developmental biology at UC San Diego, about his research on using CRISPR to alter Aedes aegypti into harmless insects.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Tomato Breeding Project Fueled By Over 1,000 Backyard Gardeners In 2005, gardeners Craig LeHouiller and Patrina Nuske-Small created the Dwarf Tomato Project. They wanted to preserve the flavor and beauty of heirloom tomatoes, without taking up too much space. They started crossbreeding heirloom tomatoes with smaller dwarf tomato plants. To do so, they enlisted volunteers from all over the world. Over 1,000 people have participated so far. You can even buy the seeds and plant them in your own garden! Ira talks with the project’s co-founder, gardener and author, Craig LeHoullier, based in Hendersonville, North Carolina.   Southwestern States Break The Dam On Water Stalemate Southwestern states have been aware for decades that their use of Colorado River water is not sustainable. Forty million people depend on the watershed across seven states, several tribes, and northern Mexico. After intense pressure from the federal government, Arizona, California, and Nevada presented a plan last month to cut water use in these states. While the proposal isn’t final, it’s an important step in a long stalemate among southwestern states hesitant to use less water. The three states propose cutting 3 million acre-feet in water use through 2026—about ten percent of their total water allocation. The federal government plans to spend $1.2 billion to pay water users for the cuts. Joining Ira to break down what this plan means for southwest states is Dr. Sharon Megdal, director of the University of Arizona’s Water Resources Research Center in Tucson, and Luke Runyon, managing editor and reporter for KUNC, in Grand Junction, Colorado.   Tracking The Saguaro Cacti Decline One of the most iconic symbols of the American Southwest is the saguaro cactus—the big, towering cactus with branching arms. Saguaro are the most studied variety of cactus, yet there’s still much we don’t know about them. Once a decade, researchers from the University of Arizona survey plots of roughly 4,500 saguaro to assess the health of the species. This past year there was a record low number of new cacti growing—the fewest since they started decadal surveys in 1964. What’s driving this decline? Ira talks about the state of saguaro cacti with Peter Breslin, postdoctoral researcher at the University of Arizona’s Desert Laboratory on Tumamoc Hill, based in Tucson, Arizona.   These Conservation Scientists Are Keeping The Sonoran Desert Diverse Many Americans might be surprised just how expansive and diverse the Sonoran Desert actually is. The 100,000 square-mile desert stretches across the border between the U.S. and Mexico, with the northernmost regions in southern California and Arizona making up just one third of the desert. The sweeping terrain is home to thousands of plant and animal species and contains every existing biome in the world—from timber tundras to rolling grasslands to arid desert basins. The majority of the Sonoran is within the Baja California peninsula and the Mexican state of Sonora, which includes the Gulf of California. The gulf alone is teeming with life—famed ocean explorer Jacques Cousteau once called the desert, “the world’s aquarium.” Ira talks about the rich biodiversity of the Sonoran Desert and the importance of scientific collaboration across the border with Ben Wilder, director and co-founder of Next Generation Sonoran Desert Researchers, and Michelle María Early Capistrán, a conservation fellow at Stanford University and board member of the Next Generation of Sonoran Desert Researchers.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Could Restoring Animal Populations Store More Carbon? Did you know that land and ocean ecosystems absorb about half of the carbon dioxide we emit each year? But what if the earth had the capacity to absorb even more? With the help of some furry, scaly, and leathery critters, maybe it can. A recent study in the journal Nature Climate Change claims that by restoring the populations of just a handful of animals—like gray wolves, bison, and sea otters for example—the Earth could capture around 6.41 more gigatons of CO2 each year. This idea of restoring wildlife is called rewilding. Ira talks with the co-author of this study, Dr. Trisha Atwood, an associate professor at Utah State University, based in Logan, UT. They chat about what critters make the rewilding list, and how they fit into the carbon cycle.   Allergy Season Is Blooming With Climate Change Spring is in the air, and for many people that means allergy season is rearing its ugly head. If it feels like your allergies have recently gotten worse, there’s now data to back that up. New research shows that since 1990, pollen season in North America has grown by 20 days and gotten 20% more intense, with the greatest increases in Texas and the Midwest. This is because climate change is triggering plants’ internal timing to produce pollen earlier and earlier. It’s a problem that’s expected to get worse. SciFri producer Kathleen Davis speaks with William Anderegg, assistant professor at the University of Utah’s School of Biological Sciences about pollen counts, and pollen as a respiratory irritant.   Why This Scientist Shares Vulnerable Career Moments Dr. Rachel Lupien, a paleoclimatologist at Aarhus University, makes it a point to be honest about the challenges she runs into at work. She hopes that other scientists can learn from them. So last year, when a paper she wrote was rejected from journals five times, she tweeted about the experience.   While the responses ranged from supportive replies to harsh emails, Rachel says that it feels good to talk about professional headaches with peers who understand. Digital producer Emma Gometz interviews Rachel about why it’s important to be honest about setbacks as a scientist, and how transparency helps all professional scientists do better work. Read more personal stories from scientists, including Rachel’s experience working as a paleoclimatologist across the world, and building mentorship networks of her own, on SciFri’s six-week automated email newsletter, “Sincerely, Science.” To learn more about Sincerely Science and read Rachel's paper, visit sciencefriday.com.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Orcas Are Attacking Boats Near Spain. Scientists Don’t Know Why This Thursday, the Supreme Court restricted the scope of the Clean Water Act pertaining to wetlands, in a 5-4 vote. This could affect the Environmental Protection Agency’s power to protect certain kinds of wetlands, which help reduce the impacts of flooding by absorbing water, and also act as natural filters that make drinking water cleaner. Justice Brett Kavanaugh joined the court’s three liberal members in the dissent, writing that the decision will have, “significant repercussions for water quality and flood control throughout the United States.” Plus, earlier this month, three orcas attacked a boat, leading to its sinking. This is the third time an incident like this has happened in the past three years, accompanied by a large rise of orcas attacking boats near the Strait of Gibraltar. Scientists are unsure of the cause. One theory is that these attacks could be a fad, led by juvenile orcas in the area, a documented behavior in this subpopulation of the dolphin family. They could also be a response to a potential bad encounter between boats and orcas in the area. Science Friday’s Charles Bergquist talks with Sophie Bushwick, technology editor for Scientific American, about these and other stories from this week in science news, including a preview of a hot El Niño summer, an amateur astronomer who discovered a new supernova, and alleviating waste problems by using recycled diapers in concrete.     A Famous Sled Dog’s Genome Holds Evolutionary Surprises Do you remember the story of Balto? In 1925, the town of Nome, Alaska, was facing a diphtheria outbreak. Balto was a sled dog and a very good boy who helped deliver life-saving medicine to the people in the town. Balto’s twisty tale has been told many times, including in a 1990s animated movie in which Kevin Bacon voiced the iconic dog. But last month, scientists uncovered a new side of Balto. They sequenced his genes and discovered the sled dog wasn’t exactly who they expected. The study published in the journal Science, was part of a project called Zoonomia, which aims to better understand the evolution of mammals, including our own genome, by looking at the genes of other animals—from narwhals to aardvarks. Guest host Flora Lichtman talks with Dr. Elinor Karlsson, associate professor in Bioinformatics and Integrative Biology at the UMass Chan Medical School and director of Vertebrate Genomics at the Broad Institute of MIT and Harvard; Dr. Katie Moon, post-doctoral researcher who led Balto’s study; and Dr. Beth Shapiro, professor of ecology and evolutionary biology at UC Santa Cruz, who coauthored the new study on Balto and another paper which identified animals that are most likely to face extinction.     The Long And Short Of Telomere Activity Telomeres are repeating short sequences of genetic code (in humans, TTAGGG) located on the ends of chromosomes. They act as a buffer during the cell replication process. Loops at the end of the telomere prevent chromosomes from getting inadvertently stuck together by DNA repair enzymes. Over the lifetime of the cell, the telomeres become shorter and shorter with each cell division. When they become too short, the cell dies. Telomere sequences weren’t thought to do much else—sort of like the plastic tip at the end of a shoelace. Writing in the Proceedings of the National Academy of Sciences, researchers now argue that telomeres may actually encode for two short proteins. Normally, those proteins aren’t released into the cell. However, if the telomere is damaged—or as it gets shorter during repeated cell replication cycles—those signaling proteins may be able to leak out into the cell and affect other processes, perhaps altering nucleic acid metabolism and protein synthesis, or triggering cellular inflammation. Jack Griffith, one of the authors of the report and the Kenan Distinguished Professor of microbiology and immunology at the UNC School of Medicine, joins SciFri’s Charles Bergquist to talk about the idea and what other secrets may lie inside the telomere.   Philadelphia’s Mütter Museum Takes Down Digital Resources Robert Pendarvis gave his heart to Philadelphia’s Mütter Museum. Literally. He has a rare condition called acromegaly, where his body makes too much growth hormone, which causes bones, cartilage and organs to keep growing. The condition affected his heart, so much so that a heart valve leaked. He had a heart transplant in 2020. Pendarvis thought his original heart could tell an important story, and teach others about this rare condition, which is why he was determined to put it on display at the Mütter Museum. The Mütter Museum is a Philadelphia institution, a medical museum that draws hundreds of thousands of visitors to its rooms filled with anatomical specimens, models, and old medical instruments. The place is not for the squeamish. Display cases show skulls, abnormal skeletons, and a jar containing the bodies of stillborn conjoined twins. Pendarvis thought it would be the perfect home for his heart — and more. To read the rest, visit sciencefriday.com   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Ivory-Billed Woodpecker Debate Keeps Pecking Away Every so often, there’s a claim that the ivory-billed woodpecker is back from the dead. Pixelated videos go viral, blurry photos make the front page, and birders flock to the woods to get a glimpse of the ghost bird. Last week, a controversial paper claimed there’s reason to believe that the lost bird lives. The authors say they have evidence, including video footage, that the bird still flies. The paper is ruffling feathers among the birding and research community. This debate has been going on for decades, but the American Birding Association categorizes the bird as “probably or actually extinct,” and its last verified sighting was in 1944. So is it any different this time? And what do we make of the claims that keep cropping up? Guest host Flora Lichtman talks all things ivory-billed with Michael Retter, editor of the magazines North American Birds and Special Issues of Birding, from the American Birding Association.   Tracking Pain In Your Brain When you stub your toe, that pain is registered by the peripheral nervous system. It shoots off signals that travel up your spinal cord and to your brain, where the signals tell you, “Hey, your toe hurts. Take care of it.” But chronic pain—defined as lasting three months or more—is processed differently, and your nerves are constantly firing pain signals to your brain. Chronic pain is complex, and a lot of its basics are still unknown. But a new study from this week discovered another piece of the pain puzzle: the brain signals that cause chronic pain and the region they are processed in. Researchers hope that this is the first step in developing a brain stimulation therapy that can intercept those chronic pain signals and bring relief to patients. Guest host and SciFri director Charles Bergquist talks with lead author Dr. Prasad Shirvalkar, neurologist and associate professor at the University of California San Francisco, about this new paper.   What Can We Learn From A Woman Who Feels No Pain? There are a select few humans that can’t feel any pain. Really. One of those people is Jo Cameron, who didn’t experience any pain during childbirth or need any painkillers after a hip replacement. She’s also never been anxious or afraid. Researchers have been studying Jo Cameron and her brain in an effort to better understand her sensory experience. This week, researchers published a new study that looks at the genes and mutations responsible for Jo’s pain free existence. They hope to use what they learn to come up with better pain management treatments for the rest of us. Guest host and Science Friday Senior Producer Charles Berquist talks with Andrei Okorokov, associate professor at the Wolfson Institute for Biomedical Research at the University of College London, about this fascinating new research.   Turning To Space While Processing Grief When astronomers Michelle Thaller and Andrew Booth met, it was love at first sight. The couple married in 1994, becoming a power couple in the world of space and physics research. In 2019, the couple received shocking news: Booth was diagnosed with cancer in the brain. He passed away within a year of his diagnosis. The death of a partner is one of the most devastating things a person can go through. Thaller felt unmoored, and like Earth was not her planet anymore. To help her move forward, Thaller turned to the universe for solace. Thaller speaks with guest host Flora Lichtman about how the mysteries of the universe have made processing grief a little easier, and taking space and time with a grain of salt.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Can Science Find An Antidote to Americium? With some poisons, there’s an antidote — something you can take to block the effects of the poison, or to help remove it from your body. But when the harmful chemical is a radioactive element, options are limited. Iodine pills can be used to help block radioactive iodine I131 from being absorbed by the thyroid, but there aren’t many other drugs that can help deal with contamination with other radioactive substances. One of the two existing medications can only be delivered via IV in a clinic. This week, the NIH announced the start of an early clinical trial for an oral drug delivered as a tablet that could potentially be used to bind and remove radioactive elements including plutonium, uranium and neptunium from the body. Rachel Feltman, editor at large at Popular Science, joins Ira to talk about that trial and other stories from the week in science, including an experimental universal flu vaccine, research into the amount of trace DNA humans shed every day, and an update on the planet Saturn’s moon count.   Debunking Common Myths About Being Fat Weight loss is big business. Americans spend roughly $60 billion each year trying to lose weight, forking over cash for supplements, diet plans, and gym memberships. Yet somewhere between 90 to 95% of diets fail. Much of what we think we know about the relationship between weight and health is based on a series of assumptions that don’t always match up with the latest science. Science Friday producer, Shoshannah Buxbaum talks with Aubrey Gordon, co-host of the podcast Maintenance Phase and author of the recent book “You Just Need To Lose Weight” and 19 Other Myths About Fat People, about the history of the Body Mass Index or BMI. She discusses why the word “obesity” is tangled up in stereotypes about fat people, the flaws in commonly cited mortality statistics, and how anti-fat bias translates into worse healthcare for fat people. Read an excerpt of “You Just Need To Lose Weight” and 19 Other Myths About Fat People here.   What To Do When 500-1,000 Crows Roost In Your Neighborhood Laura Young was at a breaking point when she submitted a post titled “Request: Make 500-1,000 crows leave my street alone” to the subreddit r/lifeprotips in January. “I think you can tell that I was feeling very frustrated and running out of options and I clearly needed help,” she said. Starting last October, Laura’s neighborhood in Baltimore was the site of a massive crow roost. And unlike past years’ roosts, which usually only last a few weeks with a few dozen crows, this one showed no signs of leaving. “The numbers that they’ve attracted ever since then are unbelievable,” she said. “I mean, we’re at the point where it is frightening to walk out at night.” According to Laura, hundreds of them filled the trees in the park outside her apartment. “And they’re all screaming,” she said. “It is loud enough to wake you up indoors with all the windows closed. I don’t think anyone on my block has slept past 6:00am in three months.” There was the noise, and then there was the poop: coating the streets, the buildings, and the cars. “It is just disgusting. I’ve never spent so much money on car washes in my entire life,” she laughed. To read the rest, visit sciencefriday.com.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Science Says Eat More Beans Beans are delicious, high in protein, inexpensive, efficient to grow, and an absolute staple in so many cuisines. So why don’t Americans eat more of them? The average American eats 7.5 pounds of beans annually, which is only a few cans of beans every year. The answer is complicated, but one thing is sure: Beans have a PR problem. Ira talks with Julieta Cardenas, a Future Perfect Fellow at Vox, who reported this story. If you’re looking to chef it up, read some of the SciFri staff’s favorite bean recipes.    The World According To Sound: Feeding Time In this story from our friends at The World According to Sound, we’ll take a sonic trip to Yellowstone National Park. You’ll hear the sounds of two grizzlies feasting on a bison. It’s very rare that a bear can take down an adult bison, but they will chow down on animals that are already dead, like if they were killed by wolves or a car. The World According to Sound is a live audio show, online listening series, and miniature podcast, created by Chris Hoff and Sam Harnett.   Bees Have Feelings, Too Few pollinators have the charisma of bees, so much so that the phrase “save the bees” has become a calling card for those who consider themselves ecologically-conscious. There are more than 21,000 species of bees, ranging from the very recognizable bumblebees to the vibrant blue and green Augochloropsis metallica. Pollination ecologist Stephen Buchmann has studied bees for nearly fifty years, learning about everything from their natural behaviors to how they respond to puzzles. All of this has led him to a fascinating conclusion: bees are sentient, and they have feelings. Stephen joins Ira from Tucson, Arizona to talk about his new book, What a Bee Knows. Read an excerpt from the book here.   Pinning Down The Origin Of Butterflies One of the highlights of being outdoors in warmer weather is spotting a delicate, colorful butterfly exploring the landscape. There are over 19,000 different species of butterflies around the world—and all of them evolved from some enterprising moth that decided to venture out in the daytime, around 100 million years ago. But just where that evolutionary fork in the road occurred has been a matter of scientific debate, with many researchers positing a butterfly origin in Australia or Asia. Writing this week in the journal Nature Ecology and Evolution, researchers report on a new phylogenetic map of butterfly evolution, a lepidopteran family tree, combining genetic data with information from fossils, plants, and geography to trace back the origin and spread of butterflies. They find that butterflies likely split from moths in what is now Central or North America, before spreading to South America, crossing oceans to Australia and Asia, and eventually spreading to Europe and Africa. Dr. Akito Kawahara, professor, curator, and director of the McGuire Center for Lepidoptera and Biodiversity at the Florida Museum of Natural History and one of the authors of the report, joins Ira to talk about the findings and share some other surprising facts about butterflies.   To stay updated on all-things-science, sign up for Science Friday's newsletters. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Star Trek’s Science Advisor Reveals The Real Astrophysics On Screen Few pop culture properties have lasted quite as long as Star Trek. A dozen Star Trek television shows have aired over the last sixty years—not to mention countless movies, novels, and comic books. Science concepts have always been integral to the Star Trek franchise: from warp speed travel to dilithium. But how much does the series actually accurately depict? Ira speaks with astrophysicist Dr. Erin Macdonald, science consultant for Star Trek about the legacy of the franchise, and how accurate the science is within the series.   Listen To The Largest Tree On Earth For this story, we’re taking a trip to south central Utah and into the Fishlake National Forest to visit the largest tree on earth, an aspen named Pando. The strange thing about Pando is that it doesn’t really look like the world’s biggest tree. It has rolling hills with thousands of tall, lean aspens swaying in the wind. But Pando is there, hiding in plain sight. All those tree trunks you see aren’t actually individual trees. Technically, they’re branches, and that’s because Pando is one massive tree—sprawling more than 100 acres, with 47,000 branches growing from it.   There is a lot to learn about Pando, and our guests turned to sound to understand the tree better. Together, they created an “acoustic portrait” to hear all the snaps, splinters, and scuttles that happen in and around the tree. Ira talks with Jeff Rice, a sound artist and co-founder of the Acoustic Atlas at the Montana State University Library, and Lance Oditt, executive director of the non-profit Friends of Pando, which is dedicated to preserving the tree.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

FDA Advisory Board Approves First Over-the-Counter Birth Control Pill This week an FDA advisory board paved the way for the first over the counter birth control pill, with an unanimous decision 17-0. The FDA must accept the recommendation before the pills are available for sale, which is expected in a few months time. If approved, the progestin-only pill would be manufactured by the company Perrigo, under the brand name Opill. Ira talks with Maggie Koerth, science journalist based in Minneapolis, Minnesota, about that and more including; Voyager spacecrafts get energy boosts, wild axolotls face extinction, testing airplane waste for COVID-19 and more.   US Declares An End To The COVID-19 Public Health Emergency Just over three years ago, Alex Azar, then the Secretary of Health and Human Services, issued a declaration of a national public health emergency as a result of the novel coronavirus, SARS-CoV-2. That declaration kicked off a cascade of nationwide funding, policies, and restrictions aimed at combating the spread of the COVID-19 pandemic. In the three years that followed, the Centers for Disease Control and Prevention estimates over a million people in the US have died from COVID-19. Yesterday, although the virus is still circulating and people are still getting sick, that emergency declaration finally came to an end, after being renewed over a dozen times. A statement released by the Department of Health and Human Services said “COVID-19 is no longer the disruptive force it once was. Since January 2021, COVID-19 deaths have declined by 95% and hospitalizations are down nearly 91%.” Dr. Anthony Fauci, former head of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health, joins Ira Flatow to talk about where we go from here. Is life back to normal—or is there a new normal? What have we learned from the past three years about responding to future outbreaks?   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

SpaceX Explosion Damages Environment Around Launch Site Last Thursday, SpaceX’s South Texas facility was awash in noise and fire, as crowds gathered in South Padre Island and Port Isabel to watch Starship’s first orbital launch. It was the largest and most powerful rocket ever made, standing at around 400 feet tall. Four minutes into the launch, SpaceX detonated the rocket after the SuperHeavy booster failed to separate from the Starship as planned. The launch destroyed the company’s launch pad, spreading concrete up to three quarters of a mile away. Cameras left by YouTubers were either knocked down or destroyed in the rumble, along with some of the fence surrounding the launch pad’s road-facing property. To read the rest, visit sciencefriday.com.   The Private Space Race Takes A Toll On Planet Earth After the SpaceX explosion last month, debris wasn’t the only thing on the minds of Science Friday listeners. The following messages arrived in our inbox after we reported on 3-D printed rockets in March. It was interesting to hear you discuss 7 space launches in 5 days, and then just moments later the fact that we’re not on track to reduce carbon emissions. My understanding is that rocket launches release huge amounts of carbon and other greenhouse gases. Story idea?—@RevBobIerien, Twitter Also regarding the 3-D rockets there wasn’t any concern made for space pollution was there? I may have tuned out unhappily before the end. —Juanita H, email How much carbon do rockets contribute to global warming? —Robert C, email Very disappointing to hear the report of new “cheaper” 3D-printed rockets are available so that, like fast food pods and big gulps, we can now drop even more cheap **** into the ocean. And, *immediately* following a story about the new report on climate change, what exactly is the carbon footprint resulting from the ability of more people to more cheaply fire rockets into space? —David M, email Carbon isn’t the big pollutant that comes from spaceflight, says Dr. Eloise Marais, associate professor in physical geography at University College London. Instead, black carbon or soot particles are generated and released directly into the atmosphere, alongside reactive nitrogen and nitrogen oxides. Dr. Marais joins Ira to talk about how much of an impact increased rocket launches could have on the atmosphere, and how that compares to the auto industry.    How To Combat The Antibiotic Resistance Crisis For years scientists have been ringing alarm bells about a global antibiotic resistance crisis. Now hospitals and healthcare facilities face the consequences: In the United States, there are 2.8 million antimicrobial-resistant infections every year, and more than 35,000 people die from these infections. Bacteria naturally try to outsmart the drugs designed to kill them, which causes treatments to become ineffective over time. While new antibiotics are made to respond to these resistant strains, the bacteria continue to evolve—creating a constant, and costly, cycle. There’s a number of added factors driving the crisis, including antibiotic use in livestock and the general overprescription of antibiotics. About 1 in 3 antibiotic prescriptions in outpatient settings like urgent care or emergency departments are unnecessary. Scientists are struggling to keep up with the need to replace antibiotics that no longer work. It’s a never ending game of catch up. Ira discusses some of the possible solutions to this vexing problem and takes listener questions with Dr. Victor Nizet, faculty lead of the Collaborative to Halt Antibiotic-Resistant Microbes at the University of California San Diego and Dr. Eddie Stenehjem, executive vice chair of medicine at the University of Colorado.   Are Phages A New Page In Medicine? One of the many possible solutions to the global antibiotic resistance crisis is an old idea that’s new again—bacteriophages, or phages for short. Phages are viruses that exist solely to kill bacteria and are abundant in nature. While scientists first discovered phages’ ability to treat bacterial infections about a century ago, there’s been little interest in turning them into a treatment for patients with antibiotic resistant infections—until recently. Ira talks with Dr. Graham Hatfull, professor of biotechnology at the University of Pittsburgh about the latest in phage science.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Dying Planet Offers A Peek Into The Future This week, astronomers reported in the journal Nature that they had spotted a planet approximately the size of Jupiter being swallowed by a star over the course of ten days. The star, called ZTF SLRN-2020, is about 15,000 light-years away from our solar system, but still in our own galaxy. Astronomers had thought this type of planet-engulfing must happen, based on how stars evolve and certain chemical signatures they’ve spotted from inside stars. However, this is the first time the process has actually been observed. Our own sun is predicted to go through a similar expansion in about five billion years, consuming Mercury, Venus, and likely Earth. Tim Revell, deputy US editor at New Scientist, joins Ira to talk about the fate of the planet and other stories from the week in science, including mapping the trees of Africa, an experimental Alzheimer’s drug showing early promise, and reconstructing a short movie clip based on brain signals recorded in mice.   Saliva: The Unsung Hero Of Taste How good are you at tasting what you eat? Not just gulping food down, but actually savoring the flavor? When you think about how taste works, you may think about your tongue and taste buds, and how they send information about your food info to your brain. But there’s an overlooked—and understudied—hero in this story: saliva. That may sound strange, since part of saliva’s job is to help us chew, swallow, talk, and even digest. But saliva is much more interesting and complicated than that. Ira talks with Chris Gorski, editor at Chemical & Engineering News, who reported this story about taste and saliva for Knowable Magazine earlier this year.   Who Will Win The Rat Race? Last fall, New York City’s Sanitation Commissioner Jessica Tisch stood in front of a microphone and announced her plan to deal with NYC’s most hated residents: rats. She went on to make a now-viral declaration: “I want to be clear, the rats are absolutely going to hate this announcement. But the rats don’t run this city: We do.” Soon after, NYC announced its search for a rat czar. Someone who is “highly motivated and somewhat bloodthirsty” with “the drive, determination, and killer instinct needed to fight the real enemy—New York City’s relentless rat population.” This news—and the memes born from it—put rats in the forefront of city dwellers’ minds. And now, the newly appointed rat czar Kathleen Corradi’s reign has begun. But ridding cities of rats is no easy feat. It requires public participation, new policy, behavioral changes, and an all-hands-on-deck approach from several government departments. So what’s it going to take to rid cities of rats? And is it even possible? In this live call-in, Ira talks with Bethany Brookshire, science journalist and author of Pests: How Humans Create Animal Villains, and Dr. Bobby Corrigan, urban rodentologist and pest consultant. They discuss the history of humans’ relationships with rats, why these critters thrive in cities, and why we’ll need to learn how to live with them.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Why Do Humans Anthropomorphize AI? Artificial intelligence has become more sophisticated in a short period of time. Even though we may understand that when ChatGPT spits out a response, there’s no human behind the screen, we can’t help but anthropomorphize—imagining that the AI has a personality, thoughts, or feelings. How exactly should we understand the bond between humans and artificial intelligence? Guest host Sophie Bushwick talks to Dr. David Gunkel, professor of media studies at Northern Illinois University, to explore the ways in which humans and artificial intelligence form emotional connections.   A Bee’s Eye View Of Cities’ Microbiomes When you want to look at the microbial health of a city, there are a variety of ways to go about it. You might look at medical records, or air quality. In recent years, samples of wastewater have been used to track COVID outbreaks. Studies of urban subway systems have involved painstaking swabs of patches of subway muck. But now, researchers are offering another approach to sample a city’s environment—its beehives. A report recently published in the journal Environmental Microbiome used the bees foraging in a city to provide information about the town’s bacteria and fungi. The researchers found that by looking at the debris in the bottom of a beehive, they could learn about some of the environments in the blocks around the hives. The microbes they collected weren’t just species associated with flowers and plant life, but included organisms associated with ponds and dogs. The team found that the hive samples could reveal changes from one neighborhood to another in a city, and in the microbial differences between different cities—samples taken in Venice, for instance, contained signals associated with rotting wood that were not seen in samples from Tokyo. Elizabeth Henaff, an assistant professor in the NYU Tandon School of Engineering at New York University and a co-author of the report, joins SciFri’s Kathleen Davis to talk about what bees and microbes can tell us about the cities we share.   This Is Your Brain On Words What happens after you pick up a book, or pull up some text on your phone? What occurs between the written words hitting your eyes and your brain understanding what they represent? Scientists are trying to better understand how the brain processes written information—and how a primate brain that evolved to make sense of twisty branches and forking streams adapted to comprehend a written alphabet. Researchers used electrodes implanted in the brains of patients being evaluated for epilepsy treatment to study what parts of the brain were involved when those patients read words and sentences. They found that two different parts of the brain are activated, and interact in different ways when you read a simple list of unrelated words, compared to when you encounter a series of words that builds up a more complex idea. Dr. Nitin Tandon, a professor of neurosurgery at UTHealth Houston and one of the authors of a report on the work published in the Proceedings of the National Academy of Sciences, joins guest host Sophie Bushwick to talk about the study, and what scientists are learning about how the brain allows us to read.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Dirty Diapers Reveal How Germy Babies’ Microbiomes Are In a new study, researchers picked through the dirty diapers of more than 600 infants. Those stinky diapers were a gold mine of info—they contained more than 10,000 virus species. And though it may sound terrifying, those viruses play a key role in babies’ microbiomes. Guest host and SciFri producer Kathleen Davis talks with Katherine J. Wu, staff writer at The Atlantic about this story and other science news of the week. They chat about climate change’s influence on the twilight zone, what critters can be found on the Great Pacific Garbage Patch, a surprising twist in the story of Mars’ moon Deimos, the impressive sleeping habits of elephant seals, and why insects seem to flock to the light when it’s dark out.   From Backyards To Barn Yards, The Surprising Science Of Chickens Raising backyard chickens continues to grow in popularity. The number of households in the United States with a backyard flock jumped from 8% in 2018 to 13% in 2020, according to a survey by the American Pet Products Association. But our fondness for chickens is hardly new. The relationship between humans and chickens goes back thousands of years, to when humans began domesticating the red junglefowl native to Southeast Asia. Guest host Sophie Bushwick has a compre(hen)sive conversation with Tove Danovich, freelance journalist and author of the new book Under the Henfluence: Inside the World of Backyard Chickens and the People Who Love Them, about how she was charmed by her own backyard chickens, the history of their domestication, and the surprising science of chicken intelligence.   Why Climate Activists Are Turning To Drastic Measures For Earth Day this year, people all over the world took to the streets to demand climate action. But as large and loud as these protests can be, they are often met with inaction. So activists are ramping up their efforts. Just within the last year, we’ve seen people chain themselves to banks, throw mashed potatoes at a Monet painting, shut down highways, and even glue themselves to museum walls, all in the name of climate justice. Those actions went viral and really seemed to strike a nerve. How did we end up here? Guest host Kathleen Davis talks with Dr. Dana Fisher, professor of sociology at the University of Maryland College Park, about the state of climate activism and the tactics at play.   Recasting The Climate Movement In ‘How To Blow Up A Pipeline’ Climate activism is getting the big screen treatment this spring, with the new film “How to Blow Up a Pipeline.” This action-packed heist film follows a group of young climate activists, disillusioned by the slow pace of climate action, who decide to take drastic action in the name of the climate. What follows is a tense ‘will they-won’t they’ story set in Texas oil country. The name of this movie comes from a 2021 nonfiction book by Andreas Malm. That book is a manifesto that argues that property damage and sabotage is the only way forward for climate activism. The movie features characters who struggle with this question, and whether there’s a different way to accomplish their climate goals. Guest host Kathleen Davis speaks with Ariela Barer, who co-wrote, produced, and acted in the film. They chat about bringing this complicated topic to the big screen, and creating characters reflective of the real-life climate movement.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

How do we use art to process the world around us in ways that science can’t? How are illustrators using their skills to help us understand nature’s most unusual creatures? On Universe of Art, a new podcast from Science Friday, hosted by SciFri producer and art nerd D Peterschmidt, we bring you some of our favorite arts stories from the show, some new ones too, and conversations with the producers who made those segments. We’ll hear from astronomers who integrate space into their artwork, drag performers who bring science into their acts, and many others. Join us for conversations with artists who use science to bring their creations to the next level. Listen to Universe of Art on Apple Podcasts, Spotify, Google Podcasts, Stitcher, TuneIn or your favorite podcasting app.

An Explosive End For A Massive Rocket This week, SpaceX attempted the first uncrewed orbital test flight of its massive Super Heavy rocket topped with an experimental crew capsule known as Starship. After one aborted launch earlier in the week, the huge rocket successfully lifted off Thursday morning—but minutes later, the Starship component failed to separate from the Super Heavy booster, and the combined rocket stack exploded. While a setback for the team, SpaceX head Elon Musk said that a lot had been learned from the flight, and another test launch would take place in several months. Purbita Saha, senior editor at Popular Science, joins SciFri’s John Dankosky to talk about the launch and other stories from the week in science, including an Earth Day look at water conservation issues across the country and the materials science of Maya plaster. Plus, you can now listen to Science Friday's new arts podcast, Universe of Art. SciFri producer and Universe of Art host D Peterschmidt joins John to give a sneak peak of some of the episodes.    Dismantling Myths About Menstruation Saying the phrase “menstrual blood” or or the word “period” can feel almost dirty. That’s because in the western world, people with periods are taught not to discuss this exceedingly normal biological process. Half the world will menstruate at some point in their lives, and yet menstruation remains exceedingly under-studied. Biological anthropologist Kate Clancy dug into the history of menstruation research, and the myriad misconceptions about it, while working on her book “Period: The Real Story of Menstruation.” What she found was a lack of basic understanding of the biological process, from physicians and menstruators alike. Clancy speaks with guest host Maddie Sofia about the misconceptions of a “normal” menstrual cycle, and other persisting period myths. Fighting Climate Change With Genetically Modified Trees Vince Stanley has a saying, which he holds as true in a commercial forest as on a row crop farm: Every acre has a plan. In a wetland he owns in Tattnall County, about 70 miles west of Savannah, downhill from an orderly grove of predictably profitable loblolly pines, he is trying out something new. “Now, look at this guy right here,” Stanley said, pointing out what looked more like a stick in the mud compared to the tupelos growing a few yards away in the deeper water. This stick, surrounded by pin flags and planted about six feet away from its sister, had signs of new life: dark green leaves. “That’s impressive,” Stanley said. And the germ of the new plan for these acres, is something that, until now, Stanley said he didn’t really have. “We’re just leaving this up to Mother Nature,” he said. “So now with Living Carbon, we’ve gone to Option B.” This nascent tree and 10,499 others are at the heart of Option B, what might be the first effort of its kind in the nation: genetically engineered trees planted in a forest. What’s more, these trees are for sale. Read the rest at sciencefriday.com.   All You Need To Know About Anesthesia If you’ve ever had surgery, you’ve probably wondered about how anesthesia works, or maybe even lied awake at night anxious about going under. If you’ve ever been there, I’m sure you remember: Right before surgery, you get rolled into the operating room. The anesthesiologist tells you to start counting down from 10. The next thing you know, you’re awake in the recovery room and you don’t remember anything that just happened to you. How exactly did anesthesiologists manage to get you safely into that state and back out again? Guest host John Dankosky talks with Dr. Louise Sun, professor of anesthesiology, perioperative and pain medicine at Stanford University Health and Dr. Gunisha Kaur, anesthesiologist, director of the Human Rights Impact Lab, and medical director of Weill Cornell Center for Human Rights at Weill Cornell Medicine about the basics of how anesthesia works.

How We Arrived At Current Standards Of Care For Trans Medicine So far this year, 16 states have moved to restrict or completely ban transgender kids access to gender affirming care. And 17 other states are considering similar laws, a handful even trying to restrict care for adults. This political controversy has drawn increased attention to “Standards of Care,” a set of guidelines written by the World Professional Association for Transgender Health or WPATH. Health professionals are encouraged to consult these guidelines when providing gender affirming care like puberty blockers, hormones and surgery to transgender patients. A new version of the standards were released last fall, sparking controversy. Some conservatives saw the guidelines as making transition too easy, and seized the moment to further restrict transition-related care. Some trans activists and health care providers felt the opposite, seeing the 2022 guidelines as too restrictive, creating unnecessary hurdles to life-saving medicine. How did we get to a point where one document is supposed to shape all of trans medicine? Guest host Maddie Sofia talks with Hil Malatino, Assistant Professor of Women’s, Gender, and Sexuality Studies and Philosophy at Penn State University, to put in perspective the history of gender affirming care.   How The Cherokee Nation Is Saving Culturally Significant Seeds Think about your family heirlooms—the most prized items passed down from generation to generation, that tell a story about who you are and where you come from. Did you ever think that seeds could be part of that story? This year, the Cherokee Nation Seed Bank is continuing its program to distribute heirloom seeds to tribal citizens, one that’s been running since 2006. Last year, the Nation distributed almost 10,000 seed packets to citizens across the country in an effort to keep these culturally significant plants from being lost. This year, the Cherokee Nation is sharing seeds for a variety of Cherokee corn, gourds, beans, pumpkins, beads, and native plants and flowers. Guest host John Dankosky talks with Feather Smith, the Cherokee Nation’s ethnobiologist, about how Cherokee heirloom seeds have been cultivated, planted, and preserved over the years. To see an image gallery of the Cherokee Nation heirloom garden, visit sciencefriday.com.   The Long Legacy Of The Alpha Wolf Myth Around the 1970s, the world latched onto a catchy new scientific term: alpha wolf. It described the top dog that clawed its way to the top of its pack, and it quickly became a mainstream symbol for power and dominance. The idea of the alpha wolf was debunked almost 25 years ago, but its legacy lives on. Most commonly, it’s found in circles of the internet where men appoint themselves alpha wolf, and also in dog training. Strangely, those two things are connected. Guest host Maddie Sofia explores how science works and how people use it in their everyday lives, whether it’s true or not. And a little about what happens when science goes mainstream. Maddie first talks with Dr. Dave Mech, senior research scientist at the US Geological Survey and founder of the International Wolf Center. His 1970 book “The Wolf: The Ecology and Behavior of an Endangered Species” helped popularize the term “alpha wolf.” But when he discovered that alpha wolves aren’t really real many years later, he tried to right the wrong. Then, Maddie talks with two researchers about how the alpha wolf idea is still around today: Anamarie Johnson, PhD candidate and canine behavior consultant at Arizona State University, and Dr. Lindsay Palmer, social and behavioral scientist who studies the human-animal bond at the University of Massachusetts Chan Medical School. They explore how biases and societal ideas shape science, and connect the dots between alpha wolves, masculinity, and dog training.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Is Anybody Out There? The Quest For Life In Space It’s one of humanity’s biggest fundamental questions: “Is there life elsewhere in the universe?” But despite years of searching, it’s a query that still has no answer.  That conundrum also opens up a whole string of other inquiries, from how to best search for signs of life, to whether we’ll be able to make sense of what we’re seeing.  The search for life elsewhere can also help us learn about our own existence. How many of what we consider the basic rules of life on earth are really just suggestions, or convenient accidents?    A new book tackles these riddles through the lens of both science and science fiction. Science writer Jaime Green, author of the book, The Possibility of Life: Science, Imagination, and our Quest for Kinship in the Cosmos, joins Ira to talk about the science, history, and philosophy of our search for alien lifeforms, and takes questions from callers.  The SciFri Book Club will be reading this book together in May—you can read along with us next month. Find everything you need to know on our May Book Club page.   Farm Fertilizers Can Contain ‘Forever Chemicals’ From Sewage The Deer Island Wastewater Treatment Plant is a pollution success story. Over the last several decades, it transformed Boston Harbor from a nationally embarrassing cesspool into a swimmable bay. The treatment plant takes everything the people of Greater Boston send down their sinks, toilets, showers and washing machines — plus industrial waste — and treats it. The treated water is clean enough to let out into the ocean. The remaining sludge gets recycled into fertilizer that’s used in nearly 20 states. But now that fertilizer is raising fresh concerns. That’s because wastewater treatment plants like Deer Island were not built to handle the toxic “forever chemicals” known as PFAS. The treatment process concentrates PFAS chemicals in the sludge, and therefore in the fertilizer, leading environmentalists and public health advocates to call for an immediate end to its use. Others are not sure that a full ban on sludge-based fertilizer, or “biosolids,” is the answer. But there is widespread agreement that we have only begun to grasp the extent of the problem. To read the full article, visit sciencefriday.com   When AI And Dementia Intersect As AI becomes more advanced, it’s also becoming a bigger part of our lives. That’s especially true of smart speakers, which to some of us, act as another member of a family: answering simple questions, reminding us about appointments, and entertaining children. But what parts of our privacy are we giving up to make our lives slightly more convenient?  That’s the focus of a new play called “Smart,” which tells the story of four characters: a woman, her aging mother who has dementia, an AI programmer who works for a tech  company, and a smart speaker named Jenny.  Ira speaks with the writer of “Smart,” Mary Elizabeth Hamilton, about how she wrote the play, how the science behind AI inspired its plot, and the connections between AI hallucinations and dementia-induced hallucinations.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

EPA Proposal To Require 60% Of New Cars To Be EVs by 2030 The EPA released a set of proposals this week that would cap C02 emissions for new cars. In order to meet the new stricter targets automakers would need to ramp up electric vehicle manufacturing substantially. By 2030, 60% of new cars would need to be electric. Ira talks with Casey Crownhart, Climate Reporter for the MIT Technology Review, about the new EPA emissions proposals and other top science news of the week including predictions of a bad mosquito season and turtles basking in the moonlight.     Lactose Intolerance May Have A Lot To Do With Your Gut Microbiome In the animal kingdom, it’s not normal to drink milk past infancy. It’s even more rare to consume milk from another mammal. But throughout history, humans have used dairy farming as a way to get calories and nutrition from creatures like cows, goats, and sheep. And a big perk: dairy products taste good. Evidence of dairying goes back to the early Neolithic era. Traces have been found in the historical record in Europe, Asia, and Africa, in ancient teeth and pottery. Lactase persistence, or the ability to consume dairy into adulthood, developed alongside this burgeoning industry. But here’s the catch: a large part of the population is still lactose intolerant, either from childhood or developed in adulthood. It’s estimated that about a third of the U.S. population is lactose intolerant, with a higher chance among certain ethnic and racial groups. There’s a lot to learn about the origins of lactose persistence and lactose intolerance, and much of that knowledge comes from the gut microbiome. Joining Ira to talk about this is Christina Warinner, assistant professor of anthropology at Harvard University, based in Cambridge, Massachusetts.     Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

An Open Letter Asks AI Researchers To Reconsider Responsibilities In recent months, it’s been hard to escape hearing about artificial intelligence platforms such as ChatGPT, the AI-enabled version of Bing, and Google’s Bard—large language models skilled at manipulating words and constructing text. The programs can conduct a believable conversation and answer questions fluently, but have a tenuous grasp on what’s real, and what’s not. Last week, the Future of Life Institute released an open letter that read “We call on all AI labs to immediately pause for at least 6 months the training of AI systems more powerful than GPT-4.” They asked researchers to jointly develop and implement a set of shared safety protocols governing the use of AI. That letter was signed by a collection of technologists and computer researchers, including big names like Apple co-founder Steve Wozniak and Tesla’s Elon Musk. However, some observers called the letter just another round of hype over the AI field. Dr. Stuart Russell, a professor of computer science at Berkeley, director of the Kavli Center for Ethics, Science, and the Public, and co-author of one of the leading AI textbooks was a signatory to that open letter calling for a pause in AI development. He joins Ira Flatow to explain his concerns about AI systems that are ‘black boxes’—difficult for humans to understand or control.   NASA Announces Artemis II Crew For Next Moon Mission This week, NASA announced the four person crew of the Artemis II mission to the moon: Commander Reid Weisman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen. The crew has three firsts for a moon mission, the first woman, first person of color and first Canadian. While these Artemis II astronauts will not actually step foot on the moon, it’s an important milestone for NASA’s first moon mission since Apollo. Ira talks with Swapna Krishna, host of the PBS digital series, Far Out about this week’s announcement and the future of the Artemis mission.   Will Rising Temperatures Help Batters Swing for the Bleachers? As the planet warms, melting ice and shifting seasons aren’t the only things changing—the traditions of baseball may be affected as well. A report published this week in the Bulletin of the American Meteorological Society finds that warmer air temperatures are connected to a slight increase in the number of home runs hit in major league baseball. The effect, the researchers say, is due to a decrease in air density at warmer temperatures, which allows a hit ball to fly slightly further than it would in cooler air. So far, the effect is small. After correcting for other factors, the researchers say they can attribute about 500 additional MLB home runs since 2010 to warmer temperatures. Most of the observed increase in home run hitting isn’t attributable to the climate. However, they say, each additional one degree Celsius increase in temperature may lead to a two percent increase in home runs. And while ballparks with an insulating dome won’t see big shifts from increased temperatures, open-air parks with a lot of daytime games, such as Wrigley Field, will see more significant effects. Christopher Callahan, a Ph.D. candidate in geography at Dartmouth and lead author of the report, joins Ira to talk baseball and climate.   This Video Game Prioritizes Restoring An Ecosystem Over Profits If you’ve played Rollercoaster Tycoon, Cities: Skylines, the Civilization series—even Animal Crossing—you’re probably familiar with this gameplay pattern: extract some kind of resource from the land, industrialize it into a theme park or a city, and (step three) profit, ad infinitum. But Terra Nil, a new game from the studio Free Lives, fundamentally challenges this oft-used game loop. Instead of maximizing profit at the expense of the local ecosystem, the player’s focus is to make a healthier, natural one instead. You start with a barren wasteland (one that you assume has been completely desolated by human activity, perhaps the aftermath from one of the previously mentioned games), and with the help of advanced eco-tech—like wind turbines, soil purifiers, irrigators, and more—restore it to a thriving, diverse ecosystem. The player’s ultimate goal is to take all the tech they used to restore the land, recycle it into an airship, and fly away, leaving no human presence behind. SciFri producer D Peterschmidt speaks with Sam Alfred, the lead designer and programmer of Terra Nil, about how Free Lives designed this “reverse city-builder,” how the studio took inspiration from the flora of their local Cape Town, and how he hopes the game challenges players how they think about traditional gameplay systems and their effect on our world.     Workout Worms May Reveal New Parkinson’s Treatments Scientists built an exercise pool for tiny worms. Why? A team of researchers at University of Colorado Boulder are looking into ways to help treat people with Parkinson’s and other neurodegenerative diseases. They’re turning to tiny collaborators, C. elegans, worms which measure just one millimeter in length. These scientists wanted to see how exercise affects brain health by putting a bunch of these worms in an exercise class—in a tiny pool. Ira talks with the co-author of this fascinating new research, Dr. Joyita Bhadra, post-doctoral researcher at the University of Colorado Boulder.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Your Plants Are Trying to Tell You They’re Thirsty Spring is in the air, with flowers blooming and gardens starting. Most people with a green thumb will know a droopy plant is a signal that it needs water. But new research has found another way that plants will signal that they’re thirsty: emitting staccato popping sounds, too high pitched for the human ears. Elsewhere in the world of science journalism, an argument has been made that elephants have self-domesticated. If true, this would make these gentle giants only the third creature to have done this, alongside humans and bonobos. Joining Ira to talk about these stories and other science stories of the week is Rachel Feltman, host of the podcast “The Weirdest Thing I Learned This Week” and editor at large of Popular Science.   Your Future COVID-19 Vaccine May Come Through Your Nose The nose knows about COVID-19 infection. It is the entrance to the immune system, after all. The nose’s position as one of our first lines of defense has many experts in favor of developing COVID-19 nasal sprays, with the thought that it may replace the needle jabs we’ve come to expect. The development of nasal vaccines comes at a time when many Americans are anxiously awaiting if the government will approve additional COVID-19 boosters. The bivalent boosters have been out for more than six months, and there have been reports the U.S. Food and Drug Administration will recommend an additional dose for some Americans this spring. Joining Ira to give us the latest on nasal sprays, boosters, and answering some listener questions is Dr. Akiko Iwasaki, immunobiologist at Yale Medical School in New Haven, Connecticut.   Make It Easier To Be Green. Show Frogs Some Love Frogs have been called the equivalent of the canary in the coalmine, harbingers for the health of our environment. When frogs go silent, something is amiss. So we’re going to spend some time talking about why frogs are so important and how you can better support your neighborly amphibians. One idea? Build a toad abode and welcome them in. Plus, there’s another way to help frogs and toads—and that’s by lending your eyes and your ears to the scientists who study them. April is Citizen Science Month, so we’re kicking things off with a toad-ally cool project called FrogWatch. It relies on volunteers from across the country to record frog calls and report them to FrogWatch’s database. Ira talks with Dr. Itzue Caviedes-Solis, assistant professor at Swarthmore College, about making outdoor spaces more frog-friendly. Then, he chats with Carrie Bassett, National FrogWatch USA coordinator and education mission manager at the Akron Zoo, about how volunteers can lend their eyes and ears to help scientists study frogs.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Sewage Is A Biological Necessity, And A Methane Minefield In most cities, once you flush a toilet, the water and waste flows through the sewage system to a water treatment plant. Once it’s there, it goes through a series of chemical and biological processes which clean it up and make the water safe to drink again. But a recent paper in the journal Environmental Science & Technology finds that some of those sewage plants may be having a greater impact on the climate than previously thought. The anaerobic decomposition of organic material in the waste stream at sewage plants produces methane, a potent greenhouse gas. The researchers used an electric car fitted with a suite of atmospheric gas sensors to sniff the emissions downwind of 63 sewage treatment plants at different times and during different seasons. They found that the wastewater treatment process may release amounts of methane nearly twice that estimated by the Intergovernmental Panel on Climate Change and the U.S. Environmental Protection Agency. In a related study, other researchers analyzed data from published monitoring of wastewater treatment facilities around the globe—and arrived at a similar estimate of the methane production. Mark Zondlo, a professor of civil and environmental engineering at Princeton University, and one of the authors of the methane-sniffing research, talks with guest host Shahla Farzan about the studies, and about what might be done to mitigate the methane impact of treating our cities’ sewage.   Meet The Activist Reimagining Climate Education As a high school student, Sage Lenier remembers being frustrated with the way she was taught about climate change. It left her feeling helpless, contending with the gloomy predictions for a doom-filled future. Despite talking about the problems, she wasn’t learning anything about solutions. A year later at the University of California, Berkeley, Sage took it upon herself to create the course she wished she had—one focused on solutions and hope. Nearly 2,000 students have taken her course since, and she recently founded Sustainable & Just Future, a youth-led educational non-profit. Guest host Kathleen Davis talks with Sage about her experiences, why we’ve gotten climate education all wrong, and how we need to be thinking about our future.   The First Fully Mapped Animal Brain Is The Larva Of A Fruit Fly Understanding how a brain works is one of the most challenging tasks in science. One of the ultimate goals in brain research is to develop brain maps, which catalog which neurons are connected to others, and where. If researchers have a brain map, they can better understand neurological conditions like addiction, and develop more effective treatments. It may even help scientists understand more abstract concepts, like consciousness. The catch? Mapping millions, or even billions, of tiny little neurons is an extremely challenging and expensive task. But a team of researchers at Johns Hopkins University recently completed a 12-year effort to map the entire brain of a fruit fly larva, which is the size of a grain of salt, and contains 3,000 neurons and 500,00 connections. Their results were published in the journal Science. Joining guest host Shahla Farzan is the paper’s senior author Joshua Vogelstein, an associate professor of biomedical engineering at Johns Hopkins University. They talk about how exactly his team completed this task, when a human brain map might be completed, and how this could be a meaningful step in understanding how enlightenment works.   National Audubon Society Sticks With Its Name, Despite Namesake’s Racism For more than a year, the National Audubon Society—one of the largest bird conservation groups—mulled over a big decision: whether or not they should rename the organization. Its namesake, John James Audubon, is known as the founding father of American birding. But Audubon and his family were anti-abolition and they enslaved nine people in their home. He also actively harmed and looted from Indigenous people. Earlier this month, the National Audubon Society announced its decision to keep “Audubon” in its name, saying that it’s important in allowing the organization to keep protecting birds. The open letter also says the organization represents “much more than the work of one person.” The decision to stick with the Audubon name has been met with intense backlash, from birders, local branches, and even its own employees. A handful of locally-run Audubon branches, from New York City to Madison, Wisconsin, plan to change their names to nix the word Audubon. Seattle’s branch is renaming itself “Birds Connect Seattle,” and Washington D.C.’s Audubon Naturalist Society is now “Nature Forward.” Guest host Kathleen Davis speaks with Stuart Wells, executive director of Portland Audubon and conservation scientist Corina Newsome about their reactions to the National Audubon Society keeping its name, and how changes are happening locally, including in places like Portland.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

A Supermassive Black Hole The Mass Of 30 Billion Suns This week, astronomers reported that they may have found signs of one of the largest black holes ever detected–a space behemoth the mass of some 30 billion suns. The supermassive black hole, located in part of the Abell 1201 galaxy cluster, was detected using a combination of gravitational lensing and supercomputer simulations. First, the astronomers observed how the images of other more distant objects viewed by the Hubble Space Telescope were warped by the vast gravitational well produced by the black hole. They compared those images to thousands of simulations created via a supercomputer, and found that a simulation containing a supermassive black hole matched the real-world images. The work was reported in the journal Monthly Notices of the Royal Astronomical Society. Umair Irfan, staff writer at Vox, joins SciFri’s Kathleen Davis to talk about the finding and other stories from the week in science, including the FDA’s approval of over-the-counter Narcan, the real-world challenges of EV charging, and the creation of a meatball–made of mammoth.   What’s Driving A Rise In Mumps Cases In The United States? In 1971, the United States rolled out a revolutionary new vaccine for measles, mumps, and rubella. The MMR vaccine nearly eradicated all three of those viruses by the start of the 21st century. Over the last several years, there have been numerous measles outbreaks cropping up across the country, especially among unvaccinated kids. What about mumps—that second “m” in the MMR vaccine? Since 2006, there have been mumps outbreaks too. But unlike measles, most of the people getting the mumps are vaccinated. And they’re older too, mostly teens and young adults. New research suggests that the efficacy of the mumps vaccine wanes over time, unlike the ones for measles and rubella. Guest host Shahla Farzan talks with Dr. Deven Gokhale, co-author of a recent study on the reemergence of mumps. Gokhale recently completed his PhD from the University of Georgia’s Odum School of Ecology, based in Athens Georgia.   Foundational Food Sources In The Gulf Of Maine Are Failing At the Bigelow Laboratory for Ocean Sciences, researchers Barney Balch and Catherine Mitchell are looking at a map affixed to a large table. “We’re looking at a chart of the Gulf of Maine, and right across the middle there’s a line that’s drawn from Portland, in Maine, to Yarmouth, in Nova Scotia,” Mitchell says. That line is the route along which Bigelow researchers have been taking regular measurements for the last 25 years. They’ve analyzed chemical and temperature data that help describe how the waters of the gulf are changing. One tool they use is a six-foot long cylinder with wings. “This is an autonomous underwater vehicle, or a glider,” Mitchell says. “So it’s a big robot that moves up and down in a yoyo-like pattern, from the top of the ocean to the bottom of the ocean right across the middle of the Gulf of Maine. So it’s measuring a bunch of science things as it goes. It looks a bit like a big yellow torpedo. It’s got some wings on it.” Read the rest at sciencefriday.com.   Is Spring Falling Out Of Sync? Each year, it feels like spring comes as a surprise—too early or too late. For example, new maps reveal that spring is 13 days late in Sacramento, California but two weeks early in Richmond, Virginia. And that could be a problem because plants and animals use environmental cues, like temperature, to know when to flower, migrate, breed, or emerge from hibernation. So when the seasons are thrown off, what happens to those natural rhythms that once flowed together seamlessly? Guest host Shahla Farzan talks with Dr. David Inouye, professor emeritus at the University of Maryland and a researcher at the Rocky Mountain Biological Station, and Dr. Theresa Crimmins, director of the USA National Phenology Network and research professor at the University of Arizona. They discuss the variability in seasons, and the cascade of effects these changes can have on ecosystems.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Can Medicine Move To Animal-Free Testing? Before a new drug can begin clinical trials in humans, it gets tested on animals. But things are changing. Late last year, Congress passed the FDA Modernization Act 2.0, which cleared the way for new drugs to skip animal testing. Can we expect to phase out animal testing altogether? Is it safe? And what technologies might make that possible? Guest host Flora Lichtman talks with Dr. Thomas Hartung, director of the Johns Hopkins Center for Alternatives to Animal Testing, to get a broader picture of alternatives to animal testing.   Capturing Carbon With Tasty Fungus This week, a report from the Intergovernmental Panel on Climate Change brought dire warnings about our planet’s climate future and an alert that drastic action is needed—now—to avoid catastrophe. One action the report recommends involves an overhaul of our food production systems to decrease their carbon impact.   Writing in the Proceedings of the National Academy of Sciences, researchers suggest one possible way of sequestering some carbon dioxide might be cultivating certain kinds of edible mushrooms on land that has already been cultivated for agroforestry. The researchers are working with Lactarius deliciosus, commonly known as the saffron milk cap or red pine mushroom, but other species are possible as well. These mycorrhizal fungi live in a symbiotic relationship with the roots of the trees, increasing biomass and storing more carbon, while producing food on land that might have otherwise been used only for trees. In certain climates and with certain trees, these fungi can actually be a carbon-negative source of protein. However, to produce a pound of protein currently requires a lot of land and effort. The researchers are working to make forest fungal farming easier, and to expand the approach to a wider range of trees. SciFri’s Charles Bergquist talks with Dr. Paul Thomas, author of that report and research director at the company Mycorrhizal Systems, a company that helps farmers grow truffles. He’s also an honorary professor in the University of Stirling’s Faculty of Natural Sciences in the UK.   Whiskey Distillery On The Rocks After Fungus Spreads Lincoln County, Tennessee has been overcome by an unwelcome guest: whiskey fungus. It covers everything from houses and cars to stop signs and trees, and no amount of power washing seems to make it go away. Why has whiskey fungus attached to this small town? It feeds on ethanol from the famed Jack Daniel’s distillery, which is in a neighboring county. Lincoln County isn’t the first place to encounter this problem. Whiskey fungus was first documented in 1872 by a French pharmacist named Antonin Baudoin. Baudoin noted how mold caused distillery walls in Cognac to blacken, a phenomenon that has since been seen near distilleries across the world. The fungus was not given a name until 2007, when it was dubbed Baudoinia compniacensis, named for Antonin Baudoin. Joining guest host Flora Lichtman is James A. Scott, PhD, professor of public health at the University of Toronto in Toronto, Ontario. Scott has studied whiskey fungus for over two decades, and gave it its scientific name.   NASA’s New Science Head Sees A Bright Future Last month, NASA announced Dr. Nicola Fox as the agency’s new scientific leader. Fox is taking on a critical role at NASA, shaping the agency’s science priorities and overseeing roughly 100 missions, with a budget of $7.8 billion. The portfolio includes space science from astrophysics and Earth science, covering the planets in our solar system to exoplanets far beyond. Previously, she was the director of the heliophysics division at NASA, which studies the Sun and its role in the solar system. SciFri senior producer Charles Bergquist talks with Dr. Nicola Fox, associate administrator for the Science Mission Directorate for NASA, about her new position, career path, and plans for science at NASA.    

The Latest IPCC Report Is Full Of Warnings—And Hope It’s that time of year: another IPCC report has hit the presses. These reports from the Intergovernmental Panel on Climate Change are like a check up—to let us know how we’re doing on the climate front and what Earth’s future is projected to look like. And to no one’s surprise, this year’s report is full of warnings. But also, it has a lot of room for hope. Maggie Koerth, senior science writer at FiveThirtyEight, joins guest host Charles Bergquist to talk more about the report and other science news of the week. They chat about a 3D printed rocket that didn’t quite make it to space, the mysterious Oumuamua space object, the rise of dangerous fungal infections in the U.S., why researchers are so excited about figuring out Beethoven’s cause of death, and—of course—new research about octopuses’ brain waves.   An Underwater Volcano Off The Oregon Coast Sheds Light On Eruptions A thick blue-white haze envelops the Research Vessel Thompson as it floats 250 miles off the Oregon coast. Akel Kevis-Stirling’s orange life vest and blue hardhat are vivid pops of color in the fog. “You guys ready to go?” he calls into his radio. The person on the other end crackles an affirmative. “Copy that,” he says and looks up across the rear deck of the research ship. “Alright, straps!” The crew of the ROV Jason jumps into action, removing the straps that secure the cube-shaped submarine to the deck. The remotely-operated sub, with a base the size of a queen mattress, is loaded with scientific instruments it will carry down to the seafloor. Kevis-Stirling gets final permission from the Thompson’s bridge for the launch. “Ok, here we go. Jason coming up and over the side,” he calls. “Take it away Tito!” The crane operator, Tito Callasius, lifts the submarine and swings it over the side of the ship into the water. A plume of fine bubbles rises through the waves as Jason starts its mile-long descent to the Axial Seamount, a deep-sea volcano that’s erupted three times in the past 25 years. Read the rest at sciencefriday.com.   March Mammal Madness Wants To Hear You Roar When mid-March rolls around, your news online—and maybe your conversations with friends and colleagues—can sometimes get taken over by discussions about the tournament. From debating your bracket selections to conversations about last night’s matchup, or celebrating big upsets and debating whether this is finally the year the bat-eared fox goes all the way, it can feel all-consuming. March Mammal Madness is an exercise in science communication involving a 64-animal bracket and nightly simulated combat matchups between animals—where the outcomes are determined by chance and specific species traits found in the scientific literature. This is the 10th year of the tournament, which this month has some 650,000 students around the world predicting battle outcomes on the road to the Elite Trait, the Final Roar, and the championship match. Dr. Katie Hinde, a biological anthropologist in the School of Human Evolution and Social Change at Arizona State University, and ringleader of March Mammal Madness, joins SciFri’s Charles Bergquist to talk about the keys to success in the tournament. Want to participate yourself? It’s not too late—you can find the tournament bracket and more information about March Mammal Madness on the ASU Libraries site.   Listen To The Ethereal Sounds Of Space You’ve probably heard that if you scream in space, no one will hear a thing. Space is a vacuum, so sound waves don’t have anything to bounce off of. But that doesn’t necessarily mean that space is silent. A team of researchers are taking data from a variety of telescopes and assigning them sounds, creating song-length sonifications of beloved space structures like black holes, nebulas, galaxies, and beyond. The album, called “Universal Harmonies” aims to bring galaxies to life and allow more people, such as those who are blind and low-vision, to engage with outer space. Guest host Flora Lichtman talks with two of the scientists behind “Universal Harmonies,” Dr. Kimberly Arcand, visualization scientist at NASA’s Chandra X-ray Observatory, and Dr. Matt Russo, astrophysicist and musician at the University of Toronto.    

Stop Flushing Your Health Data Down The Toilet You could be flushing important information about your health right down the toilet—quite literally. Pee and poop can tell you a lot about your health, so what if your waste…didn’t go to waste? What if, instead, it could tell you more about your health? Like number one, it can catch a condition like diabetes early. Or number two, check out what’s going on in your gut microbiome. That’s the goal of the smart toilet—a device that gets all up in your business to tell you more about your health. Ira talks with the inventor of the PH Smart Toilet, Dr. Seung-min Park, instructor of urology at Stanford’s School of Medicine in California, about how the toilet works, how it can be used to catch diseases early on, and the ethical implications of such a device.   50 Years Later, Reflecting On The Treaty That Controls Wildlife Trade 50 years ago this month, a collection of nations met in Washington and reached agreement on a way to regulate international trade in certain wildlife species—from orchids to gorillas. That agreement came to be known as CITES, the Convention on International Trade in Endangered Species of Wild Fauna and Flora. The treaty has come to cover over 30,000 different plants and animals. Some, listed in Appendix 1 of the treaty, are under a complete ban on commercial use, while other species have their trade tightly regulated via a system of permits. Dr. Susan Lieberman, the vice president for international policy at the Wildlife Conservation Society, has attended the last 13 meetings of the CITES signatories. She joins Ira to talk about the convention, and what it has meant for conservation over the last 50 years.   This Skin-like Robot Can Heal Itself Think of a robot, and the image that may come to mind is a big, hulking body building cars or working in factories. They battle each other in the movies. But a growing field called softbotics focuses on thin, flexible materials—closer to human skin than to a Transformer. There’s been a breakthrough in this field out of Pittsburgh: softbotics that can not only conduct electricity, but can heal itself from damage. This replicates the healing abilities of organic materials, like skin, but can happen in seconds. Dr. Carmel Majidi, mechanical engineering professor at Carnegie Mellon University, joins Ira to break down possible futures for this material, including a new generation of prosthetics.   Naked Mole-Rats Are Eternally Fertile There may be no stranger—or more impressive—critter than the naked mole-rat. They may look unassuming, but they can defy aging, have an astonishingly high pain tolerance, and are resistant to cancer. And their list of superpowers doesn’t stop there. Scientists recently discovered yet another way these rodents reject the mammalian status quo: by producing egg cells, and staying fertile, until the day they die. This makes them unlike humans, whose ovaries eventually stop producing eggs. So what can we learn about fertility from these strange critters? Ira talks with the lead researcher of this study, Dr. Miguel Brieño-Enriquez, assistant professor at the Magee-Womens Research Institute and the University of Pittsburgh School of Medicine’s Department of Obstetrics, Gynecology and Reproductive Sciences.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

At Long Last, More Regulations For Forever Chemicals This week, the EPA proposed the first national standards for drinking water that would set limits on the amount of PFAS (per- and polyfluoroalkyl substances) chemicals that would be allowed in water systems. There are thousands of different PFAS chemicals, which are often used industrially for properties such as heat, water and stain resistance—from fire-fighting foams to coatings on clothing and paper plates. They have come to be known as “forever chemicals” as they are extremely slow to break down in the environment. The chemicals have been linked to health problems, including cancer. Katherine Wu, staff writer for The Atlantic, joins Ira to talk about the proposed regulations and how such a sweeping rule might be implemented nationwide. Wu also discusses her latest article on COVID-19 origins, and genetic analysis that could tie the pandemic back to raccoon dogs in the Wuhan market. They also talk about other news from the week in science, including research hinting at active volcanoes on Venus, a study of the effects of COVID-19 on maternal health during pregnancy, and research into curing HIV with stem cells from cord blood. Plus an explosion of seaweed, and the unveiling of a new space suit design.   How AI Is Changing The Drug Development Pipeline Researching and developing new drugs is a notoriously long and expensive process, filled with a lot of trial and error. Before a new drug gets approved scientists must come up with something they think might work in the lab, test it in animals, and then if it passes those hurdles, clinical trials in humans. In an effort to smooth out some of the bumps along the road, a growing number of pharma companies are turning to new artificial intelligence tools in the hopes of making the process cheaper and faster. Ira talks with Will Douglas Heaven, senior editor for AI at MIT Technology Review about his reporting on the topic.    An Ambitious Plan To Build Back Louisiana’s Coast Louisiana will receive more than $2 billion to pay for an ambitious, first-of-its-kind plan to reconnect the Mississippi River to the degraded marshes on Plaquemines Parish’s west bank. A collective of federal and state agencies—the Louisiana Trustees Implementation Group—signed off on the multibillion-dollar Mid-Barataria Sediment Diversion on Wednesday. The funding will come out of settlement dollars resulting from the 2010 Deepwater Horizon oil spill. Once constructed, the two-mile-long sediment diversion is expected to build up to 27 square miles of new land by 2050. In the next 50 years, as Louisiana’s coast continues to sink and global sea levels rise, the diversion is also projected to sustain one-fifth of the remaining land. “The Trustees believe that a sediment diversion is the only way to achieve a self-sustaining marsh ecosystem in the Barataria Basin,” wrote the implementation group in its decision. Read the rest at sciencefriday.com. Balancing The Good And Bad Of Phosphorus Phosphorus is critical to life as we know it. In fact, every cell in the human body contains this important element. It’s also a key component in fertilizer. But not all of that fertilizer stays on crops—much of that phosphorus flows into waterways. Therein lies the rub: the runoff fertilizes the plant life growing in the water, creating toxic algal blooms. To top it all off, the phosphorus reserves in the United States are on track to disappear in just a few decades, according to some estimates.  Ira talks about the past, present, and future of phosphorus with Dan Egan, journalist in residence at the University of Wisconsin-Milwaukee’s School of Freshwater Sciences, and author of the new book, The Devil’s Element: Phosphorus and A World out of Balance. Want to read The Devil’s Element with us? Join the SciFri Book Club and read along!   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Tips And Tricks To Grow Your Garden In A Changing Climate For many of us, spring is right around the corner—or already here—which means it’s time to start thinking about what is going into your garden this year. But largely thanks to climate change, our seasons are getting wonkier every year. Gardens are feeling the heat as climate change affects the timing of the seasons, temperature extremes, the amount of rainfall, the intensity of droughts, and more. So it’s more important than ever to plant a garden that can be more resilient to these changes. In this live show, Ira talks with a panel of guests about planting a climate-resilient garden, and how to set your plants up for success. He’s joined by Laura Erickson, a birder and author of “100 Plants to Feed the Birds: Turn Your Home Garden Into a Healthy Bird Habitat,” Dr. Lucy Bradley, a horticulturist and extension specialist at North Carolina State University, and Dr. Tiffany Carter, research soil scientist at the USDA Natural Resources Conservation Service. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Despite Superconductor Breakthrough, Some Scientists Remain Skeptical This week, researchers unveiled a new superconductor which they say works at room temperature. Scientists have been working on identifying new superconductors for decades—materials that can transmit electricity without friction-like resistance. However, previously discovered superconductors only work at super cold temperatures, and under incredibly high pressures. The newly discovered superconductor, lutetium, could be much more useful in applications, like strong magnets used in MRIs, magnetically floating trains, and even nuclear fusion, than those which must be kept super-cold. But there’s a bit of a wrinkle. The research team which published their results in the journal Nature this week, had their previous study on another superconductor retracted in 2020. As a result, many scientists in the field have concerns about the quality of this new research Ira talks with Sophie Bushwick, technology editor at Scientific American, to make sense of this superconductor saga and other big science news of the week including bumblebee culture, extreme ways to save mountain glaciers, and identifying the worms in Mezcal. Can Utah’s Great Salt Lake Be Saved Before It’s Too Late? Utah’s Great Salt Lake is one of the state’s treasures and is vital to the local ecosystem and economy. But since the 1980s, it’s been drying up—and now the lake’s water level is at a record low. The lake is fed by three rivers, which are fed by Utah’s snowpack. It’s also a terminal lake, meaning that there’s no outlet for water to exit. And as the population of Utah has increased, more water has been diverted from those rivers to agriculture, industry, and local residents. As more of the lakebed has become exposed, wind has picked up dust plumes and blown them into local communities. Dr. Kevin Perry, a professor of atmospheric science sciences at the University of Utah, discovered that those lakebed dust plumes contain heavy metals, including arsenic. But despite these challenges, Perry and local politicians are confident that if the right water usage reductions are put in place, the lake will have a chance to bounce back. Science Friday digital producer Emma Gometz visited Perry at the Great Salt Lake in January, who describes how we got here and what the future holds. Exploring A New Theory About Dark Energy’s Origins Black holes remain one of the great mysteries of the universe. Another enigma? Dark energy. Little is known about this concept, aside from the belief that dark energy accelerates the expansion of the universe. These are two of the most mind-bending concepts in physics. There’s a new theory that brings together black holes and dark energy into one mind-bending solution: research led by the University of Hawai’i at Manoa posits that dark energy could actually come from supermassive black holes at the center of galaxies. If true, this would be a massive breakthrough in what we know about astrophysics. But many experts in the field have reservations about this idea. Two of those experts join Ira to talk about this theory, and other recent black hole breakthroughs: Janna Levin, PhD, author of “Black Hole Blues” and “Black Hole Survival Guide,” and a physics and astronomy professor at Barnard College in New York City, and Feryal Özel, a professor and chair of physics at Georgia Institute of Technology, in Atlanta, Georgia. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Insulin Maker Eli Lilly Finally Caps The Drug’s Cost In 1923, drug manufacturer Eli Lilly became the first company to commercialize insulin. Since then, its cost has skyrocketed. But this week, the company announced that it is capping the cost of insulin at $35. This comes as a huge relief to many Americans, since insulin has become the face of pharmaceutical price gouging. Over the last 20 years, the price of insulin has grown by six times, making this essential, life-saving drug unaffordable to many who need it. Purbita Saha, deputy editor at Popular Science, joins Ira to talk about this announcement and other science news of the week. They chat about a new at-home test for COVID-19 and the flu, how the bird flu outbreak is faring, what we learned from NASA’s DART mission, and why scientists are growing a mushroom computer.   It’s Spacetime And Science Season At The Oscars The Academy Awards are almost upon us, airing March 12. Movie buffs may have already seen many of the nominated films. But for science geeks, there’s another form of criteria for what films go on the top of their watchlist: Do these movies include science? This year, a whole bunch of Oscar nominees are driven by science as part of the plot. The Best Picture category has three: the multiverses in “Everything Everywhere All at Once,” the water-based society in “Avatar: The Way of Water,” and the gravity-defying aerial stunts in “Top Gun: Maverick.” The Documentary Feature Film category is also ripe for science analysis: “Fire of Love” follows the love story between two French volcanologists, “All That Breathes” follows brothers who run a bird hospital in Delhi, and “All the Beauty and the Bloodshed” spotlights Nan Goldin’s advocacy against the opioid-creating Sackler family. Ira is joined by Sonia Epstein, curator of science and technology at the Museum of the Moving Image in Queens, New York, to discuss these films and more—including science-oriented films that were snubbed from this years’ awards.   The Lasting Allure Of Shackleton’s ‘Endurance’ There are few stories about heroic survival equal to Sir Ernest Shackleton’s Antarctic rescue of his crew, which turned disaster into triumph. In August of 1914, 28 men set sail from England to the South Pole. Led by Shackleton himself, the group hoped to be the first to cross Antarctica by foot. However, their ship, the Endurance, became stuck in ice. It sank to the bottom of the frigid Antarctic waters, leaving most of the men stranded on a cold, desolate ice floe. Shackleton, with five of his crew, set out in a small boat to bring help from hundreds of miles away. Finally, after many months of fighting the cold, frostbite and angry seas, Shackleton was able to rescue all his men with no loss of life. Over the years, there have been many attempts to find the Endurance shipwreck. None were successful until a year ago, when the wreck was located for the first time since it sank back in 1915. Ira is joined by Mensun Bound, maritime archeologist and the director of exploration on the mission that found the Endurance. His new book, The Ship Beneath the Ice, is out now.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Inside The ‘Chaos Machine’ Of Social Media Despite social media’s early promises to build a more just and democratic society, over the past several years, we’ve seen its propensity to easily spread hate speech, misinformation and disinformation. Online platforms have even played a role in organizing violent acts in the real world, like genocide against the Rohinga people in Myanmar, and the violent attempt to overturn the election at the United States capitol. But how did we get here? Has social media fundamentally changed how we interact with the world? And how did big tech companies accumulate so much unchecked power along the way? Read an excerpt of The Chaos Machine: The Inside Story of How Social Media Rewired Our Minds and Our World here.   Taking On Renewables’ AC/DC Disconnect In the push to transition society to more renewable energy sources, there are several logistical challenges. One central question involves the best way to connect solar panels and battery storage—which both produce direct current, into an energy grid that primarily provides alternating current at the local level. Dr. Suman Debnath leads a project called the Multiport Autonomous Reconfigurable Solar power plant (MARS) at Oak Ridge National Lab. He and his colleagues have designed a system of advanced power electronics that allow large, utility-scale solar facilities and battery storage projects to feed either AC or DC power, as needed. The approach, Debnath says, will both allow for better integration of those electric resources into the grid, and make it more possible to transport power long distances using more efficient DC transmission lines. Debnath talks with Ira about the MARS project, and ways to modernize the country’s power distribution system for greater reliability and efficiency.   Are These Ancient Galaxies Too Big For Their Age? We’ve all been wowed by the amazing images from the James Webb Space Telescope, or JWST. But sometimes, the important data isn’t in those amazing galactic swirls or wispy nebula images, but in the images of tiny smudges from far, far away. Astronomers recently described some of those smudges, tiny red dots thought possibly to be ancient, distant galaxies, in the journal Nature. However, if the red dots do in fact represent galaxies, they appear to be too large to fit predictions for how fast galaxies form. The possible galaxies may be about 13 billion years old, forming just 500 to 700 million years after the Big Bang, but appear to contain as many stars as much more mature galaxies. Dr Erica Nelson, an assistant professor of Astrophysics at the University of Colorado, Boulder and one of the authors of that paper, joins Ira to talk about the observation and what could explain the confusing finding.   How These Russian Wasps Could Help Save Ash Trees How do you find an insect the size of your fingertip in a densely packed forest? For Jian Duan, the answer is simple: Follow the dead ash trees. On a rainy day in eastern Connecticut, Duan, a federal research entomologist with the U.S. Department of Agriculture, walked to a dying ash covered with holes. Peeling back the bark with a drawknife, he revealed a mess of serpentine tunnels. Curled up inside was one of his targets: a larva of emerald ash borer. “Let’s collect it,” Duan said, gesturing as his assistant handed him a pair of tweezers tied to a brightly-colored ribbon. (In case you’re wondering, the ribbon makes the tweezers easy to spot when they’re dropped on the leaf-covered ground.) But today Duan isn’t just collecting emerald ash borers. He’s also looking for their predator, one released here on purpose in 2019 and 2020: a wasp known as Spathius galinae (pronounced spay-see-us glee-nuh). “It’s from the Russian Far East,” Duan said, smiling. “Unfortunately, there are no common names for these parasitic wasps.” To read the rest, visit sciencefriday.com.     Vocal Fry Serves Up Treats For Toothed Whales Toothed whales—species like orcas, bottlenose whales, and dolphins—use echolocation to zero in on prey about a mile deep into the ocean. Until now, scientists couldn’t quite figure out how the whales were making these clicking sounds in the deep ocean, where there’s little oxygen. A new study published in the journal Science, finds the key to underwater echolocation is vocal fry. Although in whales it might not sound like the creaky voice that some people love to hate, the two sounds are generated in a similar way in the vocal folds. Ira talks with the study’s co-author, Dr. Coen Elemans, professor of bioacoustics and animal behavior at the University of Southern Denmark based in Odense, Denmark.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Medication Abortion Drug Faces Potential Nationwide Restriction A federal court case underway in Texas this week could have big implications for medication based abortion care across the U.S. The case involves the FDA’s approval of the drug mifepristone, which is used as part of a two-drug combination in most medication abortions. The plaintiffs in the case are arguing that the FDA went against its own guidelines regarding drug safety when it approved the medication in 2000, though the overwhelming evidence has shown the drug to be safe and effective. A ruling against the FDA could result in mifepristone prescriptions being banned nationwide. Maggie Koerth, senior science writer at FiveThirtyEight, joins John Dankosky to talk about the case and its implications. They also tackle other stories from the week in science, including investigations of the Earth’s inner core, a timeline for astronauts on board the ISS, and efforts to understand what “burnout” actually is.   A New Twist On Sowing Seeds Imagine sowing a handful of seeds on the ground—but instead of needing planting help from a rake or hoe, the seeds can determine for themselves when the ground is fresh from the rain and ready for planting, and burrow their own way into the damp soil. Some seeds, including varieties of Erodium species, can actually do that. They use their self-burying ability to adapt to arid climates. But in a recent study in the journal Nature, researchers describe a package, or wrapper that can give other kinds of seeds self-burying powers as well. The design adapts some of the shapes and techniques used by Erodium into a biodegradable corkscrew made of engineered wood, that can respond to moisture and uncoil to slowly drill a seed into receptive soil. Dr. Lining Yao, co-author of that report and director of the Morphing Matter Lab in Carnegie Mellon’s School of Computer Science, joins guest host Regina Barber to describe the seed delivery system, and what remains to be solved before it can be used in the wild.   A Long History Shadows New Fight Over California’s Shasta Dam A few years ago, I stumbled onto the story of the Winnemem Wintu people, an indigenous people of Northern California. Theirs is an epic tale and it grabbed hold of me. For several years, I tagged along with them whenever I could. I was around so much, they started teasing me. The large fuzzy windscreens of my recording setup earned me a nickname. The Winnemem Wintu and their close friends call me and my microphone Gray Squirrel. Nickname aside, I never took it lightly that the Winnemem Wintu let me into their space. For good reasons, many Native people are suspicious of outsiders. I understood their openness was special and rare. My greatest hope is that you will hear their story of struggle and resilience, of betrayal and a willingness to still believe in the good things to come – and that it will change you as it did me.Behind the Chief we see the top of Shasta Dam’s immense concrete spillway set against a background of dry, rolling hills. Shasta Dam stands 602 feet high. It’s the country’s 8th tallest. It turned California into the giant, agricultural engine that it is today. It also left a legacy of harm when it flooded the Winnemem and other Wintu people off their land. Read the rest at sciencefriday.com.   Rapper And Scholar Sammus Confronts AI In Hip-Hop Over the last six months, there’s been a lot of movement and discussion about the effects that generative AI will have on visual art and writing. But what about its effects on music—in particular, hip-hop? A few years ago, a deep fake of Kanye West rapping a verse from “Bohemian Rhapsody” by Queen went viral. It was created with just a few clicks using the program Uberduck, which can output AI-generated raps from text of the users’ choice. And it turns out that the rhythmic qualities that make hip-hop performers’ verses so spellbinding is exactly what makes them easier to mimic in deep fakes, as opposed to other genres of music. Guest host Regina Barber talks with rapper and music, science, and technology scholar Dr. Enongo Lumumba-Kasongo, also known as Sammus, about the unexpected crossovers between hip-hop and the growing field of generative AI. She is also an assistant professor of music at Brown University in Providence, Rhode Island.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

‘All That Breathes:’ A Story Of Two Brothers Saving New Delhi’s Raptors The Oscars are right around the corner, and one of the nominees in the documentary category is called “All That Breathes.” It tells the story of two brothers—Nadeem and Saud—who dedicate their lives to rescuing black kites, a type of raptor that dominates the skies of New Delhi. Since they were children, the brothers have rescued more than 25,000 of these birds, who are quite literally falling out of the thick, polluted, hazy sky. Their conservation efforts have triumphed over limited resources and periods of religious violence in New Delhi. Guest host John Dankosky speaks with Shaunak Sen, director of “All That Breathes,” about the making of the film, and how it’s a story of urban ecology, politics, and hope.     Why Won’t Museums Return Native American Human Remains? In 1990, the United States passed a groundbreaking human rights policy called the Native American Graves Protection and Repatriation Act—known as NAGPRA. It was designed to spur museums, universities, and federal agencies to return Native American human remains and cultural items back to the tribes they were stolen from. NAGPRA held a lot of promise, but now—33 years later—more than 110,000 Native American, Hawaiian, and Alaskan human remains are held up in research institutions. So why, decades later, have so many institutions failed to return remains? That’s the focus of a new report from ProPublica. ProPublica reporter Mary Hudetz joins guest host John Dankosky to discuss why NAGPRA fell short, and where to go from here.   Appreciating The Brilliance Of Benjamin Banneker Benjamin Banneker was a free Black man born in 1731, over a century before slavery was abolished in his home state of Maryland. Today, Banneker is perhaps best known for his role in drawing the original borders of Washington, DC. But he was also an accomplished naturalist and polymath. He was among the first to document the cicada’s 17-year life cycle. Banneker also taught himself astronomy and math, and published one of the country’s first almanacs. Guest host Regina Barber talks with Dr. Janet Barber, an independent researcher, writer, and social scientist (with no relation to Regina), and Dr. Asamoah Nkwanta department chair and professor of mathematics at Morgan State University, based in Baltimore, Maryland, about Benjamin Banneker’s life and scientific legacy.   The Supernatural Side Of Astronomical Events Throughout history, there have been events in the sky that have made people uneasy: Think supernovas, comets, and eclipses. It’s easy to understand why. Even when astronomical knowledge was limited, the skies were readily observable. So when things changed, it sometimes led people to see these events as omens. In ancient China, eclipses were thought to occur when a celestial dragon attacked and ate the sun. And in Incan culture, eclipses were seen as the sun god expressing displeasure, which sometimes led to human sacrifice. And in 1456, Halley’s Comet was excommunicated by the pope for being an instrument of the devil. There are scientific explanations for these events, of course. Co-host Regina Barber speaks with Dr. Samaiyah Farid, solar physicist and project scientist at the University Corporation for Atmospheric Research in Boulder, Colorado, about what’s behind these astrological omens.     Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Eyes In The Sky: The Science Behind Modern Balloons This month, the news cycle has been dominated by updates about suspicious objects being detected in the stratosphere. This bonanza started with a balloon from China, and escalated as four more objects—not all confirmed as balloons—have been shot down from the sky. Although this might sound like a new problem, there are probably thousands of balloons floating above us—some for spying, others for exploring near space, or studying weather patterns. Dr. David Stupples, professor of electronic and radio engineering and director of electronic warfare research at City University of London, joins Ira to talk about the science behind modern balloons: how they work, what they do, and just how common they are.   Low Income Patients Hit Hardest By Cancer Treatment Costs Being told you have cancer is not only terrifying, it’s expensive. In the year following a diagnosis, the average cost of cancer treatment is about $42,000, according to the National Cancer Institute. Some of the newer cutting-edge treatments may cost $1 million or more. While insurance may cover some or all of that cost, many people are uninsured or under-insured. And the bills add up. A quarter of patients with medical debt have declared bankruptcy or lost their home, according to an analysis conducted by KHN and NPR. While there’s been remarkable progress in treating cancers in the past several decades, less attention has been paid to just how astronomical the price tags can be. Researchers at Augusta University wanted to track the results of the financial burden after patients’ treatment was complete. They found that poorer patients were hit harder financially—which not only resulted in more bills, but also worse health outcomes. Ira talks with Dr. Jorge Cortes, co-author of this study and director of the Georgia Cancer Center at Augusta University, about the importance of making cost part of the discussion in developing new cancer therapies.   The Unseen World Of Seaweeds Chances are you don’t give much thought to seaweed unless you’re at the beach, or perhaps when you’re considering a dinner menu. But the thousands of seaweed species around the world are a key part of our coastal ecosystems. Seaweeds photosynthesize, provide food and shelter for marine animals, stabilize the coastlines, and even contribute to making your ice cream creamier (through an ingredient called carrageenans, extracted from red seaweeds in the Rhodophyceae family). Increasingly, they’re also being investigated as a source of biofuels and as biological factories, due to their fast-growing nature. Dr. John Bothwell, a phycologist at Durham University in the UK, has written a book in praise of seaweeds. In Seaweeds of the World: A Guide To Every Order, he highlights beautiful, unusual, and important species from each of the three seaweed lineages—green, red, and brown. In this segment, he talks with SciFri’s Charles Bergquist about some of his favorite species, where the seaweeds fit into the web of life, and the importance of seaweeds to the global ecosystem.   Why It Feels So Good To Eat Chocolate When you eat a piece of good chocolate, chances are you don’t just bite down and chew away. There’s a good chance you hold the chocolate in your mouth for a moment, feeling the silkiness as it softens, melting into a molten mass and mixing with your saliva. That gradual phase change process—as fats in the chocolate melt from solid to liquid—is a big part of the chocolate mouthfeel experience. Researchers at Leeds University in the UK have constructed an artificial tongue that doesn’t focus on the taste of a food, but rather its texture, and how that texture changes over time. Using the artificial tongue, they explored the textures of materials that can change phase in the mouth, such as chocolate, butter, and ice cream. They reported their findings recently in the journal ACS Applied Materials & Interfaces. The researchers found that in dark chocolate, the sensation in the mouth is governed largely by the fat content, as the surface of the chocolate begins to soften. A few moments later, as the chocolate melts completely and mixes with saliva, the fat content of the treat is less important to the mouthfeel experience. Dr. Anwesha Sarkar, an author of the report, joins Ira to talk about the research, the challenge of designing a lower-fat chocolate that might exploit these findings, and the importance of learning about textures to determine why people like—and don’t like—certain foods.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

UFOs? Balloons? Spy Cams? Here’s What’s Going On This week, the saga over UFOs, balloons, and spyware continues. The drama all started with a Chinese surveillance balloon, and then—one by one—governments kept finding others in the U.S. and Canada. Earlier this week, President Biden announced, “We don’t know yet exactly what these three objects were. But nothing right now suggests they are related to China’s spy balloon program or that they were surveillance vehicles from any other country.” So what do we know about these balloons? And why is this such a big deal all of a sudden? Casey Crownhart, climate reporter at the MIT Technology Review, joins Ira to discuss the hullabaloo surrounding these flying objects and other science news of the week. They also talk about the outbreak of Marburg virus in Equatorial Guinea, Tesla agreeing to open some charging stations to other EV drivers, the startups trying to remove methane from the air, what a pencil-shaped robot taught scientists about the “Doomsday Glacier,” and why researchers modeled a new camera after cuttlefish eyes.   How The Western U.S. Could Rebuild Its Water Infrastructure In early January, California was inundated with record-breaking rainfall. The state was battered by back-to-back storms, which caused severe flooding and power outages. But could there be a silver lining in those storm clouds? Given the historic drought conditions plaguing the western U.S., a way to collect or divert rainwater to use when the dry season hits is especially appealing. However, potential solutions are not within easy reach. Ira talks about the limitations and opportunities of storing and diverting rainwater with Dr. Andrew Fisher, hydrogeologist and professor of earth and planetary sciences at the University of California, Santa Cruz. Later, Ira is joined by Dr. Sharon Megdal, director of the University of Arizona’s Resources Research Center, to talk about the drivers of the water crisis and some of the policy solutions being floated to solve the problem.   Ohio Residents Want Answers About Risks Of Train Derailment Hundreds of people packed the high school gymnasium in East Palestine, Ohio, Wednesday evening, trying to get some answers about whether they were safe in their homes after an explosion and the release of numerous toxic chemicals following the train derailment two weeks ago. What started as an open house with tables set up around the floor for the US EPA, the Ohio EPA, the state Division of Wildlife, and the county health department to answer individual questions morphed into a town hall meeting. Residents sat in bleachers and yelled their questions to the officials. Many were angry, largely because Norfolk Southern, the rail operator, did not show up to the meeting. East Palestine Mayor Trent Conaway, surrounded by the media, said the company feared for the safety of its employees because there was so much anger against them. Conaway said people keep blaming him for this horrible incident, and it’s not his fault. Read the rest at sciencefriday.com.   Lion’s Mane Mushrooms Improve Memory, Study Finds For centuries, the lion’s mane mushroom has been used in traditional Chinese medicine for a variety of ailments, including strengthening memory. A recent study from the Queensland Brain Institute confirms what herbalists have long said: There are properties of this mushroom that build brain cells. In mice, these properties promoted neuron growth when diluted in water, resulting in better hippocampal memory. This result is a very good sign that the properties in lion’s mane mushrooms can protect against dementia and Alzheimer’s, the researchers behind the study say. Using the isolated components of the mushroom could be a step forward in the treatment of these devastating brain conditions. Joining Ira to talk about this study is the study’s co-author, Dr. Ramon Martinez-Marmol, research fellow at the Queensland Brain Institute, based in Brisbane, Australia.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Rethinking The Future Of Dementia Care Scientists estimate that the number of people living with dementia will triple within the next 30 years, but healthcare systems, policies, and public health measures in the US aren’t prepared to accommodate this growing population. This week, we’re digging into dementia care, and taking listener calls live. Alzheimer’s is the leading cause of dementia. Ira talks with Dr. Suman Jayadev, a neurogeneticist at the University of Washington School of Medicine, about the biology of Alzheimer’s, and where we stand with treatments. Then, the conversation turns to the future of dementia care: What are we doing right? What needs to change? And how can we rethink the future of dementia care? Ira speaks with Dr. Tia Powell, the director of the Montefiore-Einstein Center for Bioethics at the Albert Einstein College of Medicine and the author of the book Dementia Reimagined, as well as Dr. Nathaniel Chin, a geriatrician and assistant professor at the University of Wisconsin.   To learn more about dementia and access resources, visit sciencefriday.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

How Scientists Predict Where Earthquakes Will Strike Next The pair of earthquakes that hit Turkey and Syria this week left the region grappling with death and destruction. Despite the region being seismically active, this particular area hadn’t seen an earthquake of this size for decades. There are ways of knowing where the next big earthquakes will happen—but not when. Scientists use knowledge of fault lines and historical data to make their predictions, but saving areas from mass casualties often relies on infrastructure policies. Building codes that prioritize strong buildings can save lives, but older structures remain vulnerable. Across the globe, in California, the health impacts of electric vehicles are beginning to be seen. A study published this month finds that for every 20 EVs in a zip code, asthma-related visits to the emergency room drop by 3.2%. This is a striking number for a technology that’s just now becoming more commonplace. Joining Ira to talk about these stories and more is Umair Irfan, staff writer at Vox, based in Washington, D.C.   ChatGPT And Beyond: What’s Behind The AI Boom? The past few months have seen a flurry of new, easy-to-use tools driven by artificial intelligence. It’s getting harder to tell what’s been created by a human: Programs like ChatGPT can construct believable written text, apps like Lensa can generate stylized avatars, while other developments can make pretty believable audio and video deep fakes. Just this week, Google unveiled a new AI-driven chatbot called Bard, and Microsoft announced plans to incorporate ChatGPT within their search engine Bing. What is this new generation of AI good at, and where does it fall short? Ira talks about the state of generative AI and takes listener calls with Dr. Melanie Mitchell, professor at the Santa Fe Institute and author of the book, Artificial Intelligence: A Guide for Thinking Humans. They are joined by Dr. Rumman Chowdhury, founder and CEO of Parity Consulting and responsible AI fellow at the Berkman Klein Center at Harvard University.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

How Grief Rewires The Brain Being a human can be a wonderful thing. We’re social creatures, craving strong bonds with family and friends. Those relationships can be the most rewarding parts of life. But having strong relationships also means the possibility of experiencing loss. Grief is one of the hardest things people go through in life. Those who have lost a loved one know the feeling of overwhelming sadness and heartache that seems to well up from the very depths of the body. To understand why we feel the way we do when we grieve, the logical place to turn is to the source of our emotions: the brain. A new book explores the neuroscience behind this profound human experience. Ira speaks to Mary-Frances O’Connor, author of The Grieving Brain: The Surprising Science of How We Learn from Love and Loss, a neuroscientist, about adjusting to life after loss.   Midwest Aims To Add Large Indoor Animal Farms, Despite Concerns Legislation and programs in states like Missouri and Nebraska are paving the way to welcome large livestock operations by limiting local control over the facilities. Some rural residents worry about the potential pollution and decreased quality of life that will bring.In Cooper County, Missouri, CAFOs are a controversial topic. Susan Williams asked to meet in a small local library to talk about it, hoping that there wouldn’t be anyone around. Even in this quiet atmosphere, she’s nervous about people overhearing the conversation. “I just don’t want the whole town to hear me,” she said. Concentrated animal feed operations, commonly called CAFOs, are large animal facilities that hold thousands of head of livestock. Iowa leads the Midwest in the number of CAFOs with about 4,000 of them. However, in recent years, laws and programs have paved the way for CAFOs to operate in other Midwestern states, including Missouri and Nebraska. That’s worrying residents like Williams, a retired elementary school principal and a farmland owner from Clarksburg, Missouri. Back in 2018, a large hog operation called Tipton East planned on moving in less than a mile away from her house. The size of the operation, about 8,000 hogs, concerned her, especially since she grew up with a small hog farm. “Just the smell and the waste that you had was tremendous with that,” she said. “And I couldn’t imagine what it would be like with that many hogs.” Read the rest on sciencefriday.com   Blending The Sounds Of Climate Change With Appalachian Music Daniel Bachman is an acclaimed musician, known for his unique blend of Appalachian-inspired folk music and meditative drones. But, for his latest album, titled Almanac Behind, he wanted to try something a little different. Bachman lives in central Virginia, which has recently experienced multiple extreme weather events influenced by climate change. Unusually heavy snow in January 2022 caused power outages and trapped drivers in their cars on highways. Later in the year, intense rainfall led to downed power lines and flooding. And wildfires are becoming increasingly common in the Appalachian region. “I had the idea to document everything that we experienced through the end of this recording process,” he said. With the help of family and friends, Bachman gathered field recordings of these sounds of climate change, and weaved them together with the banjo and guitar. “It did feel like I was working collaboratively with non-human partners,” he said. “It makes me feel better to work with these forces, instead of trying to constantly push them away.” Bachman also talks about his work as an independent scholar, and how the traditions of Appalachian folklore influenced his view of the album as a climatological historical document.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Wind And Solar Were Europe’s Top Energy Sources In 2022 The European Union reached a major renewable energy milestone in 2022. For the first time, wind and solar generated more energy in the European Union than any other power source. Ira talks with science writer Roxanne Khamsi about Europe’s energy future and other top science stories of the week, including deer harboring old COVID strains, an endangered marsupial who’s losing a lot of sleep in search of sex, and why mammals live longer in groups.   U.S. Approves First Small Nuclear Reactor Design Late last month, the U.S. Nuclear Regulatory Commission gave final approval to the first small-modular nuclear reactor design, known in the industry as SMR. It’s not the kind of power plant you might picture when you think of nuclear—gone is the massive cooling tower and tall, domed containment building, in favor of a 15-foot-diameter steel cylinder equipped with passive cooling. And instead of being bespoke designs built to order on site, these reactors can be manufactured in a factory and hooked together in the field—an approach that can shave years off the construction time for a new nuclear facility. Read the rest at sciencefriday.com.   ’The Last Of Us’ Hands Fungi The Spotlight The Last of Us, a new TV show from HBO, has had audiences hooked from the very first episode. The sci-fi show and the video game it’s based on tells the story of people trying to survive a mass fungal outbreak: one that turns ordinary people into murderous, mind-controlled monsters. The fungus in the story, Cordyceps, is a real one. It’s known to take over the minds of insects like ants, moths, and beetles and control them to advance its own survival, but that doesn’t happen with humans. Dr. Patty Kaishian, mycologist and visiting professor of biology at Bard College, joins Ira to talk about the science behind The Last of Us. They dig into what’s real, what’s fiction, and how fungi shape our lives.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Meet The Blind Birder Reimagining Accessibility In The Outdoors For many blind and low vision people, accessing outdoor spaces like parks can be challenging. Trails are often unsafe or difficult to navigate, signs don’t usually have Braille, guides generally aren’t trained to help disabled visitors, and so on. But nature recordist Juan Pablo Culasso, based in Bogata, Colombia, is changing that. He’s designed a system of fully accessible trails in the cloud forests of southwest Colombia that are specifically tailored to help visually disabled people connect with nature. The trails are the first of their kind in the Americas, and Culasso drew on his own experiences as a blind person and a professional birder to design the system. He talks with Maddie Sofia about how he designed the trail system and takes listeners on an adventure through the cloud forest he works in.   How Many Glasses Of Water A Day Do You Actually Need? If you follow health or fitness influencers, at some point you’ve probably heard something about people needing six to eight ounces glasses of water a day to be healthy. The question of the right amount of water needed for health and happiness is still an open one, and varies from person to person. But a recent study in the journal Science looked at just how much water people actually do consume each day. The study didn’t just ask people how many sips they had taken. Instead, it tracked the amount of water that flowed through the bodies of over 5,000 people around the world, using labeled isotopes to get data on “water turnover”—how much water was consumed and excreted. The researchers found a large range of water use, driven in part by differences in body size and socioeconomic status. A small, not very active woman might drink less than two liters per day, while a large, very active woman might gulp almost eight liters a day, a four-fold difference. Dr. Dale Schoeller, a professor emeritus in the Department of Nutritional Sciences and the Biotechnology Institute at the University of Wisconsin, Madison, joins SciFri producer Kathleen Davis to talk about the study, the importance of water consumption, and how people can do better at estimating the amount of water they need.   Road Salt Is Washing Into The Mississippi River…And It’s Not Washing Out This winter has already brought significant snowfall to much of the U.S. Historically, more snow has meant more road salt. It’s an effective way to clear roads — but also brings cascading environmental impacts as it washes into rivers and streams. But amid one powerful winter storm that walloped the Midwest in December, employees from the La Crosse County Facilities Department did something a little different. As usual, they clocked into work well before dawn to plow the county’s downtown parking lots. They were followed by facilities director Ryan Westphal, who walked each of the lots, checking for slick spots. Finding none, he didn’t lay any salt down on top. That’s a major departure from how he would have handled the situation a few years ago – before their department made the decision to dramatically cut back on salt use to prevent it from flowing into waters like the nearby Mississippi River, which new data show has been growing saltier for decades. Under the previous protocol, in Westphal’s words, his crew would have “salted the crap” out of the lots after a snowfall like this, without giving deference to whether they actually needed it. Today, there’s a careful calculation after each time it snows to ensure they’re using just the right amount of salt. To read the rest, visit www.sciencefriday.com.   In ‘The Terraformers,’ Science Fiction Reveals Real-World Challenges In her novel The Terraformers, author Annalee Newitz takes readers thousands of years into the future to a far-away planet that’s under construction. It’s in the process of being terraformed, or transformed into a more Earth-like world that can support human life. The main character Destry, a ranger for the Environmental Rescue Team, and her partner, Whistle the flying moose, are working on the corporate-owned planet when they encounter an underground society. The Terraformers explores themes of resilience, colonization, conservation, equity, and capitalism through a sci-fi lens as Newitz invites readers to reimagine a new future. Guest host Maddie Sofia talks Newitz about the inspiration behind the book and how real-world problems made their way into sci-fi.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

What’s Behind The Strange Slowing Of The Earth’s Core? Even though some days feel more chaotic than others, the rotation of the surface of the planet proceeds at a pretty constant rate—about one full rotation every 24 hours. But the rotational speed of the inner core is less stable, and has been known to shift over time. Now, researchers are reporting in the journal Nature Geoscience that according to seismic data, the Earth’s inner core may have recently paused its rotation, and could even go on to reverse direction relative to the rest of the planet. Tim Revell, deputy United States editor of New Scientist, joins SciFri producer Kathleen Davis to talk about the shift in rotation and other stories from the week in science, including shared language characteristics between humans and wild apes, and a wolf population that has started to enjoy snacking on sea otters. They’ll also talk about an ancient Egyptian mummy with a heart of gold, research into why some mushrooms glow in the dark, and a tiny robot with morphing liquid metal capabilities straight out of Hollywood.   Here’s What We Know About Long COVID, Three Years Later Just a few months into the pandemic, it became clear that in some people, the SARS-CoV-2 virus caused a cascade of symptoms for months after their initial infections. These lingering effects are now commonly referred to as Long COVID. And as long as the pandemic barrels on, the population of Long COVID patients will continue to grow. Over the past three years, researchers have closely studied these symptoms, seeking to better understand its underlying causes and improve treatment. Guest host Maddie Sofia talks with Hannah Davis, co-founder of the Patient-Led Research Collaborative and co-author of a recently published comprehensive review on the state of Long COVID research, and Dr. Bhupesh Prusty, principal investigator at the Institute for Virology and Immmunobiology at the University of Würzburg in Germany.   Meet The Art Sleuths Using Science To Find Frauds At the end of last year, a big case was decided in the world of art crime. Qatari Sheikh Hamad al Thani won a case against his former art dealer, after nearly $5 million dollars worth of purchased ancient artifacts were all determined to be fake. Among the artifacts was a Hari Hara sandstone statue purported to be from 7th century Vietnam. In reality, the piece was made in 2013. Art experts say forged antiquities are extremely common in museums and private art collections: Former director of the Metropolitan Museum of Art Thomas Hoving estimated 40% of artworks for sale at any given time were fake. The task of determining what art is real and what art is fake falls to scientists, who use tools like X-rays and carbon dating to get accurate readings of time and place of origin for artifacts. Joining guest host Kathleen Davis to talk about this are Erin Thompson, art crime professor at the City University of New York, and Patrick Degryse, professor of archeometry at the Katholieke Universiteit Leuven in Belgium. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Why Are Gas Stoves Under Fire? If you were online at all last week, you probably encountered conversations about gas stoves. The sudden stove discourse was sparked by a comment made by a commissioner on the Consumer Products Safety Commission (CPSC) to a Bloomberg reporter, in which the commissioner discussed plans to regulate gas stoves. Those comments morphed via repetition into inaccurate rumors of an impending ban on stoves fueled by ‘natural gas,’ or methane, currently used in around 38% of US homes. The CPSC later clarified that the agency was “researching gas emissions in stoves and exploring new ways to address health risks,” but was not looking to ban gas stove use. That said, studies have found that gas stoves are a major source of indoor air pollution, and can emit nitrogen oxides that have been found to exacerbate asthma symptoms. Last summer, the American Medical Association adopted a resolution informing physicians of the stoves’ link to asthma. A report published in December estimates that over 12% of childhood asthma cases may be attributable to gas stove emissions. The stove debate flares beyond asthma, however. Some municipalities, including New York City, are moving to phase out the use of natural gas in new construction for reasons related to climate change. And Washington state has put in place rules mandating the use of electric heat (with fossil fuel-derived heating allowed as a backup option) in new construction this year. Rebecca Leber, senior reporter covering climate at Vox, joins Ira to explain the heated words over gas stove use, and how they fit into a larger battle over fossil fuel usage and climate change. What Will The Next Generation Of COVID-19 Vaccines Look Like? The first COVID-19 vaccine was approved just over two years ago. Since then, the virus continues to mutate. With each new variant, the virus seems to evade our current vaccines more effectively, faster than we can make effective new mRNA boosters. Coronaviruses frequently spill over from animals to humans, like the original SARS and MERS viruses, which are both types of coronaviruses. Researchers are working on the next generation of coronavirus vaccines that aim to protect us against multiple emerging variants—and even prevent future pandemics. Ira talks with Dr. Pamela Bjorkman, professor of biology and bioengineering at the California Institute of Technology, about her work to develop a vaccine that would protect against several types of coronaviruses. And later, Ira talks with Dr. Akiko Iwasaki, professor of immunobiology and molecular, cellular, and developmental biology at Yale University, about the nasal vaccine she’s researching and the hurdles in bringing it to market.     The Sweet Song Of The $7 Violin Stringed instruments can be a joy to the ears and the eyes. They’re handcrafted, made of beautiful wood, and the very best ones are centuries old, worth hundreds of thousands of dollars, or sometimes even millions. But there’s a new violin in the works—one that’s 3D-printed. It costs just a few bucks to print, making it an affordable and accessible option for young learners and classrooms. Dr. Mary-Elizabeth Brown is a concert violinist and the founder and director of the AVIVA Young Artists Program in Montreal, Quebec, and she’s been tinkering with the design of 3D-printed violins for years. She talks with Ira about the science behind violins, the design process, and how she manages to turn $7 worth of plastic into a beautiful sounding instrument. Learn more about the project, as well as its progress, beta testing, and release date at www.printaviolin.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Why Are Children’s Antibiotics So Hard To Find Right Now? Mary Warlo has been extremely worried lately. Her baby Calieb, who is six months old, has sickle cell disease. In early December he went for a few days without liquid penicillin, a medication that he—and thousands of other children in the U.S.—rely on to prevent potentially life threatening infections. Warlo couldn’t easily find a pharmacy in Indianapolis that had the medicine in stock. She and her husband frantically drove around for hours, stopping at five different pharmacies before they were able to get their prescription filled. “It was extremely stressful and I am worried about what will happen the next time we need to fill his prescription two weeks from now,” she said. Pediatric sickle cell disease specialists say they are alarmed by signs that the stock of liquid penicillin is dwindling in some places. They say children’s lives depend on this medication, and a penicillin shortage could spell disaster. Read the rest at sciencefriday.com.   Bats Use Death Metal 'Growls' To Make Social Calls What do death metal vocalists and bats have in common? Both use their ventricle folds, or “false vocal cords,” to extend their vocal ranges to hit a lower register. This gives bats a huge vocal range—seven full octaves. Humans typically tap out at about three to four octaves. Even people with really impressive vocal ranges, like Mariah Carey, just can’t compete with a bat. A study recently published in the academic journal PLOS Biology examines how and why different anatomical structures might help bats achieve such extreme frequency range. Ira talks with one of the study’s authors, Coen Elemans, a professor in bioacoustics and animal behavior at the University of Southern Denmark based in Odense, Denmark.   Can Science Answer Life’s Biggest Questions? Dr. Alan Lightman has been around the block a few times. Over the past five decades, he has been a theoretical physicist, professor at MIT, and bestselling author—often at the same time. His most notable novel, Einstein’s Dreams, has been adapted into dozens of plays and musicals since its publication in 1992, becoming one of the most famous examples of mixing art and science.  Lightman’s work follows a philosophical way of thinking about life’s biggest questions, like the origins of consciousness. His new venture brings this way of thinking to the silver screen. Searching: Our Quest for Meaning in the Age of Science consults scientists and faith leaders to grapple with some of these theoretical quandaries. And Lightman gives a good argument for why the journey to these answers can be more impactful than the answers themselves.  Ira speaks with Alan Lightman about the new program, available to watch now online and on your local public television station. 

Technology Trends to Watch in 2023 The start of a new year is often a time to contemplate the future and what might lie ahead on the horizon. This week, the magazine MIT Technology Review unveiled its annual list of 10 technologies to watch—innovations that it thinks are on the verge of rapid adoption or causing significant cultural changes, or already in the process of creating such a shift. This year’s list includes items from the amazing astronomy enabled by JWST, to the ‘inevitable’ electric vehicle, as well as technologies that are further down the road, such as the ability to grow replacement organs to order. Amy Nordrum, an executive editor at MIT Technology Review, joins Ira to talk about some of the innovations and the difficulties of narrowing a universe of possibilities into a list of 10 key technologies to watch. They also discuss some technologies highlighted in the past that went on to make a big difference—cloud computing, anyone?—as well as some projects the magazine highlighted in the past that did not turn out to be as significant as once thought.   Are Animal ‘Pests’ Really The Villains We Make Them Out To Be? Join us as we enter the rat’s nest. The snake pit. The mouse trap. What, precisely, is it that untangles an animal friend from foe? This week, we’re taking a close look at pests—critters with a notorious reputation for being destructive, annoying, and even villainous. We’re also going to get a little philosophical and ask: What do those opinions tell us about ourselves? Science journalist Bethany Brookshire is the author of Pests: How Humans Create Animal Villains. She joins Ira to talk about her new book, challenge our perspectives on what makes a pest, and answer listener’s pest-y questions live. To read an excerpt of the book, visit sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Early Migration To North America Likely Wasn’t A One-Way Road The story of how early humans migrated to North America might not be as simple as we once thought. The prevailing theory was that ancient peoples traveled from Siberia to modern-day Alaska using the Bering strait as a land bridge. But new genomic research, published in Current Biology, reveals movement in the opposite direction, back to Asia, as well. Ira talks with Sophie Bushwick, technology editor at Scientific American, about the new research, and other top science stories of the week, including a new AI voice generator, a green comet visible visit in the night sky for the first time in 50,000 years, and how a specific atmospheric weather pattern caused historic flooding in California. Lab-Grown Meats Are Finally Inching Closer To Commercial The United States is one of the largest consumers of meat in the world, with the average American eating 273 pounds of meat per year That’s not to say that tastes aren’t changing: Nearly a quarter of Americans say they have cut down on meat consumption, and 41% of Americans under 50 have tried plant-based meat. There’s been a wave of companies and academic institutions working on cellular agriculture—a fancy way of saying animal products grown from cells in labs, and not from a meat farm. While lab-grown meat is not available in grocery stores yet, the FDA gave approval to make meat from animal cell culture for the first time in November. Upside Foods, the company making the product, makes chicken from cells grown in tanks. Joining Ira to talk about cell agriculture are Andrew Stout, cellular agriculture biologist based in Boston, Massachusetts, and Aryé Elfenbein, co-founder of Wildtype, based in San Francisco, California, a company working on growing seafood from cells.

FDA Expands Pharmacy Options for Abortion Pills This week, the FDA finalized rules that would allow more retail pharmacies to stock and fill prescriptions for the abortion drug mifepristone. Previously, the medication had been available only via certain specialty pharmacies or via mail order. Now, major retail pharmacies such as CVS and Walgreens can apply for permission to fill prescriptions for the medications, which now account for about half of all abortions performed in the United States. The immediate effects of the rule change are not entirely clear, however—a patchwork of state and local laws govern the availability of these medications, and may prevent their availability in some areas. Around half of the states have some restriction on abortion pills. Katherine Wu, science writer at The Atlantic, joins Ira to unpack the rule change and other stories from the week in science, including news of a new surging COVID variant called XBB.1.5, the injury to NFL player Damar Hamlin, a stray snowy owl visiting southern California, a likely farewell to the Mars InSight lander, and a study looking at how an island rat population can affect offshore coral reefs.   Meet The Comedians Bringing A Sense Of Humor To Science A scientist and a comedian walk into a bar—for an interview about the craft of science comedy. Ira talks to comedians Chuck Nice, Kasha Patel, and Kyle Marian Viterbo about their work bringing the joke format to science communication. While all three have different approaches to science—whether it’s sneaking the knowledge into “regular” jokes, or going straight for the factual jugular—they agree that the practice of stand-up has much in common with the scientific process. “We normally start with an observation or a question,” says Nice. “The experimentation is the joke itself, seeing whether or not it will get a laugh… you have to tell it in front of an audience. And after that you go, ‘Wow, that sucked. I can’t believe that wasn’t funny.’” Plus, why comedy can itself be a science, and what good comedy has in common with good (science) communication. “It’s a long term skillset in playing with, and communicating, and connecting with your audience,” says Viterbo. “To be able to really listen to our audience, which these days we need more of.”

How Redlining Shaped Baltimore’s Tree Canopy Redlining was pervasive in American cities from the 1930s through the late 1960s. Maps were drawn specifically to ensure that Black people were denied mortgages. These discriminatory practices created a lasting legacy of economic and racial inequality which persists today. Less obvious is how redlining has shaped nature and the urban ecosystem. A recent study found that previously redlined neighborhoods in Baltimore have fewer big old trees and lower tree diversity than other parts of the city. These findings are part of the Baltimore Ecosystem Study, a collaborative research project which has tracked the city’s changing urban environment for the past 25 years. But it’s not all bad news. The city has a comprehensive tree replanting initiative and is now working to restore its tree canopy. In 2007, Baltimore set a goal to increase the tree cover from 20% to 40% by 2037. Since then, officials have been working closely with non-profit community organizations to plant trees all over the city—especially in previously redlined and otherwise under-served neighborhoods. Ira talks with Karin Burghardt, assistant professor of entomology at the University of Maryland about her latest research into the effect of redlining on Baltimore’s tree ecosystem. And later, Ira speaks with Ryan Alston, communications and outreach manager for Baltimore Tree Trust, which has planted over 16,000 trees in the city to date.   What’s Going On Underground With Gophers? Pocket gophers, also known as gophers, are often viewed as a pest species. But their extensive tunnel networks are good for soil and help shape healthy ecosystems everywhere gophers are found. Producer Christie Taylor talks to two University of Florida researchers who investigated the mystery of the pocket gopher—why does a single gopher build such a large network of tunnels? What they found led to deeper questions about how gophers get enough food for their extensive energy needs, and whether they might even be cultivating roots in a deliberate act of farming. Plus, why pocket gophers deserve our appreciation as ecosystem engineers.   How This Chemist Is Turning Agricultural Waste Into Water Filters Activated carbon filters have become common household items as water filters in pitchers, or directly on your faucet. These activated carbon filters are also used in industrial processes like wastewater treatment and to filter out chemicals released in smokestacks. Dr. Kandis Leslie Abdul-Aziz, assistant professor of chemical and environmental engineering at University of California Riverside, has created activated carbon filters from agricultural waste like corn stover and orange peels. Abdul-Aziz talks with Ira about her research, and what it will take to shift manufacturing processes to be more sustainable and less harmful to the planet.     The Nose Knows When It’s Cold—And It May Get You Sick It’s something most of us know from experience: When it’s cold outside, you’re likely to see a lot of people sneezing and coughing. Upper respiratory infections, like the flu, colds or even COVID-19 are common in winter. But understanding the biological reasons why hasn’t been known—until now. Researchers at Mass Eye and Ear cracked the mystery in the Journal of Allergy and Clinical Immunology last month. The study points to the cold-sensitive nose—specifically extracellular vesicles inside nose cells—as the key immune response impacted by temperature. It turns out that a temperature drop of about 40 degrees Farenheit triggers a severe decrease in the quantity and effectiveness in EVs, decreasing the body’s ability to prevent infection. Ira speaks to the study’s lead author Benjamin Bleier, associate professor at Mass Eye and Ear in Boston, Massachusetts, about this breakthrough and the impact it could have on future treatments for respiratory illness.   By Hiding Their Blood, These Frogs Pull Off The Ultimate Disappearing Act Glass frogs have a superpower: If you look at them from above, they look like regular green frogs. But if you flip one over, you can see right into their bodies: hearts, intestines, bones, and all. As these frogs doze off, however, something changes: They disappear. Well, almost. A new study shows that the frogs can hide their red blood cells as they sleep, becoming expert camouflagers. Dr. Carlos Taboada, a biologist at Duke University, is a co-author on this study and he joins Ira to talk about the glass frogs’ tricks.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Keeping The Bubbly In Your Holidays, With Fizzical Science As the year winds to a close, you may be attending gatherings where a festive flute of champagne is offered. Champagne production starts out with a first fermentation process that turns ordinary grape juice into alcoholic wine. A second fermentation in the wine bottle produces the dissolved carbon dioxide responsible for the thousands of fizzy bubbles that are a distinctive part of the experience of drinking champagne and other sparkling wines.  In this archival interview from 2012, Ira talks with Stanford University chemist Richard Zare about the interplay between temperature, bubbles, the surface of the glass in which the drink is served, and surprising factors such as lipstick chemistry that can influence the sparkliness of each sip, and delves into the age old question of the best ways to keep an opened bottle of champagne bubbly for longer.     What Was It Like To Witness The End Of The Dinosaurs? 66 million years ago, a massive asteroid hit what we know today as the Yucatán Peninsula of Mexico. Many people have a general idea of what happened next: The age of the dinosaurs was brought to a close, making room for mammals like us to thrive. But fewer people know what happened in the days, weeks, and years after impact. Increased research on fossils and geological remains from this time period have helped scientists paint a picture of this era. For large, non-avian dinosaurs like Triceratops and Tyrannosaurus rex, extinction was swift following the asteroid impact. But for creatures that were able to stay underwater and underground, their post-impact stories are more complicated. Joining Ira to discuss her book The Last Days of the Dinosaurs is Riley Black, science writer based in Salt Lake City, Utah.   ‘I Will Not Be Vole Girl’—A Biologist Warms To Rodents The path to becoming a scientist is not unlike the scientific process itself: Filled with dead ends, detours, and bumps along the way. Danielle Lee started asking questions about animal behavior when she was a kid. She originally wanted to become a veterinarian. But after being rejected from veterinary school, she found a fulfilling career as a biologist, doing the type of work she always wanted to do—but never knew was possible for her. Science Friday producer Shoshannah Buxbaum talks with Dr. Danielle Lee, a biologist, outreach scientist, and assistant professor in biology at Southern Illinois University Edwardsville in Edwardsville Illinois about what keeps her asking questions, what rodents can help us understand about humans, and the importance of increasing diversity in science. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

This Soundscape Artist Has Been Listening To The Planet For Decades Jim Metzner is one of the pioneers of science radio—he’s been making field recordings and sharing them with audiences for more than 40 years. He hosted shows such as “Sounds of Science” in the 1980s, which later grew into “Pulse of the Planet,” a radio show about “the sound of life on Earth.” Over the decades, Metzner has created an incredible time capsule of soundscapes, and now, his entire collection is going to the Library of Congress. John Dankosky talks with Metzner about what he’s learned about the natural world from endless hours of recordings and what we can all learn from listening. Plus, they’ll discuss some of his favorite recordings. To hear the best audio quality, it might be a good idea to use headphones if you can.   The Surprising Animal Science Behind Jordan Peele’s ‘Nope’ One of the summer’s biggest blockbusters has been the alien horror film Nope, from director Jordan Peele. Nope has elements of many classic UFO films, with the Spielbergian charm of Close Encounters of the Third Kind, and the horror and destruction from The War of the Worlds. For the spoiler-averse, this is your warning to turn back now. The big twist in Nope that differentiates it from other alien films is that it isn’t a UFO (or UAP if you’re up to date on the lingo) hanging out in the skies above our main characters. The saucer-shaped figure is the alien itself. Writer and director Jordan Peele attributes much of the inspiration for the alien as coming from sea creatures. He enlisted the help of scientific consultants including marine biologist Kelsi Rutledge to help bring the creature, known in the film as Jean Jacket, to life. She even gave it a scientific name: Occulonimbus edoequus, meaning “hidden dark cloud stallion eater.” Kelsi, who is a PhD candidate at UCLA in Los Angeles, California, talks to Ira about the ingredients that went into creating a new creature to scare audiences.   Making A Meal Fit For An Astronaut Life on the International Space Station throws some wrenches into how food and eating work. There’s very little gravity, after all. And there are big differences between nutritional needs on Earth and in space. Astronauts must exercise two hours each day on the International Space Station to prevent bone and muscle loss, meaning daily caloric intake needs to be somewhere between 2,500 and 3,500 calories. Sodium must also be reduced, as an astronaut’s body sheds less of it in space. Astronauts also have an increased need for Vitamin D, as their skin isn’t able to create it from sunlight as people on Earth do. So, how do all these limitations affect the food astronauts eat? Joining guest host Kathleen Davis to answer these gustatory questions is Xulei Wu, food systems manager for the International Space Station in Houston, Texas. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Glitter Gets An Eco-Friendly Glimmer Glitter—it’s everywhere this time of year. You open up a holiday card, and out comes a sprinkle of it. And that glitter will seemingly be with you forever, hugging your sweater, covering the floor. But glitter doesn’t stop there. It washes down the drain, and travels into the sewage system and waterways. Since it’s made from microplastics, it’s never going away. As it turns out, all that glitters is not gold—or even biodegradable. But what if you could make glitter that was biodegradable? Silivia Vignolini, professor of chemistry at the University of Cambridge joins Ira to discuss her latest discovery—eco-glitter made from plant cellulose. The Resurrection Of The American Chestnut At the turn of the 20th century, the American chestnut towered over other trees in forests along the eastern seaboard. These giants could grow up to 100 feet high and 13 feet wide. According to legend, a squirrel could scamper from New England to Georgia on the canopies of American chestnuts, never touching the ground. Then the trees began to disappear, succumbing to a mysterious fungus. The fungus first appeared in New York City in 1904—and it spread quickly. By the 1950s, the fungus had wiped out billions of trees, effectively driving the American chestnut into extinction. Now, some people are trying to resurrect the American chestnut—and soon. But not everyone thinks that’s a good idea. Reporter Shahla Farzan and “Science Diction” host and producer Johanna Mayer bring us the story of the death and life of the American chestnut.   A DNA Map You Can Touch—Or Walk Through When science involves visualizing the intricate movements of DNA through time and space, examining minutiae like how DNA folds and rearranges itself during cell division, or the relationships between miniscule beads on microscopic strings, the data can get complicated really fast. Which is why biophysicist Adam Lamson is collaborating with artist Laura Splan in a project the two of them call ‘Sticky Settings.’ It’s a kind of an inside joke about the nature of DNA strands, and the kinds of digital transformations that can be applied to data in animation software. But the result of this partnership has been anything but a joke. From giant tapestries that present maps of DNA in colorful, tactile formats, to otherworldly animations set to music, their art invites a non-scientific audience to literally walk into the processes our own cells are undergoing every day. Producer Christie Taylor talks with Splan and Lamson about their partnership, and the natural intersection between an artist’s creativity and a scientist’s. Plus how an artist’s interpretation can bring new insights to difficult data.   The Secret Life Of Mistletoe (When It’s Not Christmas) This time of year, it’s not uncommon to see a little sprig of greenery hanging in someone’s doorway. It’s probably mistletoe, the holiday decoration that inspires paramours standing beneath it to kiss. But as it turns out, we may have miscast mistletoe as the most romantic plant of the Christmas season. In reality, the plant that prompts your lover’s kiss is actually a parasite. Ira talks with evolutionary biologist Josh Der about the myth and tradition behind the parasitic plant, and what it may be up to the other 11 months of the year.  

A Look Back At The Top Science Stories of 2022 2022 was chock full of big science news. Scientists announced an important milestone toward the feasibility of nuclear fusion. Doctors transplanted a pig heart into a human for the very first time. And NASA returned to the moon with the successful launch of the Artemis I mission. Ira recaps the year in science news with Tim Revell, deputy United States editor of New Scientist, including what the James Webb Space telescope has taught us about our universe, the significance of ChatGPT on the future of artificial intelligence, the spread of Mpox, and more.   How The Humble Beaver Shaped A Continent The American beaver, Castor canadensis, nearly didn’t survive European colonialism in the United States. Prized for its dense, lustrous fur, and also sought after for the oil from its tail glands, the species was killed by the tens of thousands, year after year, until conservation efforts in the late 19th century turned the tide. In her new book, Beaverland: How One Weird Rodent Made America, author Leila Philipp tells that tale—and the ecological cost of this near-extermination. But she also has good news: beavers, and their skillful engineering of waterways, have the potential to ease the fire, drought and floods of a changing climate. She talks to Ira about the powerful footprint of the humble beaver. This book is the SciFri Book Club’s January 2023 pick. Find out more about our book club on this month’s main page.   In A New Hampshire Town, It’s Snowmobilers Vs. Beavers On a Saturday afternoon walk, Kelly Schofield and her husband turned a corner onto a road near their house in Bow. They sensed something was wrong with the beaver pond before they saw it. “You could smell it. It was pretty strong. And then when we got down to the pond where you could really see the pond, you could see it was gone,” she said.The pond was drained. Left behind was a huge tract of mud, and creatures trying to survive. Neighbors took videos of fish floundering as the water receded. Beavers are beloved by some and considered a nuisance by many. But Schofield and others who lived on the pond agreed: nature’s engineers made their property more valuable, and made their lives better. They took their kids down to the water to learn about frogs and turtles; watched ducks stop by as they migrated south. Read the rest at sciencefriday.com.   How Science Can Keep Your Christmas Tree Merry And Bright Nothing beats the smell of a live Christmas tree in your home, but how can you keep the needles on your tree and off your carpet? Rick Bates, professor of horticulture at Penn State University, offers tips for how to properly care for your Christmas tree this holiday season.  

Scientists Reach Breakthrough In Nuclear Fusion This week, researchers announced a big breakthrough in the field of nuclear fusion. Scientists have been slamming atoms into each other for decades in the hope that they will fuse together, and release more energy than was put in. And for the first time ever, scientists at the Lawrence Livermore National Laboratory did just that in early December, using very powerful lasers. But just how quickly will the mission to develop scalable nuclear fusion become a reality? Ira talks with Casey Crownhart, climate reporter at MIT Technology Review, about that and other top science news of the week, including an uptick in methane, an investigation into telehealth data sharing practices, and the newly-identified snake clitoris.   A Promising New Treatment Emerges For Multiple Myeloma Multiple myeloma is an incurable blood cancer that affects cells inside a patient’s bone marrow. Nearly all multiple myeloma patients will relapse at some point in their treatment, becoming resistant to first one, then another frontline intervention. But a new kind of therapy, a bispecific antibody called Talquetamab, has been showing promise in clinical trials—both in treating the cancer, and keeping patients in remission longer. A bispecific antibody works as a kind of bond between a T-cell that might otherwise not be doing its job and the myeloma cell itself, forcing the T-cell to attack the cancer. Ira talks to Dr. Ajai Chari, who is leading the clinical trials of Talquetamab, about the historic difficulty of treating multiple myeloma, and why this new therapeutic approach may lead to more patients living longer lives.   Growing Christmas Trees In A Warming World For those who celebrate Christmas, the decision over a Christmas tree can be hotly debated. For those who hold out for a real tree, there are dozens of species available for American consumers—catering to Douglas fir aficionados, Fraser fir fans, and Noble admirers. But climate change could soon affect the selection at a tree lot near you. Chal Landgren, a Christmas tree specialist at Oregon State University, manages a program that for decades has bred and developed seedlings raised to become Christmas trees. Oregon is responsible for growing 25% of all Christmas trees in the country, but heatwaves and drought have made this future tenuous. “My kind of anecdotal information is that between this summer and the heat dome, we probably lost 50% of the seedlings that were planted,” Landgren told Science Friday. Read more at sciencefriday.com.   Ready, Set, Play: 2022’s Best Science Fiction Games There were many exciting science fiction and science gaming titles released this year. Whether you enjoy video games, board games, learning about mendelian genetics, getting immersed in hard tactical sci-fi, or just want to be a cat wandering around a gorgeous cyberpunk city, we have you covered. Joining us to discuss our favorite sci-fi and science-y games this year (and the slightly recent past) are Maddy Myers, Deputy Editor of Games at Polygon and co-host of the gaming podcast Triple Click, and Mandi Hutchinson and Suzanne Sheldon of Salt And Sass Games.   See the full list at sciencefriday.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Medicine Is Failing Disabled Patients. Meet The Doctors Pushing For Change “More than sixty-one million Americans have disabilities, and increasing evidence documents that they experience health care disparities.” That’s the conclusion of a series of studies, in which researchers pulled back the curtain on how doctors perceive disabled patients. A study from last year found that more than half of surveyed physicians do not feel fully confident that they can provide disabled and non-disabled patients the same level of care. And in another paper, some doctors went as far to say that if you have a disability then “I am not the doctor for you.” So how do we change that? Ira talks with two researchers, who are disabled themselves, about how the medical field needs to better serve the disabled community. He hears from Dr. Lisa Iezzoni, an author on those studies and a professor of medicine at Harvard Medical School, who is based at the Health Policy Research Center at Massachusetts General Hospital in Boston. Also joining Science Friday is Dr. Feranmi Okanlami, a physician and assistant professor at the University of Michigan Medical School, based in Ann Arbor, Michigan. To Stop Whale Strikes, Ships Were Asked to Slow Down. It Worked. The Santa Barbara Channel is like an underwater national park with marine mammals, seabirds, fish and even shipwrecks. Ocean currents from the north and south meet and mix here to create an ideal feeding grounds for marine life. “Just the other day I was flying over the channel and we counted over 40 humpback whales in a rather small region feeding on fish,” said Sean Hastings, the Policy Management and Information Officer for the Channel Islands Marine Sanctuary—part of the National Oceanic and Atmospheric Administration or NOAA. We met at the Santa Barbara Maritime Museum, close to his office, and sat in the museum’s library which is filled with books that are different shades of blues and greens—the colors you’d expect books about the ocean to be. Hastings continues his story about a recent flight over the channel spotting all those whales. To read the rest, visit sciencefriday.com.   How The Transistor Transformed The World 75 years ago this month, research scientists working at Bell Labs first created, then unveiled to the world a new device—the point contact transistor. Some call it the greatest invention of the 20th century. That first transistor was a clunky looking thing, with two gold contacts on a plastic wedge pressed against a crystal of germanium. But that early device had a magical property: A voltage in one part of the device could control the flow of electrons in another part of the transistor. It could be a switch, or an amplifier. That device and the ones that followed and improved on it would become an essential part of modern life. From the first transistor radios to modern computers, hearing aids, and more, transistors are everywhere, in great numbers. An ordinary cell phone today likely has billions of transistors in it. In fact, the transistor has become so ubiquitous that one estimate puts the number of transistors on the planet as about three million per square foot. The three researchers credited with the invention of the transistor, William Shockley, John Bardeen, and Walter Brattain, went on to share the Nobel Prize in Physics—but they saw limited financial gain from their creation, and had a rocky personal relationship. Michael Riordan, a physicist, science historian, and coauthor of “Crystal Fire: The Invention of the Transistor and the Birth of the Information Age,” joins Ira to look back on the invention, the scientists who got credit for the device, and where transistor technology has gone since 1947. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Science Behind The Psychedelics Boom There’s been an explosion of new research into therapeutic uses for psychedelics. This includes drugs like psilocybin, the hallucinogenic chemical found in “magic mushrooms,” and ketamine—which was originally used as an anesthetic, and later became a popular party drug also known as “special K.” Esketamine, a form of ketamine, was approved by the FDA in 2019 for use in treatment resistant depression. And just last month Colorado residents voted to legalize medicinal use of psilocybin. Following on the heels of Oregon’s legalization in 2020, which is now in the process of being implemented. A recent study published in the New England Journal of Medicine showed promising results in using psilocybin to help patients with treatment-resistant depression. About a third of those who received the highest dose were in remission 3 weeks later. This was the largest look at psilocybin’s effect on depression to date, involving 233 participants across ten countries in Europe. Ira talks with Dr. Steve Levine, senior vice president of patient access and medical affairs at COMPASS Pathways, the company that funded the study. Later, Ira takes a closer look into the latest psychedelic research and takes listener calls with Dr. Gerard Sanacora, professor of psychiatry and director of the Yale Depression Research Program at the Yale School of Medicine, and Dr. Alissa Bazinet, Clinical Psychologist, Co-Founder and Director of Research and Development at the Sequoia Center, and Associate Director of the Social Neuroscience and Psychotherapy Lab at Oregon Health and Science University.     How Will AI Image Generators Affect Artists? Back in August, controversy erupted around the winning submission of the Colorado State Fair’s art content. The winning painting wasn’t made by a human, but by an artificial intelligence app called Midjourney, which takes text prompts and turns them into striking imagery, with the help of a neural network and an enormous database of images. AI-based text-to-image generators have been around for years, but their outputs were rudimentary and rough. The State Fair work showed this technology had taken a giant leap forward in its sophistication. Realistic, near-instant image generation was suddenly here—and reactions were just as potent as their creations. Tech enthusiasts lauded the achievement, while artists were largely concerned and critical. If anyone could make a painting in just a few seconds, why would someone need to commission an artist to produce an illustration, or even bother spending years learning art at all? Read the rest on sciencefriday.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Wish A Happy 190th Birthday To Jonathan The Tortoise A birthday should always be celebrated. For Jonathan the tortoise, who turned 190 this week, that celebration involved a salad cake and a three-day party. Jonathan is the oldest known living animal, hatched in 1832. Jonathan, who calls the island of St. Helena home, may be blind and unable to smell, but he maintains a good quality of life and even continues to mate with his companions. Jonathan’s ripe old age surpasses the typical tortoise life expectancy of 150 years. In other “old” news, scientists have found fragments of DNA one million years older than the previous record: making these samples two million years old. The fragments were found in Ice Age sediment in Northern Greenland, and are from a time where the climate was much warmer than it is now. Vox staff writer Umair Irfan joins Ira to talk about these and other science stories of the week, including an end to the monoclonal antibodies we have for COVID and the FDA’s first approval of fecal transplant therapy.   The Joy And Sadness Of Bird Counting The state of the birds is not looking good. That’s the conclusion from a new report that looks at decades of community-collected population data from surveys like the annual Christmas Bird Count and the Breeding Bird Survey. Species that inhabit grasslands seem to fare the worst, with their populations down over 30 percent in the last 50 years. Meanwhile, dozens of newly identified “tipping point” species have lost 50 percent of their populations in the same time, and are poised to lose the same proportion in the coming half century. Dr. Amanda Rodewald of Cornell University’s Lab of Ornithology helps unpack the report’s key findings, including the good news: Decades of cooperative efforts to protect waterfowl have paid off in thriving duck populations. Rodewald explains what this can tell us about reversing declines in other habitats. Plus, birder and science writer Ryan Mandelbaum joins Ira and listeners to talk about the joys of winter birding, the upcoming Christmas Bird Count, and the feathery sightings that brighten our lives.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Hawai’i’s Mauna Loa Volcanic Eruption Sparing Homes For Now Hawai’i’s famed Mauna Loa volcano began to erupt this past weekend, after weeks of increasing small earthquakes. So far the flow of lava is posing no risk to homes in nearby Hilo, though that could change rapidly. But in the meantime, an important climate research lab is without power and unable to make measurements. And as lava flows and cools into new rock formations, one unusual product, called Pele’s Hair, looks uniquely soft and straw-like—while being dangerously sharp. Ira talks to FiveThirtyEight’s Maggie Koerth about the less high profile side effects of a major volcanic eruption. Plus, a new analysis of the magma under Yellowstone National Park, the leadership potential for wolves infected with a cat parasite, and other research stories.   A Nobel Prize For Chemistry Work ‘Totally Separate From Biology’ This year, the Nobel Prize in Chemistry went to Carolyn Bertozzi of Stanford University, Morten Meldal of the University of Copenhagen, and K. Barry Sharpless of the Scripps Research Institute “for the development of click chemistry and bioorthogonal chemistry.” In “click chemistry,” molecular building blocks snap together quickly and efficiently to let chemists build more complicated molecules. But bioorthogonal chemistry takes that work one step farther, allowing the technique to be used within living organisms without damaging cells. “When someone is thinking outside the box, or in a very different way, we like to think of that as orthogonal thinking,” Dr. Bertozzi explained. “So biorthogonal means not interacting with biology. Totally separate from biology.” Her research began with an interest in developing ways to see specific sugar molecules on the surface of cells. But it has developed into an approach that can be used for advanced drug delivery in fields such as chemotherapy. Bertozzi joins Ira Flatow for a wide-ranging conversation about her research, chemistry education, her early music career, and the importance of diversity in the field of chemistry.   Scientists Discover What Makes Jazz Music Swing Swing is a propulsive, groovy feeling that makes you want to move with the music. It’s hard to put into words, but if you listen to jazz, you’ve probably felt it yourself. Now, researchers have arrived at a better understanding of what generates that feeling: Their work, published in Communications Physics, focuses on timing differences between a group’s soloist and its rhythm section. Joining Ira to discuss the new findings are Theo Geisel, a professor of theoretical physics at the University of Göttingen and the Max Planck Institute for Dynamics and Self Organization, and Javier Arau, a saxophonist and the founder and executive director of the New York Jazz Academy.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Consider Empathy For The Yeti Crab (And Other Sea Creatures, Too) It’s easy to empathize with certain animals: soft fur, big eyes, and family units make it simple to relate to creatures like panda bears, cats, and dogs. Even some undersea critters like dolphins and whales have large fan bases among land-dwelling humans. But the ocean is filled with many more creatures than just mammals, and many of them fall in the category of “weird.” Defector staff writer Sabrina Imbler thinks a lot about these critters that evade our categorization of “cute.” Things like deep sea worms, jelly-like invertebrates called salps, and the ghostly, hairy yeti crab are Imbler’s bread and butter. Imbler’s new book, How Far the Light Reaches: A Life in Ten Sea Creatures, is filled with essays comparing aspects of their life to bizarre creatures of the deep sea. From exploring their queer identity through the underwater dance parties of the yeti crab, to grappling with living as a mixed-race person through hybridized fish, each essay is poetic and intimate. SciFri producer Kathleen Davis chats with Imbler from their home in Brooklyn, New York, about the importance of finding empathy with the strangest creatures on our planet. Read an excerpt from How Far the Light Reaches: A Life in Ten Sea Creatures here.   Advances In Pig-To-Human Organ Transplantation Hold Promise Earlier this year a pig heart was successfully transplanted into a human for the very first time. Unfortunately, the patient lived for just under 2 months. But it still marks a big milestone in the field of xenotransplantation, or transplanting organs from one species to another. Scientists are optimistic that advances in pig-to-human organ transplantation could save the lives of some of the over 100,000 people in the waiting for organ donations in the United States. Ira talks with Dr. Muhammad Mohiuddin, professor of surgery and director of the Cardiac Xenotransplantation Program at the University of Maryland School of Medicine, about what he’s learned in the 10 months since the historic heart transplant, and about the barriers to widespread acceptance of interspecies organ transplantation. Later, Ira talks with Dr. Megan Sykes, professor and director of the Center for Translational Immunology at Columbia University about how scientists decided that pigs were suitable organ donors in the first place, and the latest advancements in pig-to-human organ transplantation research.   Teaching Your Smart Devices To Get Along If you’ve ever tried to connect a new Internet of Things device in your home, such as a smart plug or light, you know it can be a complicated process. Not every device works with every other device, and even the most tech-savvy customer may find themself turning to Reddit for help troubleshooting. These are problems a new Internet of Things standard called Matter aims to solve. Created by a coalition of home device companies, Matter allows devices that run it to speak to each other, set up seamlessly, and communicate securely. The standard officially launched in early November with dozens of new Matter-enabled devices. Ira talks to Jennifer Pattison Tuohy of The Verge about the problems Matter aims to solve, and some of the practical hitches along the road to a more seamless smart home.   Putting Tap Water To The Test Every time you turn on the tap, you become the last stop in a complicated journey. Water from snow and streams collects in lakes and reservoirs, and cities pump it through complex filtration systems to make it pure enough to drink. The particular balance of invisible minerals in each pour from your kitchen tap makes for subtle differences in every glass. One might call it the terroir of tap water. In a bustling hotel ballroom, surrounded by exhibition booths showing off the latest pipes, pumps and filters, a panel of judges gathered to spot those differences. I was one of them. The American Water Works Association assembled a panel of water wonks for its Rocky Mountain regional meeting in the ski resort town of Keystone. Here, we put tap water to the test, blind tasting samples from six cities across Colorado to crown a winner.   To read the rest of the article, visit sciencefriday.com.    Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

From Tiny Krill To Concrete Jungles: 2022’s Best Science Books For Kids The holidays are right around the corner, which means for those who give gifts in December, now is the time to start putting together that shopping list. If you have a young person in your life who loves science, why not expand their library and get a book or two? Joining Ira to give their recommendation for the best children’s science books of the year—both fiction and nonfiction—are Melissa Stewart, science book author based in Boston, Massachusetts, and Kristina Holzweiss, education technology specialist based on Long Island, New York. See the books at sciencefriday.com. Indigenous Knowledge Is Central To Climate Solutions As the United States observes Earth Day this year, many will be thinking about their personal relationship with—and responsibility to—the planet. But in an era of multiple planetary crises, including extinctions, global warming, and contaminated water, what about the Indigenous peoples whose millennia-old relationship with their land has been disrupted and sometimes severed by colonialism and other displacements?  Indigenous environmental scientist and author Jessica Hernandez talks to Ira about the harms the Western science has perpetuated against colonized people, as white environmentalists created national parks on Indigenous lands and “helicopter scientists” continue to do research in the global south while using the wealth of Western institutions. And she explains why greater recognition of Indigenous science, and partnerships that center Indigenous peoples and their research questions, is good for the entire planet.   Prizes For Science That Makes You Laugh, Then Think Prizes went to researchers for analyzing what makes legal documents unnecessarily difficult to understand. And for creating a moose crash-test dummy. And for explaining, mathematically, why success most often goes not to the most talented people, but instead to the luckiest. If that sounds like a strange set of awards—that’s because it’s the Ignobel Prize Ceremony. This year, for the 32nd year in a row, laureates gathered (virtually) to be recognized for their unusual contributions to the world of science and engineering. In the words of Marc Abrahams, editor of the Annals of Improbable Research and awards ceremony ringleader, “It’s not about good or bad. If you win an Ignobel Prize, it means you’ve done something that will immediately cause anyone who hears about it to laugh, and then to think about it for the next few days or weeks.” Abrahams joins Ira to talk about the backstory of the awards, and to introduce some highlights from this year’s online prize ceremony.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Building The World’s Largest Animal Crossing Outside of LA There’s a spot on Highway 101 in Agoura Hills, it’s pretty inconspicuous. There’s brown and green rolling hills on either side of the highway. Homes are sprinkled here and there. And then a small metal gate that leads off on a hiking trail. You probably wouldn’t know it, but soon this spot will be the location of the world’s largest animal crossing. This crossing will reconnect habitats that have been cut off from each other for three quarters of a century and it’ll do it over a highway that is constantly buzzing with cars — 300,000 pass by this spot every single day. In this piece we’re going on a geography voyage — from the north side of the highway to the south, and up the hills, above the highway, to get the real view. We’ll start here — there’s a big open space on the northern side of the highway. It’s at the entrance to Liberty Canyon and where I meet Beth Pratt. To continue reading, go to sciencefriday.com.   Over 5,000 Exoplanets Have Now Been Discovered In March, the NASA Exoplanet Archive logged the 5,000th confirmed planet outside of our solar system. This marks a huge advance since the first exoplanet discovery in 1992, when astronomers Aleksander Wolszczan and Dale Frail announced the discovery of two planets orbiting the pulsar PSR 1257+12. Now, the Archive contains confirmed sightings of planets in a wide range of shapes and sizes—from “hot Jupiters” to “super Earths”—but they still haven’t found any solar systems just like our own. In many cases, all astronomers know about these distant planets is their size and how far away from their stars they orbit. The TESS (Transiting Exoplanet Survey Satellite) mission currently in orbit may eventually add ten thousand more candidates to the lists of possible planets. The Nancy Grace Roman Space telescope and ESA’s ARIEL mission, both planned for launch later this decade, could add thousands more. And the James Webb Space Telescope, currently undergoing commissioning, will attempt to characterize the atmospheres of some of the planets astronomers have already discovered. Astronomer Jessie Christiansen, the NASA Exoplanet Archive Project science lead, joins John Dankosky to talk about what we know about planets around distant suns, and how researchers are working to learn more about these far-off worlds.   Scientists Release The First Fully Complete Human Genome Two decades ago, scientists announced they had sequenced the human genome. What you might not know is that there were gaps in that original sequence—about 8% was completely blank. Now, after a years-long global collaboration, scientists have finally released the first fully complete assembly of the human genome. Researchers believe these missing pieces might be the key to understanding how DNA varies between people. Six scientific papers on the topic were published in a special edition of the academic journal Science. Ira talks with Karen Miga and Adam Phillippy, co-founders of the Telomere to Telomere Consortium, an international effort that led to the assembly of this new fully complete human genome.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Science Behind Your Favorite Thanksgiving Dishes Thanksgiving is right around the corner, and for many people, that means it’s time to start thinking about what will be on the menu for dinner that night. Many people will opt for a classic turkey: others, a vegetarian-focused meal. Regardless of the plan, preparing food for the holiday can take some planning, and there’s a lot of science that goes into it. Cookbook author Kenji López-Alt thinks about the science behind cooking a lot. He’s the author of The Food Lab: Better Home Cooking Through Science, and he lists Thanksgiving as his favorite holiday. That makes him the expert on all things brine, sides, and pie. López-Alt joins Ira from his home in Seattle, Washington, to answer questions about the science behind Thanksgiving foods.   NASA’s Massive Rocket Finally Launches To The Moon Early Wednesday morning the Artemis 1 mission launched, the first integrated flight test of NASA’s Space Launch System—a massive rocket that NASA hopes will enable an eventual lunar landing. The uncrewed launch was a long time coming. Elements of the program have been under development for over a decade. If all goes according to plan, a second Artemis flight—this time, with crew—will take place in 2024, with a crewed lunar landing in 2025. Another component of the program, a tiny spacecraft called Capstone, entered into lunar orbit several days prior to Artemis. It will test a complicated orbit planned for a potential lunar space station called Gateway, which would serve as a way station for astronauts moving between Earth and the Moon. Ira talks with Jim Free, NASA’s Associate Administrator for Exploration Systems Development, and Brendan Byrne, space reporter for WMFE and host of the Are We There Yet podcast, about the test flight and what lies ahead for the Artemis program. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

There Are Now Eight Billion People On Earth. What’s Next? Humankind just hit a big milestone this week: a world population of eight billion people. A hundred years ago, there were less than two billion, and now we’ve more than quadrupled that. But after decades of quick population growth, what will the next few decades hold? Sophie Bushwick, technology editor at Scientific American, explains this to Ira live from the studio. They also talk about other science news this week, like a new initiative from COP 27 to help transition poor countries away from fossil fuels, an ambitious plan to put solar panels in space, how mental health apps aren’t protecting user data, what the discovery of the earliest cooked meal in history tells us about human evolution, and the very first lab-grown meat to gain FDA approval.   Groundwater Contamination In Springfield, Missouri Kept Secret From Residents Early in 2019, Ed Galbraith faced a crowd of some 200 unhappy Springfield, Missouri residents. He wanted to make amends. Galbraith, then director of Missouri Department of Natural Resources’ environmental quality division, acknowledged that the state agency in charge of protecting the environment should have announced sooner that contaminated water had spread from an old industrial site near the Springfield-Branson National Airport. Residents had recently found out that a harmful chemical known to cause cancer had been detected in the groundwater. The contamination came from the site of the now-shuttered Litton Systems, a former defense contractor that had employed thousands of people in Springfield to make circuit boards for the Navy and telecommunications industry. Read the rest at sciencefriday.com.   Can A New Surge Of Tech Interest Make The Metaverse A Thing? Late last year, Mark Zuckerberg took the company then known as Facebook in a new direction. He renamed it Meta, short for “metaverse.” And he promised the company would go all in on building a virtual reality world like the first famous metaverse—the fictional topic of Neal Stephenson’s 1992 novel “Snow Crash.” While many companies have tried to make metaverses in the 30 years since “Snow Crash” came out, including the popular virtual world called Second Life, we seem to be entering a new era of metaverse hype: besides Zuckerberg, Apple seems to be investing in a VR world. And even Nike wants to make a metaverse. So what are users actually getting if these companies succeed at their goals? And are there other, perhaps better, ways to go about bringing people together virtually? Ira talks to science fiction writer and tech journalist Annalee Newitz, and Avi Bar-Zeev, a pioneer of extended-reality technologies for companies like Disney, Apple, and others.

Science Was Big On The Ballot This Week. Here’s What Went Down Another chaotic election week has come and gone. Across the U.S., science was on the ballot, and people cast their votes on issues like healthcare, climate change infrastructure, conservation, and abortion policy. Nsikan Akpan, health and science editor at WNYC in New York City, joins Ira to talk about how the science ballot initiatives panned out this week. They discuss the outcomes of the abortion initiatives, California’s move to ban flavored tobacco, and what this election could mean for the future of the U.S.’ climate goals. Plus, they discuss the mess that is COP 27 climate conference, why this hurricane season is so strange, how an in utero procedure successfully treated a rare genetic disorder, and new footage of octopuses hurling objects at each other.   As Anthony Fauci Steps Down, A Look Back At His Storied Career In recent years, Dr. Anthony Fauci, head of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health, has become a prominent public figure and one of the public faces of the U.S. government’s response to the COVID-19 pandemic. However, Science Friday has been talking to Dr. Fauci for decades, beginning in 1994, about topics ranging from HIV/AIDS to Ebola, interviewing him about everything from the Zika virus to advances in allergy research. Fauci has been in his current role at NIAID for 38 years, and has served as an advisor to seven presidents. He is the recipient of the Presidential Medal of Freedom. He spoke with Ira about his career in medical research, the things he’s most proud of achieving in his time with the NIH, and the challenges the nation still faces in dealing with the pandemic, and other disease outbreaks yet to come.   New Documentary Is Endearing Tribute To NASA’s Rover Program In 2003, the world became captivated by two rovers launched by NASA on a mission to Mars, known as Spirit and Opportunity. The rovers were sent to the Red Planet to discover what was on the surface. The rovers were only expected to last 90 days. Instead, Opportunity led a 15-year life of discovery, including the bombshell that Mars may once have been suitable to sustain microbial life. The story of these twin rovers is the subject of a new documentary out this month: “Good Night Oppy,” evoking the nickname of the Opportunity rover. The film features footage taken over nearly two decades, from the building of the rovers to recent interviews with scientists involved in the mission. Ira speaks with “Good Night Oppy” director Ryan White, as well as featured scientist Doug Ellison, engineering camera payload uplink lead at NASA, based in Alhambra, California.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

How Past Extinctions At The La Brea Tar Pit Can Teach Us About Our Climate Future If you drive through Los Angeles, you’ll pass by some of California’s most iconic sites—the Hollywood Walk of Fame, Universal Studios, the Santa Monica Pier. But if you don’t look for it, you may miss the La Brea tar pits—a place where Ice Age life from around 50 thousand years ago got trapped and preserved in sticky black ooze. Visitors can see megafauna, including skeletons of saber tooth cats and dire wolves, along with a vast collection of specimens, including things as small as beetle wings and rodent dung. La Brea was recently named as one of the world’s most important geological heritage sites by the International Union of Geological Sciences. The museum is currently planning an extensive redesign that will seek to connect visitors to research, offering lessons about climate, extinction, and survival. Dr. Lori Bettison-Varga, president and director of the Los Angeles Museum of Natural History, joins Ira to explain the significance of the site, and how a trove of Ice Age specimens can serve as a modern-day climate laboratory.   Across The Country, RSV Is Overwhelming Medical Systems If you have a child—or interact with children on a regular basis—odds are you’ve heard about a very contagious virus: RSV, or respiratory syncytial virus. This isn’t a new illness, but it has been surging across the country. This has left parents and caretakers stressed about how to keep their kids safe. Hospitals across the country are having trouble coping with this year’s surge, which has come earlier and stronger than normal. This week, Science Friday is spotlighting two regions affected by the wave: Wisconsin and Washington, D.C. The two regions have their own challenges when it comes to the RSV surge. In Wisconsin, care deserts and a large elderly population make containing this virus important to avoid dangerous consequences. In Washington, D.C., hospitals are feeling the effects of years of shutting down pediatric units to make room for adult beds. Joining Ira to talk about RSV in Wisconsin and Washington D.C. are two journalists who have been following this: Jenny Peek, news editor for Wisconsin Public Radio and Aja Drain, reporter at WAMU public radio.   What You Should Know About This RSV Surge Respiratory syncytial virus, known as RSV, is the number one cause of infant hospitalizations in the United States, and cases are soaring this year. Because young children have spent part—if not most—of their childhoods isolated, masking, or staying home due to the pandemic, many of their immune systems haven’t been exposed to RSV until now. It’s caused a huge surge in cases, and placed a heavy burden on pediatric clinics and hospitals. What do you need to know about the spike in infections? Ira talks with Dr. Carol Kao, a pediatrician and assistant professor at Washington University in St. Louis, Missouri, who has treated RSV for years. They dig into why this surge is happening now, the basics of the virus, how RSV is treated, and where we stand with an RSV vaccine.   Mapping Brain Connections Reinforces Theories On Human Cognition Brain regions are associated with different functions—the hippocampus is responsible for long-term memory, for example, and the frontal lobe for personality, behavior, and emotions. After decades of research using sophisticated brain imaging, there’s a growing consensus among neuroscientists that understanding the connections between brain regions may be even more important than the functions of the regions themselves. When it comes to understanding human cognition, the whole is greater than the sum of its parts. Ira speaks with Dr. Stephanie Forkel, assistant professor at the Donders Centre for Cognitive Neuroimaging at Radboud University in Nijmegen in the Netherlands, who wrote a review article in the journal Science about the importance of brain connectivity, and what it means for the future of neuroscience. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Why Contraceptive Failure Rates Matter In A Post-Roe America Birth control options have improved over the decades. Oral contraceptives are now safer, with fewer side effects. Intrauterine devices can prevent pregnancy 99.6% of the time. But no prescription drug or medical device works flawlessly, and people’s use of contraception is inexact. “No one walks into my office and says, ‘I plan on missing a pill,’” said obstetrician-gynecologist Dr. Mitchell Creinin. “There is no such thing as perfect use, we are all real-life users,” said Creinin, a professor at the University of California-Davis who wrote a widely used textbook that details contraceptive failure rates. Even when the odds of contraception failure are small, the number of incidents can add up quickly. More than 47 million women of reproductive age in the United States use contraception and, depending on the birth control method, hundreds of thousands of unplanned pregnancies can occur each year. With most abortions outlawed in at least 13 states and legal battles underway in others, contraceptive failures now carry bigger stakes for tens of millions of Americans. Read the rest at sciencefriday.com. The Quest For New COVID-19 Solutions As we head towards our third pandemic winter, the nation still is facing about 2,500 weekly deaths from COVID, and over 3,000 people a day entering the hospital due to the virus. Dr. William Haseltine is chair and president of ACCESS Health International, a former professor at Harvard Medical School and Harvard School of Public Health, and the founder of several biotechnology companies, including Human Genome Sciences. “This thing knows everything about our immune systems,” Haseltine says. “We have to find new drugs that it has never seen before, and new combinations of those. That’s what’s worked for HIV. That’s what we have to do now—and we’re doing a very poor job of that.” Haseltine joins Ira to help explore the viral landscape, and where he sees viral research headed—from new vaccines to antiviral drugs and antibody cocktails.   Can Animals Evolve To Survive The Anthropocene? When you think of evolution, you might imagine a slow process that takes millions of years. Take Tiktaalik, for example: The ancient fish, an important human ancestor, took 375 million years from climbing out of water to get to the humans you see now.Now that we’re here, we’re changing the world at an unprecedented rate. Threats like climate change, deforestation, and pollution are wiping out entire animal species in just one generation. Can evolution punch back? Or are some species fighting a losing battle? Dr. Shane Campbell-Staton joins Ira to discuss rapid evolution in the anthropocene, and whether that’s enough to keep these species afloat.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Using Family Photos Of Fall Foliage To Track Climate Change Leaf-peeping, or tourism based on observing the colors of fall foliage, is a big industry in parts of the Northeast. So as leaves continue to change across the northern United States with the turning of the seasons, researchers are working to better understand how climate change may be affecting fall colors—changes that may affect the bottom line for those tourism-rich areas. But to tease out the factors involved with the timing of peak leaf color, the researchers need data on when leaves started to change color, when they arrive at their peak color, and when the leaf-peeping season ends. Unfortunately, satellite imagery showing leaf color is only available dating back to the year 2000—and so Stephanie Spera of the University of Richmond is trying to get data in some unconventional ways. Spera and colleagues are engaging in a massive citizen-science project, asking for tourist snapshots of Acadia National Park that show the colors of fall. While they’ll accept your cellphone selfies, they’re especially interested in older, pre-digital images—the sort of vacation pictures that might be in your family albums, or in shoe boxes in an elderly relative’s attic. Adding those images to their data set, she says, will both help them to validate the satellite data and to extend the boundaries of their data set outwards. Heather Goldstone, host and executive producer of Living Lab Radio on WCAI, joins Ira to talk about the project and how listeners can participate.   The ‘Grandfather’ Of The Voyager Mission Retires 45 years ago, the Voyagers 1 and 2 spacecraft were launched into the cosmos from Cape Canaveral in Florida. Since then, they’ve traveled over 14 billion miles from Earth, on a grand tour of our solar system, and beyond. The mission is still running, making Voyager 1 the farthest human-built artifact from Earth. Even before launch, scientists and engineers were hard at work planning and designing the mission. Last week, NASA announced the retirement of Dr. Ed Stone, who some called the ‘grandfather’ of the mission. Dr. Stone shepherded the Voyager program as its project scientist for 50 full years. In this conversation from 2013, just after Voyager 1 had entered interstellar space, Ira spoke with Dr. Stone for a status update on the mission.   A Flaw in Human Judgment: How Making Decisions Isn’t As Objective As You Think If two people are presented with the same set of facts, they will often draw different conclusions. For example, judges often dole out different sentences for the same case, which can lead to an unjust system. This unwanted variability in judgments in which we expect uniformity is what psychologist Daniel Kahneman calls “noise.” The importance of thoughtful decision-making has come in stark relief during the pandemic and in the events leading up to the January 6th insurrection. Ira talks with Nobel Prize-winning psychologist Daniel Kahneman about the role of ‘noise’ in human judgment, his long career studying cognitive biases, and how systematic decision-making can result in fewer errors. Kahneman is the co-author of “Noise: A Flaw in Human Judgment,” along with Oliver Sibony and Cass R. Sunstein, now available in paperback.   Frenemies, Lovers, And The Fate Of The Cosmos: Our Galaxy Tells All Our galaxy, the Milky Way, is 13.6 billion years old, all-knowing, and a little sassy. It has a rich social life of friends, frenemies, and even love interests—all other galaxies in the local group, including the stunning Andromeda. And the Milky Way is a little disappointed that we’ve stopped telling as many stories about it. Or at least, that’s how folklorist and astronomer Dr. Moiya McTier imagines the galaxy’s personality when writing her new book, The Milky Way: An Autobiography of Our Galaxy. The book stretches from the beginning of the universe to the birth of our planet, and then on to the eventual theoretical end of the cosmos. Along the way, we learn both the science of how stars form and galaxies collide, and the many stories and myths humans have told about these bodies throughout our relatively brief lives. McTier joins Ira to tell all (on behalf of the Milky Way), and explain the importance of story in scientific knowledge and discovery.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Why Do Cats Purr? An Investigation Into A Purr-fect Mystery Science Friday recently received a voicemail from a listener named Violet from Maui, Hawai’i, who wanted to know: Why do cats purr? We wanted to see what other cat lovers knew about cat purring. So we sent our talented SciFri colleagues Diana Montano and Kyle Marian Viterbo to the Meow Parlor, a cat cafe in New York City to find out. Guest host Katherine Wu, who recently wrote about why cats purr for The Atlantic, also talks with Robert Eklund, professor of language, culture, and phonetics at Linköping University in Linköping, Sweden. He explains what we do and don’t know about how and why cats purr.   How To Digitally Recreate Darth Vader’s Voice From A War Zone James Earl Jones played Darth Vader for 45 years. But this September, he officially stepped down from the role. Fear not, Star Wars fans—the villain isn’t gone for good. Instead, the filmmakers have teamed up with the Ukrainian AI company Respeecher to recreate his voice. Respeecher can convert one person’s speech into the voice of another. The company’s work has appeared in the Star Wars canon already, as Young Luke Skywalker in “The Mandalorian” and “The Book of Boba Fett.” And just last month, they debuted their Darth Vader mimic in the T.V. show “Obi-Wan Kenobi.” They always knew that it would be challenging to recreate Vader’s iconic voice. But their job got a whole lot harder when Russian troops invaded their nation. Respeecher chief technology officer Dmytro Bielievtsov and sound engineer Bogdan Belyaev join guest host Kathleen Davis to talk about their work.   Toxic Death Cap Mushrooms Take Root In The Mountain West Toxic mushrooms are not unusual in the Mountain West. “This is probably a lepiota,” said Susan Stacy, looking at a mushroom on a recent afternoon in a Boise, Idaho, neighborhood not far from downtown. “See that little dark nub in the middle and little flecks around here?” Stacy turned to her mushroom identification book. “Edibility: to be avoided. Perhaps poisonous,” she said. While this little mushroom could be problematic for a curious dog or child, it doesn’t compare to one of the world’s deadliest mushrooms – which Stacy discovered in Boise last September. She remembers that it was a hot day, and she decided to take a detour from her normal route to check out a busier area where many lawns were “generously” watered. “And here I come upon this mushroom, and I knew it was an Amanita because I had seen them before. And an Amanita, to my mind, is a gorgeous, statuesque, elegant creation. They’re just stately,” she said. The genus Amanita includes, incidentally, the species on which the red and white mushroom emoji is likely based, which also happens to be poisonous. Read the rest of this story on sciencefriday.com   Will A Hotter World Make Jellyfish Haute Cuisine? The ocean is filled with delicious ingredients, but our favorite seafood items might not stick around on menus forever … thanks to climate change taking its toll on fisheries. As a result, scientists are thinking more and more about what the future of food is going to look like—what ingredients we should eat more, and what we should eat less. That could mean we’ll eat more items like kelp, oysters, and mussels, which are a great source of nutrients, since they can be sustainably harvested. But there’s another seafood that’s being encouraged as a food of the future. But it’s a little more unfamiliar—and maybe surprising—to most of the world. It’s jellyfish. Although it’s a fairly common ingredient in several countries, like China and Vietnam, it hasn’t quite broken into the international market yet. Guest host Katherine Wu talks with Agostino Petroni, a journalist based in Rome who reported on the topic for Hakai Magazine, and Dr. Antonella Leone, a researcher at the Italian National Research Council’s Institute of Sciences of Food Production, based in Lecce, Italy. They talk about the benefits of jellyfishing, what it’s going to take to catapult jellyfish into the international seafood market, and their favorite jellyfish recipes.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Don’t Trust What You See On TikTok This Election Season Midterm elections in the United States are just under two weeks away. And new research suggests a significant risk of misinformation for American social media users—particularly from the video-sharing platform TikTok. Cybersecurity researchers at NYU published their findings after submitting misleading advertisements to YouTube, Facebook, and TikTok. The ads contained either the wrong dates or voter requirements for upcoming elections, or perpetuated narratives about the validity of past elections. And while TikTok prohibits all political advertising, 90% of those test ads were approved. Meanwhile, YouTube performed the best in rejecting all of the ads, and Facebook accepted about 30% of English-language ads. New Scientist’s Tim Revell joins co-host Kathleen Davis to talk about the misinformation implications of social media advertisements. Plus, the dramatic electrical charge of swarming honeybees, the good news about declining monkeypox cases, and other stories.   When Studying Ecology Means Celebrating Its Gifts Dr. Robin Wall Kimmerer’s book Braiding Sweetgrass: Indigenous Wisdom, Scientific Knowledge and the Teachings of Plants was first published nearly a decade ago—but in 2020, the book made the New York Times best-seller lists, propelled mainly by word of mouth. The book explores the lessons and gifts that the natural world, especially plants, have to offer to people. Kimmerer writes that improving our relationship with nature requires the acknowledgment and celebration of a reciprocal relationship with the rest of the living world. “I think we can care better for one another, for the land, and in fact we can do better science when we consider all of these streams of evidence, and assumptions, about the living world,” says Kimmerer. Kimmerer is a member of the Citizen Potawatomi Nation, and the founder and director of the Center for Native Peoples and the Environment at the SUNY College of Environmental Science and Forestry. In this SciFri Book Club discussion, recorded before a live Zoom audience, she discusses the book, the role of ceremony in our lives, and the challenge of addressing ecological issues such as exotic species within a reciprocal framework.   Looking Ahead To Our Third Pandemic Winter As winter approaches in the northern hemisphere, the Centers for Disease Control and Prevention are monitoring the rise of new COVID-19 variants—all, so far, descendants of 2021’s highly transmissible Omicron variant, whose emergence kicked off a deadly winter wave. Will any new variants emerge with the same potential? Guest host Katherine Wu talks to viral evolution researcher Dr. Verity Hill about the forces that may encourage the emergence of another concerning variant, and why new variants are more likely to evade our immune system’s defenses. Meanwhile, pediatric departments around the country are seeing more children with influenza and RSV than usual, heralding an early and potentially more severe start to the winter respiratory virus season. Duke University’s Dr. Ibukun Kalu joins to share about how multiple viruses may add to the risks COVID poses, as well as the toll the pandemic has already taken on healthcare’s capacity.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

The Science Behind Why You Should Ask For Help Sometimes asking for help—even for the smallest of favors—can feel awkward, or like you’re inconveniencing someone else. But the odds are, you’re probably wrong. Studies show that people are much more willing to lend a helping hand than you would think, and both parties usually end up happier. Guest host Shahla Farzan talks with Dr. Xuan Zhao, a psychologist at Stanford University, about the psychology behind asking for help.   A Possible Achilles Heel For Troublesome PFAS Chemicals Long-lasting chemicals known as per- and polyfluoroalkyl substances, or PFAS, are used widely in everything from firefighting foam to microwavable popcorn bags. The chemicals are a popular component of polymer coatings that resist heat, grease, stains and water. PFAS compounds (a family that includes roughly 12,000 different substances are often called “forever chemicals” in popular science coverage, because they’re designed to be super stable and don’t break down in the environment. But what makes them last “forever” from a chemistry perspective? And what can we do about it? Current PFAS disposal methods are expensive and labor-intensive, blasting the chemicals with temperatures over 1,000 degrees C in a high-pressure environment. But a research study published in Science has found a possible Achilles’ heel: a weak spot in the chemical bonds. The research points to a new possible method for disposing of PFAS chemicals, which uses special reagents to knock off a group of oxygen atoms at the tail end of PFAS, triggering a cascade of reactions that breaks the PFAS chemicals down into harmless components. The paper’s lead author, Brittany Trang, joins guest host Shahla Farzan to discuss this development in PFAS research.   Engineered Bacteria Might Help The Dream Of Mixed Plastic Recycling We’ve all been there—standing by the recycling bin, holding some sort of plastic object, and trying to figure out if it can go in the bin. There are many different types of plastic out there, from the film that wraps the meat at the grocery store, to the plastic in your milk jug. But they all differ in their ability to be recycled, and in the specific procedures and recipes that it takes to process them. Writing in the journal Science, a team of researchers describes a demonstration process that can break down a mixed bag of plastics, even dirty ones, and produce a single chemical output that could be used in industry. The process starts with a catalytic oxidation process involving metal salts, an acetic acid solvent, heat, and oxygen. That process is essentially a “controlled combustion,” says Dr. Gregg Beckham of the National Renewable Energy Laboratory. The oxidation process breaks the plastics in the reaction into a blend of liquid chemicals. Then, that blend of products is fed to a strain of engineered bacteria that have been designed to be able to eat each of those chemical breakdown products, and use them to make a specified product. Beckham says that in the initial experiment, they created two different products—one a biodegradable plastic, and one a precursor to a type of recyclable nylon—but the method could conceivably be adapted to any product that bacteria can be enabled to grow via synthetic biology. Beckham joins SciFri’s John Dankosky to talk about the demonstration, and the challenges of moving this technology out of the laboratory and into an operating recycling process.   How Understanding Depression Goes Beyond The Scientific Method Science has yet to pinpoint exactly why some people experience depression and others do not. And it may never be able to give a fully satisfying answer. While people with depression may have similar symptoms, each person’s story is just a little different. And there’s no “one size fits all” treatment. Guest host John Dankosky talks with John Moe, who has spent a lot of time thinking about the nuances of depression through a humorous lens. Moe is the host and creator of the podcast Depresh Mode and author of The Hilarious World of Depression, which shares a name with his previous podcast.    Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Boost For U.S. Electric Vehicle Battery Production This week, the Biden administration announced it would issue grants totaling some $2.8 billion to increase U.S.-based production of electric vehicle batteries and mining of the minerals used in their manufacture. The grants would go to companies in 12 states to help boost domestic production of key battery ingredients such as lithium, graphite and nickel, reducing the country’s reliance on China and other foreign battery producers. Casey Crownhart, a climate and technology reporter at MIT Technology Review, joins John Dankosky to talk about the plan and the road ahead for U.S.-based electric vehicles. They also talk about a surge in renewables use in Europe, new options for COVID vaccine boosters, charges of environmental racism against the state of Louisiana, and new research into why some of us seem to be magnets for mosquito bites.   Climate Change’s Toll On Our Social Fabric Climate change is already driving many visible effects in our world, from extreme flooding to the extinction of species. It threatens agriculture and life on coastal lands. But researchers predict a changing climate can also affect humans in other, more nuanced ways, including changes in human behavior and mental health. Co-host Shahla Farzan talks to Stanford researcher Marshall Burke, whose research has looked at the link between climate extremes, including heat waves and drought, and historic and contemporary conflicts. Plus, John Dankosky interviews Queens College neuroscientist Yoko Nomura about her work finding high rates of childhood psychiatric disorders among children whose mothers were pregnant, and under extreme stress, during 2012’s Superstorm Sandy—a hint at the generational toll of intensifying disasters. They discuss why the answer to both challenges may be providing more social and economic support to those most vulnerable to stress as the globe warms.   The Mysterious Case Of Alaska’s Crabs For the first time ever, the Bering Sea snow crab fishery will not open for the upcoming season. Alaska’s Department of Fish and Game announced the closure Monday afternoon. The Bristol Bay red king crab fishery will also be closed this year — for a second year in a row. Gabriel Prout co-owns the F/V Silver Spray with his dad and brothers. The Silver Spray is a 116-foot steel crabber that’s homeported in Kodiak. He said he wasn’t surprised that Fish and Game closed the king crab fishery — in a normal year, he’d go out for king crab, too. But numbers have been on the decline and that fishery didn’t open last year, either. “The real shocking part is the total and complete collapse of the snow crab fishery which no one expected last year when it happened, and a complete closure this year was equally as shocking,” Prout said. Miranda Westphal, an area management biologist with Alaska’s Department of Fish and Game, said the sudden decline in snow crab came as a shock to biologists as well. Back in 2018, there was record recruitment in the Bering Sea snow crab stock. Those numbers started to go down in 2019, and there was no survey in 2020 due to the pandemic. Read the rest at sciencefriday.com. In Hawai’i, Conservation Has Also Provided Fishermen Economic Benefits Papahānaumokuākea Marine National Monument, along the northwestern Hawaiian islands, has been under some kind of conservation protection since the days of Theodore Roosevelt’s presidency. It is a deeply sacred place to native Hawaiians. And at more than 583,000 square miles, it’s also the world’s largest fully protected no-fishing zone, after its expansion under the Obama administration in 2016. Marine protected areas like Papahānaumokuākea are designed to provide refuge to fish and other marine mammals that have been overexploited and otherwise threatened by human activities. But research has remained inconclusive on if these protections provide enough benefits to nearby areas to blunt the economic impact of exclusion zones. This is especially debated in the case of big, mobile, migratory species like Hawai’i’s all-important bigeye and yellowfin tuna. Now, new research from an interdisciplinary team of economists and ecologists looked at how well Hawaiian tuna fishermen did when they fished close to the monument, and further away. And they found, to their surprise, that there was a strong benefit, which increased in the years after the monument’s expansion. Fishermen near the monument caught more tuna, for the same amount of effort, than fishermen further away. Co-host Shahla Farzan talks to first author Sarah Medoff about the surprising findings, and why the economics of a marine protected area might matter to conservation decisions.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Burying Green: Eco-Friendly Death Care On The Rise Dying, it turns out, isn’t carbon neutral. Like many of the choices we make in our lifetimes, the choice to cremate or preserve our bodies after death comes with tradeoffs as well. With preservation and burial, there’s the carbon cost of cemetery space, the materials to make a coffin, and the chemicals required to prevent decay. With cremation, the body’s carbon is released into the atmosphere through the burning of natural gas. This is one of the reasons why companies are starting to offer more eco-friendly options, such as water-assisted cremation. Composting human bodies is another option, allowing our carbon to be sequestered in the soil, and providing nutrients for ecosystems or gardens. But in the United States, these lower-carbon funereal options are often against the law. Now, that’s slowly changing, with pressure from people who wish to use those options for themselves when the time comes. Producer Kathleen Davis discusses these issues and more with mortician Caitlin Doughty and Katrina Spade, founder of Recompose, a company that has pioneered the practice of human composting. Plus, the relationship between grief, ritual, and the choices we have for our mortal remains.   This Brain Prosthesis Could Improve Memory Loss When people hear the word “prosthetic,” they’ll probably think of an arm or a leg. But what about a prosthetic for the brain? A team of neuroscientists is designing a device that could “zap” the brain into remembering information better, and it’s targeted for people with memory loss. They’re doing so by studying the electrical patterns involved in memory, then mimicking them with electrodes implanted in the brain. Ira speaks with Dr. Robert Hampson, neuroscientist at Wake Forest University School of Medicine, in Winston-Salem, North Carolina, who is working on the implant.     Making a Meal Fit For An Astronaut Life on the International Space Station throws some wrenches into how food and eating work. There’s very little gravity, after all. And there are big differences between nutritional needs on Earth and in space. Astronauts must exercise two hours each day on the International Space Station to prevent bone and muscle loss, meaning daily caloric intake needs to be somewhere between 2,500 and 3,500 calories. Sodium must also be reduced, as an astronaut’s body sheds less of it in space. Astronauts also have an increased need for Vitamin D, as their skin isn’t able to create it from sunlight as people on Earth do. So, how do all these limitations affect the food astronauts eat? Joining guest host Kathleen Davis to answer these gustatory questions is Xulei Wu, food systems manager for the International Space Station in Houston, Texas. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Scientists Are Trying To Study Human Neurons… In Rat Brains? Scientists have a tricky time studying neurons, partially because they are remarkably difficult to grow in a lab. They need other cells around them, and they don’t replicate or reproduce like other cells do. In a new study in Nature, researchers figured out that they can take a ball of human brain tissue and frankenstein it into a rat’s brain, and the rat can respond to it. This exciting discovery could offer scientists a new way to study the human brain. This week’s co-host Kathleen Davis talks with Umair Irfan, staff writer at Vox, about this story and other science news of the week. They chat about neurons that can play ping pong, COVID updates, a disturbing uptick in STI cases, how deep sea mining could destroy an underappreciated ecosystem, and how a mummified dinosaur named Dakota is challenging what paleontologists knew about dino preservation.   How Gamification Has Crept Into School, Work, And Fitness Gamers often spend hours embarking on quests, unlocking new levels, and collecting badges. But what about when aspects of games start popping up in other parts of life—like work, school, and exercise? Adrian Hon created the fitness app “Zombies, Run!” and has thought a lot about how the principles of gaming have crept into so many different corners of our lives, and why it may not always be as innocent as it seems. Ira and co-host Kathleen Davis talk with Adrian Hon, author of You’ve Been Played: How Corporations, Governments, and Schools Use Games to Control Us All. Hon is also the CEO and founder of the game developer, Six to Start, based in Edinburgh, United Kingdom.   A Taste Of New York In A Hyper-Local Beer If you’re a person who enjoys beer, you’ve likely been aware of the craft beer boom of the last couple of decades. India Pale Ales, or IPAs, have become some of the most popular types of beer brewed in local breweries. But it doesn’t get more local than a type of beer that most people have never heard of: the gruit. The gruit traces its origins back to the 11th century. Historically, instead of hops, brewers used herbs and spices native to wherever they lived. This results in a flavorful beer that changes taste depending on the plant life in the region. Fast forward a few hundred years to now, and you’ll find brewers getting back to this hyper-local brewing tradition. Those brewers include Isaac Patient, head brewer of Sixpoint Brewery in Brooklyn, New York. His team partnered with Saara Nafici and Brendan Parker at Red Hook Farms to procure four key herbs for the brew: rosemary, tarragon, lemongrass, and mugwort.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Politics Of Science: Voters Have An Important Voice This November’s general election season covers every level of government, from Congress at the federal level, to state governors and local ballot initiatives. Also on the ballot are many issues where understanding science better might result in better policy—think zoning questions about building next to rising seas or fire-prone wildlands, or questions about drug legalization and abortion access. Even whether to invest in education that might create more STEM workers—that’s a science question too. Ira talks to Rachel Kerestes of the American Association for the Advancement of Science’s ‘Science is US’ initiative, and Howard Learner of the Environmental Law & Policy Center. They cover region-specific and state-specific science concerns, the need to connect more policy makers to scientific expertise, and how voters can have a voice in science issues even at the local and state level. Make your voice heard! Go to www.sciencefriday.com to fill our our survey about which science issues you see on your ballot.   Svante Pääbo Awarded Nobel For Examining The Ancient Human Genome This week, geneticist Svante Pääbo was awarded the 2022 Nobel Prize in Physiology or Medicine. Pääbo is the director of the Max Planck Institute for Evolutionary Anthropology in Leipzig, and his research looks at finding bits of genetic material from ancient hominid lineages embedded within the modern human genome. The prize committee awarded the prize “for his discoveries concerning the genomes of extinct hominins and human evolution.” Pääbo described his work as like an archeological dig. “We sort of make excavations in the human genome,” he said. “What we do is to look for the genetic material, for DNA, from people who have lived here long before us, and try to see how they are related to us, and how they are related to other forms of humans that were also here, such as Neanderthals.” In a conversation recorded in 2017, Pääbo describes his research, and how his team has developed molecular techniques to see where fragments of ancient DNA might still be found in the modern human genome. Spoiler alert—we’re all a little bit Neanderthal.   What We Can Learn About Diabetes From Hibernating Bears About one in 10 Americans have diabetes, and most of the cases are Type 2, in which cells become more resistant to insulin. But wouldn’t it be cool if we could flip a switch so those cells become sensitive to insulin again? That’s pretty much what bears do when they hibernate. A new study in the journal iScience identifies the eight proteins that allow bears to turn their insulin on and off, which keeps them from burning through their fat stores while they snooze. Although they hibernate for months, bears wake up from their slumber with their muscle still toned, bones intact, and organs functioning normally. But after a few weeks on bedrest, humans can’t. By studying how bears hibernate, researchers hope to find ways to cure human ailments. Dr. Blair Perry, a postdoc studying genomics at Washington State University, joins Ira to talk about what we can learn from bear biology.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Hurricane Ian Destroys Iconic Florida House Meant To Survive Hurricanes The Cape Romano Dome House, built in 1982, was an iconic—if more recently unsightly—piece of Florida architecture. The six interconnected domes located in Collier County, Florida, were built to be hurricane resistant and self-sustaining, with solar power, rainwater harvesting, and other innovations. However, erosion and rising sea levels had put the structure at risk, with the structure’s foundation pillars being completely underwater by 2009. Last week’s Hurricane Ian finally destroyed the structure. Sophie Bushwick, technology editor at Scientific American, joins Ira to talk about the symbolic loss of the building and other stories from the week in science. They discuss possible approaches to repair the damaged Nord Stream gas pipeline, the finding that certain cancerous tumors contain their own microbiomes of bacteria and fungi, and the delicate process of interpreting the behavioral cues of your feline friends.   How States Are Planning To Power The Electric Vehicle Boom California and New York recently adopted regulations which ban sales of new gas-powered vehicles by 2035. Several other states are likely to quickly follow suit. But the uptick in vehicle demand will also require new infrastructure, and increase demand for mining metals used to produce car batteries. Jessika Trancik, professor at the Institute for Data, Systems and Society at Massachusetts Institute of Technology, and David Reichmuth, senior engineer for the Union of Concerned Scientists’ Clean Transportation Program, join Ira Flatow to discuss the future of electric vehicles. Plus, Eric Gebhardt, chief technology officer at Wabtec, an industrial locomotive company, discusses the challenges and promise of battery-electric trains.    

New Alzheimer’s Drug Reduces Cognitive Decline, Say Biotech Firms This week, the biotech firms Biogen and Eisai released preliminary data from the clinical trials for their new Alzheimer’s drug, lecanemab. The companies said that the drug slowed cognitive decline by 27% in patients treated with the intravenous medication. It’s likely the drug will get the FDA’s approval by the end of the year. This all comes after the recent controversy surrounding Biogen’s last Alzheimer’s drug Aduhelm. Medicare recently announced that they will not cover that drug and others like it, unless patients are enrolled in a clinical trial. Guest host John Dankosky talks with science journalist Roxanne Khamsi about this and other top science news of the week including a diamond that hints that Earth’s mantle contains water, brainy birds, and hearing aids made of false teeth.   Bangladeshi Farmers Found A Way To Save Massive Amounts Of Water The People’s Republic of Bangladesh is one of the most densely populated countries on Earth, with a population of 165 million people living in an area a bit smaller than the state of Iowa. To feed all those people, farmers in Bangladesh work year-round: Instead of just growing crops during the rainy monsoon season, they grow a second or even third crop during the dry season—using groundwater to irrigate, and creating a more food-secure region. Research published in the journal Science this month found something amazing about all that groundwater. By pumping water for crops in the dry season, Bangladeshi farmers were leaving space in the aquifers to recharge during the rainy monsoon season. And this space allowed the aquifers to recapture more than 20 trillion gallons of water, or twice the capacity of China’s massive Three Gorges Dam, over the last 30 years. The researchers call this the Bengal Water Machine, evidence for a similar concept that was first proposed nearly 50 years ago called the Ganges Water Machine. Guest host John Dankosky talks to lead author Mohammad Shamsudduha and International Water Management Institute researcher Aditi Mukherji about how this groundwater pumping benefits farmers, and the need for more data as climate change continues.   This Soundscape Artist Has Been Listening To The Planet For Decades Jim Metzner is one of the pioneers of science radio—he’s been making field recordings and sharing them with audiences for more than 40 years. He hosted shows such as “Sounds of Science” in the 1980s, which later grew into “Pulse of the Planet,” a radio show about “the sound of life on Earth.” Over the decades, Metzner has created an incredible time capsule of soundscapes, and now, his entire collection is going to the Library of Congress. John Dankosky talks with Metzner about what he’s learned about the natural world from endless hours of recordings and what we can all learn from listening. Plus, they’ll discuss some of his favorite recordings. To hear the best audio quality, it might be a good idea to use headphones if you can.  

After Hurricane Ian, Robots To The Rescue Hurricane Ian made landfall in southwest Florida Wednesday, with winds over 150 miles per hour, high storm surge and heavy rains. As the storm, now weaker, is projected to move northward, search and rescue operations are setting out to assess the damage – with help from robots, both flying and swimming. Producer Christie Taylor talks with David Merrick, who is leading the emergency management team responsible for flying drones over areas hit by disasters like Ian, about what it takes to use robots in these contexts and how they help speed up response and recovery efforts.   Vague Medical Marijuana Rules Leave Workers and Employers in the Dark Vague legal safeguards for medical marijuana users in Pennsylvania are forcing patients to choose between their job and a drug they say has changed their life, and leaving skittish employers vulnerable to lawsuits, according to a three-month Spotlight PA investigation. While state law protects workers from being fired or denied a job just for having a doctor’s permission to use marijuana, those protections become opaque when people actually take the drug — regardless of whether they do it in their personal time. “It essentially makes no sense,” Pittsburgh attorney John McCreary Jr., who represents employers, told Spotlight PA. Some jobs are specifically regulated by state and federal drug testing rules, but most fall into a gray area that leaves the interpretation of the rules up to employers and the courts. That leads to inconsistency and what employers see as a lose-lose scenario: Either risk a wrongful termination suit, or potentially allow an unsafe work environment. Read the rest of the article at sciencefriday.com.   The DART Asteroid Impact Mission: It’s A Cosmic Smash This week, a small spacecraft slammed into an asteroid—on purpose. The mission, known as DART (for ‘Double Asteroid Redirection Test’) was an effort to try out a potential means of planetary defense. NASA wanted to discover: Is it possible to change the path of an approaching asteroid by slamming something into it? On Monday evening, the DART spacecraft slammed into the small asteroid moonlet Dimorphos, which orbits a slightly larger asteroid called Didymos. Pictures taken from onboard the spacecraft showed the rocky, rubbly terrain of Dimorphos approaching closer and closer, then disappearing, while telescopes observing the impact and cameras on a neighboring Italian Space Agency CubeSat showed a plume of debris ejected from the asteroid. Dr. Nancy Chabot, the DART coordination lead and a planetary scientist at Johns Hopkins Applied Physics Laboratory, which built the spacecraft and is managing the mission for NASA’s Planetary Defense Coordination Office, joins host John Dankosky. They talk about the impact, and what scientists hope to learn about asteroids and planetary defense from the crash.   High-Flying Trick-Or-Treat Delivers Rabies Vaccines For Raccoons Rabies is one of the deadliest diseases in the world. It’s fatal in 99% of cases. Because of that, rabies prevention has been one of the most important—and successful—public health initiatives in the US. To contain rabies outbreaks, the USDA leads a mass vaccination effort from August to October to keep the disease from being carried by critters. It’s an action-packed adventure involving raccoons, helicopters, and fish-flavored candy. SciFri’s director of news and audio, John Dankosky, speaks with Jordona Kirby, the rabies field coordinator for the USDA’s National Rabies Management Program. She’s based in Milton, Florida.   Can Lanternflies’ Excretions Be Used To Quell Their Spread? As the invasive spotted lanternfly continues to spread west in the United States, researchers are trying to better understand—and perhaps find a way to control —the behavior of the pretty, but ravenous, insects. Important agricultural crops, including grapes, peaches, and apples are especially at risk from the spreading infestation. As the lanternflies feed on tree sap, they excrete a sweet-smelling liquid known as honeydew. That liquid can attract other insects, and can also allow fungus to grow on affected trees. Writing in the journal Frontiers In Insect Science this week, researchers from the USDA’s Animal and Plant Health Inspection Service report that chemicals in the honeydew may act as a signaling agent among the lanternflies—in some cases attracting others of the species. The finding may help explain the way in which the insects can infest a given tree in huge numbers, while leaving neighboring trees largely alone. John Dankosky talks with the paper’s lead author, Dr. Miriam Cooperband of USDA APHIS, about her research, and whether the finding may lead to a way to bait or repel the invasive insects.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Sperm Swim Together To Help Each Other Reach The Egg New research is complicating our understanding of how, exactly, sperm are able to reach eggs. The predominant theory is that sperm compete against each other, with the strongest swimmer fertilizing the egg. But a new study, using cow sperm, suggests that sperm might actually swim together, forming clusters to help each other swim upstream to reach the egg. Researchers created a device that has some of the features of a female reproductive tract, which they tested using a polymer substance that mimics cervical mucus. The intensity of the flow of this mucus-like fluid influenced how well the sperm clustered together. The faster the flow, the more likely the sperm were to band together to swim upstream. Ira talks with Dr. Chih-Kuan Tung, associate professor of physics at North Carolina Agricultural and Technical State University about his research on sperm motility, and how it could improve infertility testing in the future.   Mars Rover, Move Over: Making A Rover To Explore The Deep Sea   When you hear the word ‘rover,’ it’s likely your brain imagines another planet. Take Mars, for instance, where the steadfast rolling science labs of Perseverance and Curiosity—and the half dozen robotic rovers before them—slowly examine the geology of the Red Planet for signs of past habitability. But Earth has rovers too. The autonomous, deep-sea Benthic Rover II, engineered by researchers at the Monterey Bay Aquarium Research Institute (MBARI), trawls a desolate surface too—this one 4,000 meters below the surface of the ocean, on a cold abyssal plain, under the crushing weight of 6,000 pounds per square inch of pressure. Deep beneath the surface, the rover is seeking data about carbon: What carbon sources make it down to such a deep sea floor? And does that carbon return to the atmosphere as carbon dioxide, where it might contribute to global warming, or sequestered safely as an inert part of the ocean sediment? Ira Flatow talks to engineer Alana Sherman and ecologist Crissy Hufford, both of MBARI, about the work it takes to make a rover for the deep sea, and the value of its data as we look to the future of our oceans.   Ukraine’s Ongoing Tragedy Inspires Teenage Inventor To Locate Landmines Igor Klymenko is a 17-year-old inventor from Ukraine, and he recently won the Chegg.org Global Student Prize—a $100,000 award given to a young change-maker. Klymenko won it for his invention, the Quadcopter Mines Detector, which is designed to locate underground landmines. The issue of unexploded landmines cannot be understated—some estimates show there could be about 100 million of them scattered across the globe. Klymenko is a student at both the University of Alberta in Canada and the Igor Sikorsky Kyiv Polytechnic Institute in Ukraine. He joins Ira this week to talk about the Quadcopter Mines Detector, and how he’s trying to help his home country, Ukraine, through engineering.   Getting the Dirt On The World Of Competitive Soil Judging If you’re looking for a new sport or hobby to try, forget about rock climbing or kitesurfing. If you don’t mind getting a bit dirty, consider competitive soil judging—a contest in which contestants work to best analyze, identify, and describe the layers of soil in a 5-foot-deep trench dug into a field. People can compete either individually, or in a team format, where different members of the team work to describe the soil’s characteristics—from color, to grain size, to how it interacts with water. Clare Tallamy, a senior at Virginia Tech majoring in environmental science, recently won the individual competition in an international soil judging contest held in Scotland as part of the 2022 World Congress of Soil Science. She joins Ira to describe how soil judging works, gives an introduction to soil taxonomy, and explains the practical significance of being able to excel at judging a sample of soil.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Biden Declares The COVID-19 Pandemic Over. Is It? During an interview with 60 minutes last weekend, President Joe Biden said “the pandemic is over.” “The pandemic is over. We still have a problem with covid, we’re still doing a lot of work on it. But the pandemic is over. If you notice, no one is wearing masks. Everybody seems to be in pretty good shape, “ Biden said at the Detroit auto show. This comment has prompted some dismay from the public health community. The World Health Organization hasn’t declared the pandemic over just yet. And the criteria to declare a pandemic over is nuanced and cannot be declared by the leader of a single country. Ira talks with Katherine Wu, staff writer at the Atlantic, about that and other top science stories of the week including a new ebola outbreak in Uganda, the latest ant census, and Perseverance’s rock collection.  Diving Into The Biggest Ideas In The Universe Can mere mortals learn real physics, without all the analogies? Dr. Sean Carroll, Homewood Professor of Natural Philosophy at Johns Hopkins University and author of The Biggest Ideas in the Universe: Space, Time, and Motion, says yes—if you’re willing to accept a bit of math. Carroll says that he dreams of a world in which ordinary people can have informed ideas on physics, and might argue about the latest black hole news as urgently as they might debate a sports team’s performance in last night’s game. His new book starts with some of the basics of motion that might be taught in an introductory physics class, then builds on them up through concepts like time and black holes. Carroll joins Ira to talk about the book, exploring where physics equations leave off and philosophical concepts begin, and the nebulous world in between. To read an excerpt of The Biggest Ideas In The Universe: Space, Time, and Motion, visit sciencefriday.com. Was Soylent Green Right About 2022? In the spring of 1973, the movie Soylent Green premiered. The film drops us into a New York City that’s overcrowded, polluted, and dealing with the effects of a climate catastrophe. Only the city’s elite can afford clean water and real foods, like strawberry jam. The rest of the population relies on a communal food supply called Soylent. There’s Soylent Red, Soylent Yellow… and a new product: Soylent Green. The year the film takes place? 2022. And spoiler alert: Soylent Green is people. While the 2022 the film depicts is—thankfully—much darker than our current situation, the message still holds up. When the film premiered, Rachel Carson’s Silent Spring and the Clean Air Act were very much in the country’s consciousness. 50 years later, warmer temperatures, soil degradation, and social inequality are more relevant than ever. Joining Ira to talk about the importance of Soylent Green 50 years later is Sonia Epstein, associate curator of science and film at the Museum of the Moving Image in New York City. Also joining is soil scientist Jo Handelsman, director of the Wisconsin Institute for Discovery in Madison, Wisconsin.  Saturn’s Rings Might Be Made From A Missing Moon Saturn’s rings are one of the most stunning, iconic features of our solar system. But for a very long time, Saturn was a ring-less planet. Research suggests the rings are only about 100 million years old—younger than many dinosaurs. Because Saturn wasn’t born with its rings, astronomers have been scratching their heads for decades wondering how the planet’s accessories formed. A new study in the journal Science suggests a new idea about the rings’ origins—and a missing moon may hold the answers. Co-author Dr. Burkhard Militzer, a planetary scientist and professor at UC Berkeley, joins Ira to talk about the surprising origins of Saturn’s rings. Want to know more? Listen to this previous Science Friday episode about Saturn’s formation.  Transcripts for each segment will be available the week after the show airs on sciencefriday.com. 

Pulling Water From Thin Air? It’s Materials Science, Not Magic. You’ve probably seen a magic trick in which a performer makes a playing card, coin, or even a rabbit appear out of thin air. Writing in the journal Nature Communications, researchers at UT Austin describe an experiment where they seem to pull water out of dry air—but it’s not magic, and it’s not a trick. Carefully applied materials science and engineering allows the team to extract as much as six liters of water per day from one kilogram of their polymer, even in areas with 15% humidity. That’s drier than the Sahara Desert. The material itself contains two main ingredients. First, a konjac gum, which can be found in Asian cooking, rapidly absorbs water from the air. (In scientific terms, it’s a “hygroscopic material.”) The second ingredient, hydroxypropyl cellulose, responds dramatically to changes in temperature. So at lower temperatures, the team’s polymer film absorbs water, but can rapidly release that water when the film is heated by the sun or artificial heating. Dr. Guihua Yu, a professor of materials science and mechanical engineering at UT Austin and one of the authors of the report, joins Ira to talk about the material, its applications, and what challenges remain before it can be put into widespread use. An AI Partnership May Improve Breast Cancer Screenings Reading a mammogram is a specialized skill, and one that takes a lot of training. Even expertly-trained radiologists may miss up to 20% of breast cancers present in mammograms, especially if a patient is younger or has larger, denser breasts. Researchers have been working since the advent of artificial intelligence to find ways to assist radiologists in making more accurate diagnoses. This July, a German research team, publishing in The Lancet Digital Health, found that when AI is used to help sort mammograms into low, uncertain, and high risk categories, a partnership between the radiologist and the algorithm leads to more accurate results. To explain how this result may be translated into real clinical settings, Ira talks to Harvard’s Constance Lehman, a longtime researcher in the field of breast imaging. She talks about the promise of AI in breast cancer screening, its limitations, and the work ahead to ensure it actually serves patients. A Smoky Aftertaste: Keeping Wildfires Out Of Your Wine Glass Readers who love wine: It’s time to have a serious talk. California, Washington and Oregon are three of our largest wine-producing states. They’re also some of the states most prone to wildfires. The West Coast is in the midst of its wildfire season, which makes us wonder: How does smoke impact the wines that come from this region? And what could this mean for those who enjoy a Napa Valley merlot, or an Oregon pinot noir? There’s an area of food science research dedicated to answering these questions. Factors like the length of smoke exposure, the chemical composition of that smoke, and the type of wine being created all factor into how the final wine product tastes. The best side of a smoked wine spectrum is a mild campfire flavor. The bad side is burning tires. Joining Ira to talk about how scientists are working to better understand how wildfire smoke impacts wine is Dr. Cole Cerrato, assistant professor of food science at Oregon State University in Corvallis, Oregon. Artemis Update: What Will It Take To Make It Back To The Moon? Sixty years ago this week, President John F. Kennedy gave an historic address at Rice University, in which he laid down a challenge to the nation and the world. “But why, some say, the moon? Why choose this as our goal? And they may well ask why climb the highest mountain? Why, 35 years ago, fly the Atlantic? Why does Rice play Texas? We choose to go to the moon. We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.” Six decades later, going to space is still hard. This week, a flight of Blue Origin’s ‘New Shepard’ rocket experienced ‘an anomaly’ during a launch, triggering the escape system for the capsule (which, thankfully, was uncrewed.) And the Artemis 1 mission, the first test flight of America’s planned return to the moon, is on hold while a leaking fuel line is addressed. Dr. John Blevins, the chief engineer for the Space Launch System, the massive rocket powering the Artemis 1 flight, joins Ira to provide an update on the mission, and why, after 60 years, the trip to the moon still contains so many challenges to be overcome.   This Astrophysicist Holds Star Data In The Palm Of Her Hand When you look into the sky, the space between stars looks empty and void—but it isn’t. That’s where stars are born. And since astronomers and astrophysicists can’t reach these stellar nurseries, they rely on data collected by telescopes to peer into space. But what if you could hold part of the galaxy in their hands? Or peer into an orb and see the birthplace of stars? By combining astrophysics and art, that’s exactly what Dr. Nia Imara does. She’s a visual artist and assistant professor of astronomy at UC Santa Cruz, based in Santa Cruz, California. Imara talks with Ira about studying stellar nurseries, how she creates stellar nursery spheres, and what she can learn from holding them in her hand. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Why The Owner of Patagonia Gave Away The Whole Company Earlier this week, the founder and owner of Patagonia Yvon Chouinard—the company known for their famous puffer jackets and outdoor gear—gave away the whole company. Who’d he give it to? The Earth. “Hopefully this will influence a new form of capitalism that doesn’t end up with a few rich people and a bunch of poor people,” Chouinard told David Gelles for The New York Times. “We are going to give away the maximum amount of money to people who are actively working on saving this planet.” Purbita Saha, deputy editor at Popular Science, debriefs Ira on Chouinard’s decision, as well as other science stories of the week. They talk about if it’s safe to get the COVID booster and flu shot at the same time, how a new blood test could catch early stages of cancer, why the night sky is bluer, the reason why NASA is crashing a spacecraft into an asteroid, and the fight over trash between cockatoos and Australians.   Depression Isn’t Caused By Low Serotonin. So How Do Antidepressants Work? In 2001, a now classic Zoloft commercial hit the airwaves—featuring a sad little blob with a rain cloud following it around. The commercial explains that “while the cause is unknown, depression may be related to an imbalance of natural chemicals between nerve cells in the brain. Prescription Zoloft works to correct this imbalance.” That theory of depression as a chemical imbalance is based on a simple premise: Depressed people’s brains lack serotonin. If a patient takes a serotonin reuptake inhibitor (SSRI), like Prozac or Zoloft, it boosts their serotonin levels, and their depression lifts. The trouble is that when researchers started testing this theory they found it didn’t hold up. Serotonin is certainly involved in depression. But it’s way more complicated than it originally seemed.To be clear, there is a body of research showing that antidepressants do work—it’s just unclear exactly how they work. Read the rest at sciencefriday.com. Understanding Metabolism Genes Might Improve Depression Treatment Sometimes finding the right antidepressant medication is basically trial and error. Scientists are still trying to figure out why some antidepressants work for some people, but not others. Researchers at the Veterans Administration wanted to know if genetic testing might help doctors with prescribing the antidepressant best suited for their patients. Specifically, they examined genes that indicate whether or not someone is able to properly metabolize a medication. Ira is joined by Dr. David Oslin, professor of psychiatry at the Crescenz Department of Veterans Affairs Medical Center and University of Pennsylvania Perelman School of Medicine, to explain his latest research and its broader implications.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

COVID-19’s Lingering Toll On The Heart As new omicron-specific boosters against COVID-19 unroll in cities around the US, research is revealing more about the longterm consequences of even one infection with the SARS-CoV2 virus. Writing this week in Nature Medicine, a team of researchers from Germany describe finding long-lasting signs of heart disorders in the majority of recovered patients in their study group–even up to nearly a year later. FiveThirtyEight’s Maggie Koerth joins Ira to describe the research and how it fits into what we’re learning about the scope of Long Covid. Plus taking the temperature of the melting Thwaites Glacier, new insights into the genes of both immortal jellyfish and human astronauts, and a post-mortem of the world’s first known amputation. Why Are Dead Fish Piling Up Across The San Francisco Bay? Thousands of dead fish are piling up across the Bay Area. From the concrete outer edges of Oakland’s Lake Merritt to the sandy beaches of San Francisco’s Fort Funston and the pebbled banks of Oyster Point in San Mateo County, the carcasses of fish likely poisoned by a harmful algal bloom — more commonly known as a red tide — are washing ashore. It’s a mass-death event the San Francisco Bay hasn’t seen the likes of in years, says Jon Rosenfield, senior scientist with environmental group San Francisco Baykeeper. “From a fish’s point of view, this is a wildfire in the water,” he said. By SF Baykeeper’s count, the number of fish dying off in the San Francisco Bay could easily exceed hundreds of thousands, and that, Rosenfield said, might even be a “low” estimate. His field investigator confirmed “easily tens of thousands of fish dead” in Lake Merritt alone. But Rosenfield cautioned, “What you see is just the hint of what’s actually happening further beneath the water’s surface and in places you’re not getting to on the shoreline. So it’s really an uncountable number.” It may be harmful to humans, too. An algal bloom of this size can cause skin irritation and respiratory problems, and the San Francisco Bay Regional Water Quality Control Board is advising people to avoid swimming, kayaking or other activities on the water until the bloom subsides. Read the full story at sciencefriday.com. As Temperatures Get Warmer, Fish Are At Risk Climate change is expected to have a big effect on a sensitive group of creatures: fish. A new study out of the University of Arkansas predicts that there is likely to be a six-fold increase in large fish mortality events between now and 2100, specifically in freshwater lakes in Minnesota and Wisconsin. Known as “summerkills” and “winterkills”, seasonal die-offs are a part of fishy nature, but have been happening at a greater frequency as temperatures increase. That’s due to climate change-related factors like algal blooms, infectious disease, and oxygen deprivation. Joining Ira to talk about the future for freshwater fish is Simon Tye, PhD candidate in biology at the University of Arkansas in Fayetteville.  As The World Decarbonizes, Sulfuric Acid May Be In Short Supply A move towards more alternative energy sources and away from fossil fuel production is a net positive for the world. But there’s an unanticipated side effect—a possible global sulfuric acid supply shortage. Eighty percent of the world’s sulfuric acid is the byproduct of fossil fuel production. Cutting back on coal, oil, and natural gas means producing less sulfur acid. That’s important as sulfuric acid is critical to making fertilizer, as well as green technology like solar panels and batteries. Ira talks with Mark Maslin, professor of Earth System Science at University College London, about his latest research, which points to a looming sulfur shortage. The New G.O.A.T Of Park Systems Is An Actual Goat If you walk into a park, the odds are pretty high that you’ll find an invasive plant species, like buckthorn, giant hogweed, or multiflora rose. These resilient plants can often grow uncontrollably and out-compete native species for resources, which has consequences for native wildlife that depend on other native plants. They can also be incredibly difficult to remove. That’s why a growing number of parks across the United States are turning to unlikely helpers: goats. Conservation grazing is a practice in which livestock are used to maintain biodiversity. Because goats eat almost everything, they chow down on invasive plants and make them much easier to remove. Radio producer Rasha Aridi speaks with Hillary Steffes, the chief goat herder at Allegheny GoatScape in Pittsburgh, Pennsylvania, about using goats as a conservation tool. Then, Rasha takes a trip to Riverside Park in NYC to meet some goats, and talk with Marcus Caceres, a field supervisor at the Riverside Park Conservancy. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.        

The Hot And Cold Past Of The Air Conditioner In the Northeast, the leaves have started changing colors, heralding the season of pumpkins, sweaters, and the smell of woodsmoke. But in some parts of the country, the heat hasn’t let up. In cities like Dallas, Phoenix, and Miami, temperatures were up in the high 80s and low 90s this week—and with climate change, the U.S. is only getting hotter. But humans have come up with an ingenious way to keep the heat at bay: air conditioning. Widely considered one of the greatest engineering achievements of the 20th century, the technology has transformed how and where people live—and it’s prevented countless deaths. But it comes at a cost, and if we’re going to keep up with a warming climate, we’re going to need some other tricks to stay cool. Remembering Frank Drake, Who Listened To The Cosmos Last week, astronomer and SETI pioneer Dr. Frank Drake died at the age of 92. Dr. Drake was a key figure in the search for extraterrestrial intelligence—from Project Ozma in 1960, to the founding of the SETI Institute. He collaborated on the ‘Golden Record’ that Earth sent to the stars on board the Voyager space probes. Drake also created a mathematical way of estimating the probability of discovering signs of intelligent life, a calculation that became known as the Drake Equation, and spent years advocating for the search for alien life. Drake appeared on Science Friday many times over the years. Here, in excerpts from conversations recorded in 2010 and 2016, he talks with Ira about the search for extraterrestrial intelligence, and his role with the Voyager Golden Record project. Our condolences to his family, friends, and colleagues. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

New, Extra Protective COVID Vaccines Are On The Way Earlier this week, the FDA approved brand new COVID-19 vaccines from both Moderna and Pfizer-BioNTech that are designed to better protect people from the BA.4 and BA.5 omicron subvariants. At the same time, the U.S. is scaling back free testing and precautionary measures, putting more pressure on vaccines. Casey Crownhart, a climate and technology reporter at MIT Technology Review, joins Ira to talk about COVID updates and other science news of the week. They also discuss how the U.S. is bracing for a record-breaking heatwave, the devastating floods in Pakistan, how the city of Jackson, MI ended up without running water, why Greenland’s “zombie ice” is causing concern, a massive investment in solar power, and a clue as to how the Ancient Egyptians built the pyramids of Giza.   New Jersey’s Lenape Nation Fights Ford’s Toxic Legacy The Turtle Clan of the Ramapough Lenape Nation has lived in the wooded hills around Ringwood for centuries, enduring the impacts of European settlement and the building up of America. But the toxic waste that now surrounds the Passaic County community is from an invasion of an entirely different kind. And it wasn’t long before residents started getting sick. When the federal government created the National Priorities List, better known as Superfund, in 1980, abandoned iron mines in Ringwood were among the first sites to be listed; they made the list in 1983. Between 1965 and 1974, the Ford Motor Company dumped hundreds of thousands of gallons of paint sludge, solvents and other waste into the mines scattered throughout the Turtle Clan’s homeland. By then, the southern portion of the site had been sold off by Ford to the Ringwood Solid Waste Management Authority, which went on dumping more waste onto and into the already toxic land. Arsenic and lead, benzene and 1,4-dioxane leached into groundwater. Kids played among slabs of hardened paint sludge. Adults scavenged the dump sites for copper and other valuable metals. Read the rest at sciencefriday.com. Coming Soon: A Germ-Killing Countertop? From restaurant tables to office door knobs, not to mention anything inside a hospital, the world is full of surfaces that need sanitizing, lest someone catch a surface-borne viral or bacterial infection like the flu or MRSA. The typical solution involves sanitizing those surfaces with sprays and fluid cleaners. Or, sometimes, using materials that are hostile to microbes, such as silver or copper. But a team of engineers at the University of Michigan has another solution in mind: a spray-on coating that combines the stabilizing power of polyurethane with the well-documented germicidal qualities of essential oils such as cinnamon, tea tree, and lemon. As the team reports in the journal Matter this week, their coating seems to kill pathogens like SARS-CoV2, MRSA and E. coli within minutes—and lasts for months before it must be refreshed. Research co-author Anish Tuteja joins Ira to talk about the innovation, and how he thinks it might be useful.   The Surprising Animal Science Behind Jordan Peele’s ‘Nope’ One of the summer’s biggest blockbusters has been the alien horror film “Nope,” from director Jordan Peele. “Nope” has elements of many classic UFO films, with the Spielbergian charm of “Close Encounters of the Third Kind,” and the horror and destruction from “The War of the Worlds.” For the spoiler-averse, this is your warning to turn back now. The big twist in “Nope” that differentiates it from other alien films is that it isn’t a UFO hanging out in the skies above our main characters. The saucer-shaped figure is the alien itself. Writer and director Jordan Peele attributes much of the inspiration for the alien as coming from sea creatures. He enlisted the help of scientific consultants including marine biologist Kelsi Rutledge to help bring the creature, known in the film as Jean Jacket, to life. She even gave it a scientific name: Occulonimbus edoequus, meaning “hidden dark cloud stallion eater.” Kelsi, who is a PhD candidate at UCLA in Los Angeles, California, talks to Ira about the ingredients that went into creating a new creature to scare audiences.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Why Is It So Hard To Agree On When Human Life Starts? After decades of deliberations involving physicians, bioethicists, attorneys, and theologians, a U.S. presidential commission in 1981 settled on a scientifically derived dividing line between life and death that has endured, more or less, ever since: A person was considered dead when the entire brain—including the brainstem, its most primitive portion—was no longer functioning, even if other vital functions could be maintained indefinitely through artificial life support. In the decades since, the committee’s criteria have served as a foundation for laws in most states adopting brain death as a standard for legal death. Now, with the overturning of Roe v. Wade and dozens of states rushing to impose abortion restrictions, American society is engaged in a chaotic race to define the other pole of human existence: When exactly does human life begin? At conception, the hint of a heartbeat, a first breath, the ability to survive outside the womb with the help of the latest technology? To read the full article, visit sciencefriday.com.   Taxpayer-Funded Science Is Finally Becoming Public Last week, the White House Office of Science and Technology Policy announced a new directive requiring federally-funded science be made available to the public for free, and faster. Set to take effect by the end of 2025, the new rule would do away with the Obama-era policy that journals can keep research with taxpayer funding behind paywalls for up to one year. In addition, more kinds of research would qualify than previous policies have required. So how does freely accessible research benefit the people who pay for it—or the scientists who do the work itself? Nobel Prize-winning medical researcher and open science advocate Harold Varmus joins Ira to discuss.   Why You Should Thank Your Local Wasp It’s late in the summer, meaning any outdoor gathering with food and drink has a good chance of being visited by a pesky, buzzing wasp. But don’t reach for that rolled-up newspaper or can of bug spray. The wasps in your world play an important role that’s often overlooked. Far beyond the social hornets and yellowjackets people think about when they picture a wasp, the wasp world includes thousands of species. Some are parasitic, injecting their eggs into unwilling prey. Others hunt, either paralyzing prey for their young to feed on, or by bringing bits of meat back to a nest for their young. Some are strictly vegetarian, and live on pollen. Some are needed for the pollination of figs and certain species of orchids. Dr. Seirian Sumner, a behavioral biologist at University College London, says that if people understood the services provided by wasps the same way that they understand the need for bees, they might be more willing to overlook an occasional wasp annoyance—and might even be thankful for the wasps in their lives. In her book Endless Forms: The Secret World of Wasps, Sumner makes the case for wasps as nature’s pest control agents, as important pollinators that should be celebrated.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

California Accelerates Its Push For Electric Cars This week, air pollution regulators in California voted to phase out sales of new gasoline-powered vehicles, with a complete ban on gas car sales by 2035. The decision could have a larger impact on the automobile industry, however, as many states choose to follow California’s lead with regard to air quality and emissions decisions. Sophie Bushwick, technology editor at Scientific American, joins guest host Roxanne Khamsi to help unpack the decision. They also discuss some of the other science stories from this week, including a survey-based study showing that Americans really do care about climate change and support mitigation measures, a look at how sugar substitutes can change the microbiome, and an engineer’s advice for how to build the sturdiest sandcastles.   Meet Two Autistic Researchers Changing How Autism Research Is Done For many decades, autistic people have been defined by non-autistic people, including in science. Since the very beginning of research about autistic people, neurotypical scientists and institutions have been at the helm. The field has largely been defined by what neurotypical researchers are curious about learning, instead of prioritizing research that the autistic community asks for. Because of that, and the invisibility of autistic adults in our society, a large chunk of this research has neglected the needs of autistic people. In many cases, it’s caused harm to the very people the research aims to help. Until recently, there have been very few openly autistic researchers who study autism. But there is a growing body of openly autistic scientists who are using both their expertise and their own lived experiences to help shape the future of autism research. Guest host Roxanne Khamsi speaks with Dr. TC Waisman, a leadership coach and researcher studying autism and higher education, based in Vancouver, British Columbia, and Patrick Dwyer, a Ph.D. candidate studying sensory processing and attention in autism at the University of California, Davis. They talk about the history of autism research, why the inclusion of autistic people in research leads to more helpful outcomes, and how they see the future of autism research changing. Ira Kraemer consulted on this story.   Ecological Data From Deep In The Pantry Most people wouldn’t be excited by a call offering a basement full of canned salmon dating back to the 1970s. But for researchers trying to establish baselines for what’s normal and what’s not when it comes to aquatic parasite populations, the archive of fishy tins, maintained by the Seattle-area Seafood Products Association, was a valuable resource. Natalie Mastick and colleagues combed through the tins with tweezers, counting the numbers of parasitic anisakid worms they found. (Since the salmon was cooked, the worms—though gross—posed no risk to human eaters.) The team found that in their samples of chum and pink salmon, the incidence of parasitic infection increased over the 40 years covered by the salmon archive. The finding might be good news—an increase in the numbers of marine mammals in the area, key hosts for the parasites, could be responsible for the wormy increase. Natalie Mastick, a PhD candidate in the University of Washington’s School of Aquatic and Fishery Sciences, joins guest host Roxanne Khamsi to explain the study.   Medieval Friars’ Farming May Have Caused Tummy Troubles What was life like back in medieval England? You might think that the learned friars who lived in the town of Cambridge—scholars, with access to innovations like latrines and places to wash their hands—might have lived healthier lives than the common folk. But a recent study published in the International Journal of Paleopathology says that, at least when it comes to intestinal parasites, the friars may have been worse off. Dr. Piers Mitchell runs the Cambridge Ancient Parasites Laboratory and is a senior research associate in the McDonald Institute for Archaeological Research. Mitchell and colleagues excavated soil samples from around the pelvises of medieval skeletons in one Cambridge cemetery, then examined the soil microscopically looking for parasite eggs. They found that friars in the cemetery had almost twice the incidence of intestinal parasites as commoners in the town—a fact they speculate could be related to friars using human feces, from the friary latrine, to fertilize the gardens. Mitchell joins guest host Roxanne Khamsi to explain the study.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Attracting Birds To Prime Habitat By Playing Recordings Of Their Calls How do you know a restaurant is good? If the parking lot is full of cars, that’s a pretty good indication. If it’s empty, you probably won’t bother stopping. In this case, the restaurant is a newly restored wetland in Michigan and the customers are rails. The birds migrate at night, so if they don’t hear other rail calls in an area, they’re not likely to stop. Researcher Dustin Brewer is broadcasting recorded rail calls to try to bring the secretive birds to prime habitat—to feed and mate. Rails are declining, mostly due to habitat loss. Experts say if rails are influenced by these recordings, it could help increase the bird’s population.   Collars, Cameras, And Carcasses: Studying Urban Wildlife When you hear the words “urban wildlife,” you might think of rats scampering across a street, pigeons plopped on railings, or crows fighting over a pizza crust. But urban wildlife are so much cooler and more diverse than they get credit for, and scientists have a lot to learn from them. In the blink of an evolutionary eye, urban wildlife have quickly adapted to changing landscapes and learned to take advantage of sprawling urban areas. Guest Roxanne Khamsi speaks with Dr. Chris Schell, an assistant professor studying urban ecology at the University of California, Berkeley. They chat about why urban wildlife is so cool, how scientists can study them, and what we can learn from our scrappy neighbors.   A New Lyme Disease Test In Development May Help Improve Treatment Roughly 476,000 people in the United States are diagnosed and treated for Lyme disease each year, according to Centers for Disease Control and Prevention (CDC) estimates. However, the CDC says that this number is likely an overcount because many patients receive treatment based on symptoms without a positive test result. On top of that, there are some limitations of the diagnostic tests available for Lyme disease. The FDA-approved Lyme disease tests can only determine if a patient has had Lyme disease in the past, not if they currently have an infection. The test cannot determine if antibiotic treatment was successful, or if a positive test result is due to a re-infection. Guest host Roxanne Khamsi talks with Pete Gwynne, a molecular and microbiologist at the Tufts Lyme Disease Initiative, who is working to solve some of these problems by developing a new diagnostic test for Lyme disease.   ‘I Will Not Be Vole Girl’—A Biologist Warms To Rodents The path to becoming a scientist is not unlike the scientific process itself: Filled with dead ends, detours, and bumps along the way. Danielle Lee started asking questions about animal behavior when she was a kid. She originally wanted to become a veterinarian. But after being rejected from veterinary school, she found a fulfilling career as a biologist, doing the type of work she always wanted to do—but never knew was possible for her. Science Friday producer Shoshannah Buxbaum talks with Dr. Danielle Lee, a biologist, outreach scientist, and assistant professor in biology at Southern Illinois University about what keeps her asking questions, what rodents can help us understand about humans, and the importance of increasing diversity in science.

Teen Innovator’s New AI Tool Helps Create Affordable Drugs The U.S. has some of the highest prescription drug prices in the world, which can push patients into bankruptcy over medications they cannot afford. More than three in four American adults think the prices of prescription drugs are unaffordable, prompting the Senate to recently pass a bill intended to help lower prescription drug costs for seniors. One young innovator set out to find his own solution. 17 year-old Rishab Jain developed ICOR, a tool to improve the rapid production of drugs like COVID-19 vaccines. Ira talks with  Jain from Portland, Oregon, about his innovation and vision for the future.   When Trapping Invasive Bugs Is Science Homework The spotted lanternfly, an invasive species, was first introduced to the U.S. in Pennsylvania, around 2014. Since then, it has spread aggressively, and has now been spotted in 11 states. The bug is pretty—adult spotted lanternflies are about an inch long, and feature striking spotted forewings and a flashy red patch on the hindwings. But they are also very hungry, and pose a significant threat to agricultural crops, including grapevines. Many control efforts have focused on either stomping the insects on sight, or on spotting and destroying the egg masses that the lanternflies lay in the fall. However, researchers have been developing trapping techniques for the bugs as well. One, involving a sticky band looped around a tree, is effective—but can also snare other insects and even birds. Experts at the Penn State Extension have come up with a new style of circle trap for lanternflies, based upon an existing trap for pecan weevils. Now, STEM educators at Rutgers University are using that design as the starting point for an engineering design challenge, asking K-12 teachers and students to come up with improvements to the design. Read the rest at sciencefriday.com. Should Kids Get Vaccinated If They’ve Already Had COVID-19? It’s nearing the end of August, which means it’s back-to-school season. There’s a big difference between this school year and last: All children are now eligible for the COVID-19 vaccine. This means the risk of disease will likely be way down, compared to the past two autumns, according to vaccine researcher and pediatrician Paul Offit. But for kids who have already been infected by COVID-19, will the vaccine add meaningful immunity? “My answer to that question is yes,” Dr. Offit tells Ira. “Then you can be sure that they will then develop the kind of immunity that will likely lead to fairly long-lived protection against serious illness.” Ira and Dr. Offit also discuss the risk of monkeypox and polio spreading in schools, and how to best keep our kids safe against infectious disease this fall.   The Countdown Begins For Humanity’s Return To The Moon NASA’s largest and most powerful rocket ever began inching its way to Launch Pad 39B at Kennedy Space Center in Florida on Tuesday night. Over twelve years in the making, the long-delayed, over-budget Space Launch System rocket is finally nearing its first chance for liftoff at the end of this month. The August 29th targeted launch will mark the beginning of the Artemis program—NASA’s series of missions designed to send humans to the Moon and, eventually, Mars. The multi-billion dollar orange rocket now stands taller than the Statue of Liberty, resembling a colossal upside-down carrot. Its maiden uncrewed flight will carry a trio of mannequins equipped with radiation sensor vests in preparation for crewed flights slated for 2024. These future missions will be the first to return people to the Moon since Apollo 17 in 1972. Read the rest at sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Will A Colorado River Drought Dry Up Energy Supplies? This week, the U.S. Bureau of Reclamation, a federal agency that manages water in the Western U.S., started the process of cutting water use allotments along the Colorado River after seven states missed a deadline for coming up with their own reduction plan. The area has been under a long-running drought—and with water in demand for everything from drinking to agriculture to industry, and with the population of the area on the rise, agreements over water use are difficult to come by. The drought has another less obvious effect on the area as well—drops in water allocation could lead to declines in power production in a region that relies on several major hydroelectric facilities. Umair Irfan, staff writer at Vox, joins Ira to talk about the plan for distributing western water and other stories from the week in science—including a possible reprieve for nuclear power plants in Germany and California, a geomagnetic storm sparking an astronomical light show, orders for future supersonic aircraft, and investigations into why thinking hard makes you physically tired.   How Viruses Have Shaped Our World SARS-CoV2. HIV. CMV. HSV-1 and HSV-2. MPX. EBV. HPV. WPV. WNV. The alphabet soup of viruses that infect us may seem long and daunting. But as scientist and author Joseph Osmundson writes in Virology: Essays for the Living, the Dead, and the Small Things In Between, these viruses are vastly dwarfed by the total number of harmless or even beneficial viruses on our planet. “It’s a rounding error larger than zero,” he writes. A single ounce of seawater will contain more than seven billion individual viruses incapable of doing us harm. Osmundson’s book is both COVID-19 quarantine memoir, and reflections of a self-described queer man coming of age after the identification of the human immunodeficiency virus that causes AIDS. In it, he questions the war-like language we ascribe to “fighting” pathogens, explores the non-binary nature of health and illness, and advocates for a world where we are more ready to care for each other. “The problem wasn’t illness,” he writes of HIV’s death toll before the development of effective treatments. “The problem never is. Illness is a fact of life. The problem is our inability to provide care to all.” Osmundson talks to producer Christie Taylor about making new meanings for viruses through biomedicine and public health interventions. Plus, lessons for the monkeypox global public health emergency, and all the viruses to come. Seagrass Oasis In Gulf Of Mexico Signals Good News For Manatees Florida’s offshore marine habitat is in peril. Populations of fish are dwindling in many places, and manatees have been dying in record numbers. The basis for much of this life lies in seagrass just under our boats. We join scientist on a trip into one of the healthiest seagrass meadows in the Gulf of Mexico. Read the rest at sciencefriday.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Some Grasses Can Stop Lead From Spreading In Soil Lead left behind in soil from mining and smelting poses a major health risk to people who live nearby. Researchers in Nebraska and Kansas believe plant life and organic material can limit lead’s spread.In parts of the Midwest where lead mining and smelting lasted for over a century, communities are still dealing with toxic waste left behind by the industry. Lead, a dangerous neurotoxin, persists in the environment, including in water and soil, where it can pose a threat to the health of people living nearby. The risk is especially acute for children, who can unintentionally ingest lead by putting their hands in their mouths and whose brains and bodies are still developing. It can be spread to other areas, like yards and schools, by rainfall, and can also taint aquifers or vegetables in gardens, making them harmful to consume. Now researchers are working to limit the impact of lead in the environment on people, and they believe they’ve found a promising solution: Plant life. Phytostabilization involves moving lead from soil into the roots, stems and leaves of plants to prevent it from spreading and to limit people’s contact with it. “One of the goals of phytostabilization is to take the site with lead and put it in a stable state, so that the risk is reduced, and the issues related to lead in the soil can be managed,” said Larry Erickson, a professor emeritus at Kansas State University and former director of the university’s Center for Hazardous Substance Research. Read the rest on sciencefriday.com.   A High School Student Invented An Affordable Brain-Reading Prosthetic Artificial limb technology has come a long way since the first prosthetic—a big toe made of wood and leather developed in ancient Egypt. Today’s cutting-edge robotic limbs use mind-control and even give users a sense of touch, helping them feel sensations like a warm cup of coffee or a mushy banana. Still, these state-of-the-art prosthetics often involve invasive brain surgeries and can be exorbitantly expensive. Hearing of these issues, one teenager set out to create a solution. Seventeen-year-old Benjamin Choi has developed a non-invasive, affordable prosthetic arm. His Star Wars-inspired technology reads a user’s mind with only two sensors—one on the forehead and the other clipped to the earlobe. And he doesn’t plan on stopping there. He sees his work in artificial intelligence expanding to help ALS patients, wheelchair users, and beyond. Ira speaks with Benjamin Choi from McLean, Virginia about how he developed this arm and what it means to be a young innovator.   New Immunotherapy Shows Promise Far Beyond Cancer CAR T cell therapy, a type of immunotherapy in which a patient’s own immune cells are modified to create a hybrid immune cell that destroys cancer cells, was first developed over a decade ago. Now, researchers are continuing to find success in treating new types of blood cancers with the therapy, and are working on applying the technology to solid state cancers like those of the pancreas and brain. Scientists are also at the early stages of testing CAR T cells to treat autoimmune diseases like multiple sclerosis (MS) and lupus. Ira talks with Dr. Carl June, one of the pioneers of CAR T cell therapy, a professor of immunotherapy and director of the Center for Cellular Immunotherapies at the University of Pennsylvania, based in Philadelphia.   Feeling Hopeless About Climate Change? Try Playing These Video Games Five years ago, Stephanie Barish was tired of the public’s attitude about climate change. “Most people at that time were just so negative about climate,” she said. “It was doom and destruction, and I thought, wow, to make positive change, you have to really look at this from a solutions perspective.” Stephanie is the founder and CEO of Indiecade, an organization that supports indie video game developers and hosts events like the Climate Jam—the goal of which was to change the gloomy public narrative around climate change. So, with the help of organizations like Earth Games, participants around the globe gather every year to make video games about climate change optimism, solutions, and justice. Teams can also consult with subject matter experts, like Dargan Frierson, an associate professor of atmospheric sciences at the University of Washington, and also a judge for the Climate Jam. If teams wonder what climate change would look like on a different planet, they can go to him for answers. “We always look for scientific accuracy,” he said. “I think it’s very important to keep things within the realm of possibility, even when you’re looking at fiction.” Read the rest of the article and check out some of the games at sciencefriday.com.   Analogue Animation: Turning The Pages Of A Flipbook Machine Brooklyn-based artist J.C. Fontanive is a master of the moving image—but in analogue. As an animator, he creates mechanical, perpetual motion ‘flipbooks,’ with help from old clocks and colorful illustrations of flying birds, butterflies, and other scenes from nature. Fontanive joins Ira to talk about the act of invention, the ‘primal’ language of art, and how to create visceral work in a digital age. See the flipbooks in gorgeous action at sciencefriday.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Plan to Cap Insulin Prices May Not Be Helpful 30 million people in the U.S. live with diabetes, and access to insulin can be expensive. More than 1 in 5 people with private insurance pay more than $35 a month for this necessary medication. The U.S. Senate has a plan to cap insulin prices for certain diabetics, but critics say this plan would not help make insulin affordable for a majority of people. Plus, many people have been following the discoveries of the James Webb Space Telescope, or JWST, with baited breath. Astronomers may have found the youngest exoplanet we know of. And a deep space hoax of a chorizo slice fooled the astronomy community. Joining Ira to talk about these stories and other science news of the week is Katherine Wu, staff writer for The Atlantic based in New Haven, Connecticut.   What You Need To Know About Monkeypox Last week, the White House declared the monkeypox outbreak a public health emergency. Currently there are a little over 9,000 confirmed cases in the United States, and just under 30,000 worldwide. Since the end of May, monkeypox has been spreading in countries where it has not been previously reported. The virus is mainly spreading within gay and bisexual men and other men who have sex with men. And because of that there is stigma associated with the outbreak. Ira talks with Rachel Roper, virologist at the Brody Medical School at East Carolina University, and Perry Halkitis, dean of the Rutgers University School of Public Health, to explain the basics of transmission, answer listener questions, and debunk misinformation about the monkeypox outbreak.   Frenemies, Lovers, And The Fate Of The Cosmos: Our Galaxy Tells All Our galaxy, the Milky Way, is 13.6 billion years old, all-knowing, and a little sassy. It has a rich social life of friends, frenemies, and even love interests—all other galaxies in the local group, including the stunning Andromeda. And the Milky Way is a little disappointed that we’ve stopped telling as many stories about it. Or at least, that’s how folklorist and astronomer Dr. Moiya McTier imagines the galaxy’s personality when writing her new book, “The Milky Way: An Autobiography of Our Galaxy.” The book stretches from the beginning of the universe to the birth of our planet, and then on to the eventual theoretical end of the cosmos. Along the way, we learn both the science of how stars form and galaxies collide, and the many stories and myths humans have told about these bodies throughout our relatively brief lives. McTier joins Ira to tell all (on behalf of the Milky Way), and explain the importance of story in scientific knowledge and discovery. Read an excerpt of the book on sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

What’s Inside A Sudden, Second Chance At A Climate Bill Last week, climate activists received a surprise gift from Democratic Senators Chuck Schumer and Joe Manchin. It turns out they had been in secret negotiations to put out a spending package that might tackle some of the same climate mitigation projects as last year’s failed Build Back Better initiative. The $369 billion dollars for climate mitigation in the Inflation Reduction Act covers tax credits for renewable energy, methane leak reduction, and the largest environmental justice investment in history. But will it pass before Congress goes on recess? Ira talks to University of California-Santa Barbara political scientist Leah Stokes, who helped advise Senate Democrats during the bill’s crafting, about what the bill might do, and some of the politics shaping climate action.   Engineering and Infrastructure In A Collapsing Climate Roads buckling. Power grids flickering. Roads washing out and basements flooding. Climate change brings new hazards for both human health and the infrastructure that keeps our communities functioning. So how do we build for the conditions that are coming–and in many ways already here? Arizona State University engineer Mikhail Chester talks to Ira about the physical alterations we’ll need and, perhaps more importantly, the way the process of building must change too. Plus why building things to fail—but with less deadly consequences—may be necessary in an uncertain future.   A Teen Inventor Builds A Fingerprint Scanner for Gender Equity The World Bank estimates that around one billion people worldwide don’t have official proof of identity. Without legal identity verification, opening bank accounts, voting, and even buying a cell phone is challenging or even impossible. This issue disproportionately affects women—around half the women in low-income countries do not have proof of identity, which limits their independence and the resources they are able to access. Looking for a solution, 16-year-old Elizabeth Nyamwange invented Etana—an affordable fingerprint scanner that could provide women with a form of digital identity. Her project to close the gender identification gap earned her first place in HP’s Girls Save the World challenge. Ira speaks with Nyamwange, based in Byron, Illinois, about her innovation.   Remembering Nichelle Nichols, Star Trek’s Pioneering Lieutenant Uhura Actress Nichelle Nichols died this week at the age of 89. She was known to people throughout the galaxy for her role as Lieutenant Nyota Uhura, the communications officer on the Starship Enterprise. Her casting as a Black woman in a highly skilled, technical position on a major television program in 1966 was crucial representation—and helped many viewers see science and technology careers as something within their grasp as well. When Nichols considered leaving Star Trek to return to Broadway, a meeting with “her biggest fan”—the Rev. Dr. Martin Luther King, Jr—helped convince her to stay on to contribute to the civil rights movement. Later, Nichols became an ambassador for NASA, working to help recruit people to the space shuttle program, especially women and minorities. In this remembrance, astronaut Leland Melvin helps tell her story, and Tarika Barrett, CEO of the STEM organization Girls Who Code, talks about the importance of role models and representation. Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

White House Declares Monkeypox Outbreak A Public Health Emergency The Biden administration declared the monkeypox outbreak a public health emergency on Thursday. Earlier in the week the White House appointed Robert Fenton, regional administrator at FEMA to direct the federal government’s response to the monkeypox outbreak, along with a deputy director from the CDC. This comes after criticism from activists and public health experts, who have said that the federal government has been dragging its feet on access to vaccines, testing and treatment for the virus. Ira talks with Tim Revell, deputy United States editor for New Scientist, about the latest monkeypox updates and other top science stories including; new research into the shape of the human brain; how hand gestures can improve zoom calls and a plant that harnesses the power of a raindrop to gulp down insects.   New Steps Toward a Vaccine For Cancer Vaccines have long been used to prevent infection from viruses. But now, scientists are working on a different kind of vaccine—one that targets cancer. Dr. Kai Wucherpfennig is working on a cancer vaccine that would target tumors that tend to spread quickly and are resistant to treatment, like melanoma and triple negative breast cancer. This type of vaccine is intended to be used after a patient has had their tumor removed. The goal is to prevent the spread of cancer cells to other parts of the body, which is called metastasis. So far, this type of cancer vaccine is effective in animals, and the results were recently published in the journal Nature. Ira talks with Dr. Kai Wucherpfennig, chair of cancer immunology and virology at the Dana-Farber Cancer Institute and professor of neurology at Harvard Medical School, about his latest research into cancer vaccines, and how recent advances in understanding the immune system has jump-started research into new types of cancer immunotherapies.   Restoring A Sensitive Ecosystem, One Wildflower At A Time The New England blazing star is more than just a pretty blossom: it’s an integral part of a globally-rare ecosystem called a “sandplain grassland.” Just like the name suggests, sandplain grasslands have sandy soil with tall grass, no trees and an exceptionally high number of rare plant and animal species. That includes plants like the New England blazing star, an important food source for various grassland insects. Today volunteers would plant 1,000 of them to help restore Bamford Preserve, a 60-acre parcel of sandplain grassland on Martha’s Vineyard. As climate change threatens both human health and the natural world, experts say that protecting biodiversity hotspots like this one will offer the most bang-for-the-buck — protecting threatened species while offering other ecosystem benefits, like open space and flood protection. Read the full story on sciencefriday.com.   A Fish By Any Other Name: Inside The Effort To Bring ‘Copi’ To Dinner People who live near freshwater rivers or lakes are likely familiar with Asian Carp. The fish are not native to the U.S., but over the last few decades their populations have exploded in waterways like the Mississippi River Basin and the Illinois River. Over the last few years, there’s been a major PR campaign to move away from the name Asian Carp, in favor of a new name: “Copi.” The reason is two-fold: First, it joins a general trend of moving species’ names away from nationalistic associations, considering anti-Asian hate crimes during the COVID-19 pandemic. The other goal is to make the fish sound more delicious—creating a market that would incentivize fishing the Copi, hopefully reducing their populations. Joining Ira to talk about this is Jim Garvey, director of fisheries, aquaculture and aquatic sciences at Southern Illinois University in Carbondale, Illinois.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Decades Of Alzheimer’s Research Could Be Based On Fraudulent Data Alzheimer’s disease is a devastating brain disorder that slowly affects memory and thinking skills. For many people who worry that loved ones may succumb to this disorder, the possibility of research in the field of Alzheimer’s is a balm of hope. However, a massive report from Science Magazine highlights a startling discovery: that decades of Alzheimer’s research are likely based on faulty data. Alzheimer's researchers are grappling with the revelation, and what it means for future research of the disease. In other science news of the week, scientists have identified pits on the moon that are a comfortable temperature: averaging 63 degrees Fahrenheit. But don’t plan that space vacation yet—research finds that air pollution from space-bound rockets has an exorbitantly high effect on global warming—much more than traditional airplane travel. Joining guest host Sophie Bushwick to discuss these stories is Maggie Koerth, science writer for FiveThirtyEight based in Minneapolis, Minnesota. They also discuss how childhood vaccinations have dropped dramatically during the COVID pandemic, and why this is likely tied to New York’s first Polio case in nearly a decade.    Higher Temperatures Are Bad For The Body Across the globe, hundreds of millions of people have been dealing with extreme heat. The three most populated countries in the world—China, India and the United States—have been gripped by heat waves throughout the summer. Extreme heat isn’t just uncomfortable: it can be deadly, putting strain on the organs and systems that keep us in equilibrium. Heat is especially dangerous for vulnerable populations such as the elderly, pregnant people, and those without access to air conditioning. In the United States, heat is responsible for more deaths than any other type of weather event. Joining guest host Sophie Bushwick to talk about what high temperatures do to the body, and how we can protect our health and safety in a heat wave is Chris Uejio, associate professor of public health at Florida State University in Tallahassee, Florida.    Protecting Piping Plovers Isn’t A Walk On The Beach July is nearly through, and so is the piping plover’s nesting season. It's make-or-break time for these small, endangered shorebirds. There are roughly 8,000 piping plovers in the entire world. To put that in context, birders often get really excited to see a rare bird like a snowy owl. But there are about 28,000 snowy owls in the world, three times the number of piping plovers.  Since piping plovers make their nests along the water and out in the open, their chicks are very vulnerable to being gobbled up by predators. And a major reason for their decline in numbers is human development along the beaches, lakes, and rivers where piping plovers lay their eggs.  SciFri radio producer Shoshannah Buxbaum went out to Fort Tilden in Queens, NY to report on a volunteer-run conservation effort along the New York City coastline. And later in the segment, Michigan radio reporter Lester Graham talks with guest host Sophie Bushwick about the unique challenges and triumphs of the piping plovers who nest along the Great Lakes.   This Glove Takes Inspiration From An Octopus’ Arm Octopuses have more than 2,000 suckers on eight arms, and each one is controlled individually, making these critters incredibly dextrous. So when a team of researchers wondered how to design a glove that could hold onto slippery objects underwater, they turned to octopuses for inspiration. Ultimately, they created something they’re calling an octa-glove. Guest host Sophie Bushwick talks with Michael Bartlett, an assistant professor of mechanical engineering at Virginia Tech, about his team’s engineering, and what they learned from the ambidextrous creatures.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

For The Love Of Volcanoes A new documentary, “Fire of Love,” tells the story of French volcanologists Katia and Maurice Krafft. The married couple spent two decades chasing volcanic eruptions across the world. Katia was a geochemist and Maurice a geologist. Together, they studied the science of volcanoes and produced films showcasing their power. That is, until their deaths in 1991, when they were killed by the very thing they loved so much. Guest host Sophie Bushwick talks with Sara Dosa, director of the documentary “Fire of Love,” which is in theaters nationwide, and will be available on Disney+ later this year.   A Blind Researcher Making A More Accessible World Joshua Miele has spent his career trying to make the world more accessible for blind and visually impaired people. As a blind person, his lived experiences have shaped the way he thinks about technology and how it can be used to better serve disabled people. He’s invented products like YouDescribe—a tool that adds audio description to YouTube videos—and Tactile Maps Automated Production, a software that creates tactile maps for people to feel. Although adaptive technologies try to help disabled people access information, it isn’t always driven by the input and needs of disabled people. There needs to be more disabled designers, engineers, and researchers spearheading this work, Miele says. Now, he works as a principal accessibility researcher at Amazon’s Lab126, where he helps make products like the Echo and Fire tablets more accessible. Guest host Sophie Bushwick speaks with Miele about how his own experiences shape his work, and the importance of disability inclusion in designing new technologies.   What You Might Not Have Known About The Vagina When it comes to researching human genitals and the organs called, in simple terms, “reproductive,” the penis has long been the star of the show. “It doesn’t help to only look at one or the other. Only by zooming out can we see them in their full range of variation and possibility,” writes science journalist Rachel E. Gross in her book, Vagina Obscura: An Anatomical Voyage, which tells the long history of neglected research into the vagina and its companion organs—the uterus, clitoris, Fallopian tubes, and ovaries. The book takes readers through myths, mysteries, and the legacy of shame around sexuality. It also introduces researchers who are finally making breakthroughs in our understanding of fertility, pleasure, and even immune health that’s been linked to these organs. The book interviews doctors who are using that knowledge to make life better for everyone—including cancer patients and older people going through menopause, transgender women who want their own vaginas, people with endometriosis, and those, including intersex people, looking to regain pleasure and agency after childhood genital cutting. Producer Christie Taylor interviews Gross about our growing understanding of clitoral anatomy, the long-misunderstood egg cell, the uterus’ ability to heal, and more. Plus, why these organs are important for whole-body health, and why everyone needs to understand them better. To read an excerpt from Vagina Obscura: An Anatomical Voyage by Rachel E. Gross, visit sciencefriday.com.   Transcripts for each segment will be available a week after the show airs at sciencefriday.com.  

When Times Get Tough, These Toads Make Hybrid Babies Scientists have long thought that when two animals from two different species mate, it’s a colossal error and the end of the road for the mismatched couple. It’s called interspecies breeding, and many hybrid offspring often end up sterile, such as zonkeys —a cross between a zebra and donkey. Or they can develop serious health problems, like ligers and tigons. One biologist even went as far to call interspecies breeding “the grossest blunder in sexual preference.” But is breeding across species lines always a dead end? One critter —the plains spadefoot toad—shows us that maybe it isn’t. In fact, it can give them a leg up in survival. Katherine Wu, staff writer for The Atlantic, talks with Ira about the complicated sex lives of the female plains spadefoot toads, the trade-offs females make when choosing a mate, and why hybridizing critters may not be such a biological abomination after all.     Major Semiconductor Support Bill Passes First Hurdle Earlier this week, the Senate voted in favor of the Creating Helpful Incentives to Produce Semiconductors (CHIPS) for America Act. If passed, the bill would provide more than $50 billion to companies that will build semiconductor factories here in the United States. Semiconductors are versatile materials—such as silicon—often used in electronics and in microchips. But the bulk of semiconductors, known as “chips,” are produced in other countries, mostly Taiwan. If the CHIPS Act is passed, the government will fund tech companies to build factories at home instead. Although the bill still has to go through the House and be signed by President Biden, this Senate vote is still a monumental moment in the tech world. Jesús del Alamo, a professor of electrical engineering at MIT, joins Ira to talk about why this bill is such a big deal, and what’s at stake.   Drought Could Raise Toxic Dust Around Utah’s Great Salt Lake Utah’s Great Salt Lake holds a unique ecological niche as the western hemisphere’s largest saltwater lake. The body of water is three to five times saltier than the ocean, with salinity ranging between 12 and 28 percent. According to the Great Salt Lake Institute, millions of birds from more than 250 species rely on the lake yearly, alongside a diverse variety of plants and animals. Like many bodies of water in the U.S., climate change is affecting the status quo in the Great Salt Lake. The water is drying up at an alarming rate, reaching its lowest level in recorded history this month. Now, researchers warn that toxic dust could increase as water levels continue to drop. Joining Ira to discuss the Great Salt Lake’s ecosystem and future is Bonnie Baxter, director of the Great Salt Lake Institute and biology professor at Westminster College in Salt Lake City, Utah.   A Flaw in Human Judgment: How Making Decisions Isn’t As Objective As You Think If two people are presented with the same set of facts, they will often draw different conclusions. For example, judges often dole out different sentences for the same case, which can lead to an unjust system. This unwanted variability in judgments in which we expect uniformity is what psychologist Daniel Kahneman calls “noise.” The importance of thoughtful decision-making has come in stark relief during the pandemic and in the events leading up to the January 6th insurrection. Ira talks with Nobel Prize-winning psychologist Daniel Kahneman about the role of ‘noise’ in human judgment, his long career studying cognitive biases, and how systematic decision-making can result in fewer errors. Kahneman is the co-author of “Noise: A Flaw in Human Judgment,” along with Oliver Sibony and Cass R. Sunstein, now available in paperback.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Earth Faces A Global Heat Wave Temperatures are higher than normal for much of the planet this week—and while the heat wave in Europe has had much of the attention, over 100 million Americans in 28 states were under extreme heat advisories this week. Yasmin Tayag, a freelance science editor and writer based in New York, joins Ira to talk about the global heat wave and other stories from the week in science—including the president’s COVID diagnosis, an uptick in drug-resistant infections, and the question of whether previously uninfected people are “sitting ducks” when it comes to new COVID variants. They’ll also tackle some lighter topics, including new studies of how an elephant’s trunk works, and the genetics of how penguins came to prefer colder climates. Genetics Suggest Indigenous People Arrived In Americas Earlier Than Some Thought For years, grade school textbooks have told the story of how the Americas were populated by people crossing a land bridge from Asia and migrating in the safe havens between glaciers. In this version of history, its inhabitants arrived 13,000 years ago. But that story needs an update, thanks to both new archaeological evidence, and the increasingly robust tools of genetic analysis—ancient genomes extracted from millennia-old human remains suggest a much longer history of people in the Americas, perhaps by thousands more years, and aligns with the oral histories of Native Americans and other Indigenous peoples. The genetic evidence also brings up new mysteries, including evidence of some groups of ancient peoples with no direct descendants today. Producer Christie Taylor talks to University of Kansas anthropological geneticist Jennifer Raff, the author of Origin: A Genetic History of the Americas, about the growing evidence for the need to revise the history of the First Peoples. Plus, why researchers seeking to tell that story need to work directly with contemporary tribes to ensure that exploitative scientific practices of the past are not repeated. Can Genetic Modification Help Plants Survive Climate Change? Temperatures around the world are reaching all-time highs as major heat waves cause extreme weather and climate events. Earlier this year, temperatures in India and Pakistan soared to 120 degrees Fahrenheit, followed by months of unrelenting, unseasonably hot weather. A brutal heat wave is now moving across Europe, fueling devastating wildfires, and producing Britain’s highest temperature on record. Propelled by climate change, future heat waves promise to increase in frequency and intensity, posing a dangerous threat to human health. But people aren’t the only ones at risk. Many plants—including essential food crops—struggle to survive as temperatures rise. When conditions heat up, a plant’s immune system can shut down, eliminating its defense mechanism. With key agricultural regions already experiencing record highs, global food supplies face potentially devastating consequences. Ira talks to Sheng-Yang He about his research published in Nature last month that offers a potential solution—using gene editing to strengthen a plant’s defenses against increased temperatures.

Stunning JWST Images Show New Details Of The Universe After many delays, a Christmas launch, and a months-long period of travel and testing, the first science images from the James Webb Space Telescope (JWST) were unveiled this week. The JWST has a huge multi-segmented mirror that allows it to gather faint light—and it sees in the infrared, allowing it to see through dust and gas and reveal details about the universe that were previously unseeable. On Monday, a short ceremony at the White House unveiled the first image, a “deep field” image taken by staring for hours at a piece of sky the size of a grain of sand held at arm’s length. The image shows thousands of galaxies, including ones so distant that their images have been warped by the gravitational lensing effect of massive objects in between. On Tuesday, four more images were unveiled, including a spectrograph describing the atmosphere of a distant exoplanet, a cluster of galaxies known as Stephan’s Quintet, the dying stars of the Southern Ring Nebula, and the star formation region known as the Carina Nebula. Amber Straughn, an astrophysicist and deputy project scientist for James Webb Space Telescope Science Communications joins Ira to talk about the images, and what lies ahead now that the JWST has entered its operational phase. To compare the JWST images side-by-side with the Hubble images of the same subjects, visit www.sciencefriday.com.   A Busy Time For Space Launches While much of the astronomical world was gazing at the first science images from the James Webb Space Telescope, there’s been a lot of other space news to discuss—from launches and testing associated with the Artemis I mission to the moon to new data from the Martian rovers. There’s also big news with commercial space flights, and even plans from some commercial vendors to work on a replacement for the aging International Space Station. Ira talks with Brendan Byrne, space reporter from WMFE and host of podcast “Are We There Yet?”, along with planetary scientist Matthew Siegler, about recent solar system news, and space events to keep an eye on in the months ahead.   U.S. Attempts To Catch Up With Rising Monkeypox Cases The outbreak of the orthopox virus currently known as monkeypox continues to spread in hotspots around the United States, with symptoms ranging from fever to intensely painful, contagious lesions. From five cases in late May, the known number has grown to at least 1,053 as of Wednesday afternoon, with epicenters including New York City, the Bay Area, Chicago, Washington D.C., and other major cities. But the current numbers most certainly are an undercount, as people seeking diagnosis report difficulty accessing tests. Meanwhile, the rollout of the existing monkeypox vaccine, Jynneos, remains slow and inadequate for demand, with more than a million doses still stuck in a stockpile in Denmark. So far, the virus, which is known to spread through respiratory droplets and skin-to-skin contact, has been detected predominantly in men who have sex with men. New York public health researcher Keletso Makofane and San Francisco AIDS Foundation CEO Tyler TerMeer speak to the frustration of LGBTQ men and nonbinary people in the most at-risk networks, as resources and response lag. And Ira talks to UCLA monkeypox researcher Anne Rimoin, who twelve years ago published a warning that cases were rising in African countries as immunity to the related smallpox virus waned. He also speaks with Brown University epidemiologist Jennifer Nuzzo about the outlook for global and domestic containment, and the pressing need for more data.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.          

1,000 Acres Of Ancestral Land Returned To Onondaga Nation Earlier this month, more than 1,000 acres of land in central New York were returned to the Onondaga Nation, the original steward of the land. This decision stems from a 2018 settlement between the Natural Resource Trustees and Honeywell International, Inc., which previously owned the land and polluted it with dangerous toxins, such as mercury and heavy metals. Under this agreement, Honeywell will fund and implement 18 restoration projects, and the Onondaga Nation will lead the restoration and preservation of its land. “It is with great joy that the Onondaga Nation welcomes the return of the first substantial acreage of its ancestral homelands. The Nation can now renew its stewardship obligations to restore these lands and waters and to preserve them for the future generations yet to come,” Onondaga Nation Chief Tadodaho Sid Hill said in a statement. “The Nation hopes that this cooperative, government-to-government effort will be another step in healing between themselves and all others who live in this region which has been the homeland of the Onondaga Nation since the dawn of time.” Roxanne Khamsi, science writer based in Montreal, Canada, joins Ira to talk about this “landback victory,” which marks one of the largest returns of land to an Indigenous nation in U.S. history. Roxanne and Ira also discuss other science news of the week, including why pulse oximeters aren’t inclusive of people with dark skin, how some mosquito-borne viruses trick their hosts into attracting more mosquitoes, the discovery of a one-of-a-kind carnivorous plant that hides its traps underground, why some flowers act as cesspools for bumblebees, and how relocating sea turtle eggs can lead to health issues for newborn turtles.   A New COVID Wave Is Here, Raising The Risk Of Reinfections Coronavirus is surging again in the United States. The latest sub-variants BA.4 and BA.5 are now dominant. Right now, things are feeling a little different: People who were recently sick are getting reinfected. And those who have so far evaded the virus are getting it for the first time. A new booster based on the new omicron sub-variants is slated to roll out in the fall. Meanwhile, the Biden administration is pushing to allow people under 50 to get a second dose of the currently available booster. Ira is joined by Katelyn Jetelina, adjunct professor at UTHealth School of Public Health and author of the newsletter, Your Local Epidemiologist and Jessica Malaty Rivera, epidemiology fellow at Boston Children’s Hospital and senior advisor at the Pandemic Prevention Institute to debunk the latest pandemic misinformation and update us on the current state of the virus.   Texas Heatwave Puts Strain on Electric Grid Texans woke up Monday morning to a familiar fear, worried that the state’s electric grid may not provide enough energy to see them through the day. While the anxiety is understandable, a shortfall of energy reserves on the system does not automatically mean the grid operator will order rolling blackouts. If you, like millions of others, are wondering about the likelihood of blackouts, here’s a review of what happens if the state falls short of power. Read the rest at sciencefriday.com.   Gene Editing Is Easy—And A Crime—In This New Techno Thriller Book Logan Ramsay wakes up one morning and feels different. It’s not allergies, and it’s not the flu. If anything, he feels sharper: He needs less sleep, and can multitask and read at lightning speed. What’s going on with him? It turns out his genome has been hacked: tiny changes were made to his DNA to make him a bit of a superhuman. But at what cost? This is the plot of Upgrade, Science Friday’s next book club pick, and a new science fiction novel that mixes real science concepts—notably CRISPR—with a fast-paced plot. It’s written by author Blake Crouch, who was inspired to write the book in part because of a Science Friday appearance in 2016. It’s also our current book club pick. Blake joins Ira to discuss a future where gene editing is used to hack drugs, people, and animals, and how far off we are from the book’s climate disaster surveillance state.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

A Debate Over How The Universe Began Even though it’s commonly accepted today, the Big Bang theory was not always the universally accepted scientific explanation for how our universe began. In fact, the term ‘Big Bang’ was coined by a prominent physicist in 1949 to mock the idea. In the middle of the 20th century, researchers in the field of cosmology had two warring theories. The one we would come to call the Big Bang suggested the universe expanded rapidly from a primordial, hot, and ultra-dense cosmos. Conversely, the so-called ‘Steady State’ theory held that the universe, at any given point in time, looked roughly the same. The story of how the Big Bang became the accepted theory of physics is also a story of two men. One, Fred Hoyle, was a steady state supporter who thought the universe would last forever. Meanwhile, George Gamow, the major public advocate of the Big Bang, begged to differ. They debated in the pages of Scientific American and in competing popular books, as both dedicated scientists and earnest popularizers of their field. And while Gamow ended up winning the debate, for the most part, the two men managed to come together in one way: They accidentally explained the origins of every element of matter by being part right, and part wrong. The truth, it turned out, would lie in the middle. Ira talks to physicist and science historian Paul Halpern about this story, detailed in his book, Flashes of Creation: George Gamow, Fred Hoyle, and the Great Big Bang Debate.   The World According To Sound: Listening To Black Holes Collide In this piece, you can actually listen to gravitational waves, the ripples in spacetime made by the tremendous mass of colliding black holes. It is possible to hear them, because their wavelengths have been shifted all the way into the human range of hearing by MIT professor Scott Hughes. Drawn together by their immense gravity, nearby black holes will swirl faster and faster until they are finally absorbed completely into one another. When the pitch rises, it means the force of gravity is increasing as the black holes collide. Not all black holes come together at the same rate or release the same amount of gravitational waves, so each combining pair has its own particular sonic signature. Some black holes collide quickly. Others slowly merge. Some produce relatively high pitches, because of the intensity of the gravitational waves, while others have a low bass rumbling. Some even make the sound of a wobbling top as the two black holes swirl around each other, before eventually meeting and becoming totally absorbed into one another.   A Maggot Revolution In Modern Medicine In a bloody battle during World War I, two wounded soldiers were stranded on the battlefield in France, hidden and overlooked under some brush. Suffering femur fractures and flesh wounds around their scrotum and abdomen, they lay abandoned without water, food, or shelter for a whole week. At the time, outcomes for these kinds of wounds were poor: Patients with compound femur fractures had a 75 to 80% mortality rate. By the time the soldiers were rescued and brought to a hospital base, orthopedic surgeon William Baer expected their wounds to be festering, and their conditions fatal. But much to his surprise, neither showed any signs of fever, septicaemia, or blood poisoning.   Read more at sciencefriday.com.   Trying To Determine Forest Health? Look To The Lichens There aren’t very many old-growth forest left in North America. And while it would be wonderful to be able to preserve all of them, resources to protect those forest patches are also in limited supply. So if you’re forced to choose between two areas of old-growth forest, how do you prioritize which of these islands of biodiversity to focus on? One of the standard ways to identify significant patches of forest is to look at the size of the trees. But new work published this week in the journal Frontiers in Ecology and the Environment suggests that examining the lichens in a forest plot may give a better picture of the ecological health of an area. Because lichens feed from the air flowing over them, they’re quite sensitive to changes in moisture, nutrients, and pollution, and need long, continuous periods undisturbed. Troy McMullin, a research scientist in lichenology at the Canadian Museum of Nature in Ottawa, Ontario, joins Ira to talk about the stories lichens can tell about the forest ecosystem.   Transcripts are available on sciencefriday.com.

We Need To Talk About Bird Poop Seabird poop—sometimes called guano—was the “white gold” of fertilizers for humans for millennia. Rich in nitrogen and phosphorus from birds’ fish-based diets, the substance shaped trade routes and powered economies until chemical fertilizers replaced it. But while people may no longer find bird poop profitable, these same poop deposits—often found on islands or coasts where the birds nest and rear their young—may also be nurturing ecosystems that would be left high and dry if the birds were to disappear. As seabird populations quickly decline, that’s becoming an increasing risk. Australian researchers Megan Grant and Jennifer Lavers talk to Ira about the under-appreciated role of bird guano in ecosystems, and why scientists should be looking more closely at the poop patterns of endangered seabirds.     Sweating Is Our Biological Superpower Sweat may feel like a constant summer companion, whether or not you exercise frequently. Being damp can feel uncomfortable, but the smells that follow—thanks to the lives and deaths of sweat-munching bacteria—are often socially stigmatized as well. (Deodorant itself is actually a very recent invention!) But sweat isn’t just a cosmetic embarrassment: It’s crucial to keeping us cool, as the evaporating liquid pulls heat energy from our bodies. If you look at animals that don’t sweat, many have evolved alternate adaptations like peeing or even pooping on body parts to achieve that vital evaporative effect. People who are born unable to sweat run a constant risk of heatstroke. Ira talks to Sarah Everts, author of the new book, The Joy Of Sweat, about what makes sweat useful, the cool chemistry of this bodily fluid, and why it’s our evolutionary superpower.   From Zero To 100 Butts: The Wild World Of Invertebrate Behinds Recently, the staff of Science Friday came across a tweet that caught our attention, sent out by researcher Dr. Maureen Berg. Turns out, it was a call to source comic ideas for Invertebrate Butt Week, a celebration of—you guessed it—the butts of invertebrates. “Invertebrates really get the short end of the stick,” says Rosemary Mosco, the creator of the comic series Bird And Moon and #InverteButtWeek organizer. “People are not as excited about them as, say, a majestic whale or a beautiful bird. And I love my birds, but [invertebrates have] such an incredible diversity. So, butts are sort of a cheeky way to access some of that amazing diversity and celebrate it.” Rosemary and other scientists and illustrators teamed up to create #InverteButtWeek, a celebration of the behinds of the backbone-less. “It’s a chance for some people who do science communication to do the silliest thing that they can possibly think of,” says Dr. Ainsley Seago, curator of invertebrate zoology at the Carnegie Museum of Natural History.   Science Friday’s D Peterschmidt talks to the organizers of #InverteButtWeek about how it came together, their favorite invertebrate butt facts (like how sea cucumbers have anal teeth), and how you can participate in the celebration.   Transcripts are available on sciencefriday.com.      

How Will Doctors Train For A Post-Roe World? It’s been one week since Roe v Wade was overturned by the Supreme Court. Many people are still wrapping their heads around what this overturn means for their states— and for their lives. For physicians and medical professionals, there’s another level of fear and concern about what practicing in a world without Roe v. Wade will mean. Questions are circulating about how training for OB/GYN’s may change, or if abortion care will stop being taught in medical school in states that do not allow the practice. For years, the American Congress of Obstetricians and Gynecologists has warned that a shortage of gynecologists will persist, and many in the industry fear the overturn will exacerbate this issue.  Joining Ira to talk about how the Roe overturn could impact training of medical professionals is Dr. Maria Isabel Rodriguez, associate professor of obstetrics and gynecology at Oregon Health and Science University in Portland, Oregon.   Why Are Female Athletes At A Higher Risk Of ACL Injuries? During 2021’s NCAA March Madness tournament, photos and videos from inside the athletes’ weight rooms went viral. The images showed the difference between what was available to the men’s and women’s teams.  The men’s weight room was chock full of fitness training devices. For the female athletes, the only weights were six pairs of dumbbells. This was just one example of a harmful stereotype that has persisted about women in sports: strength training is for men, not for women. This kind of thinking is not only wrong, but can have serious consequences. Research shows female athletes are more prone to certain injuries, most strikingly ACL injuries. Women and girls are up to six times as likely to get an ACL injury compared to boys and men. Joanne Parsons, physical therapist and associate professor at the University of Manitoba, says, “A high school girl who plays basketball or soccer for one season, so let’s say three to four months-ish, will have a 1% chance of rupturing their ACL.” Parsons and her colleague Stephanie Coen, health geographer and associate professor at the University of Nottingham, UK, join Ira to talk about how the way athletic training works now puts women and girls at a disadvantage, and what can be done to better protect athletes. Watch the live call-in at sciencefriday.com.   The Best Science Books To Read This Summer, 2022 Edition Whether you’re on the beach this summer, taking a staycation, or whiling away too many hours spent delayed in airports, you’ll want something to read. Ira and guest authors Riley Black and Deb Blum are here for you, with recommendations for the best books to soak in during the season of escapism.  The full list of book recommendations can be found at sciencefriday.com.   Transcripts for each segment will be available a week after the show at sciencefriday.com.  

Supreme Court Limits EPA’s Greenhouse Gas Regulating Ability This week, in its final round of opinions for the term, the U.S. Supreme Court ruled that Congress had not explicitly given the Environmental Protection Agency the power to regulate carbon dioxide emissions from power plants under the terms of the Clean Air Act.  “Capping carbon dioxide emissions at a level that will force a nationwide transition away from the use of coal to generate electricity may be a sensible ‘solution to the crisis of the day.’ But it is not plausible that Congress gave EPA the authority to adopt on its own such a regulatory scheme in Section 111(d). A decision of such magnitude and consequence rests with Congress itself, or an agency acting pursuant to a clear delegation from that representative body,” wrote Chief Justice Roberts in the majority opinion in the case, West Virginia v. EPA.   The ruling could hinder efforts globally to combat climate change, and could also affect regulations issued by other federal agencies dealing with "major questions" that would dramatically affect the economy. Timothy Revell, deputy U.S. Editor at New Scientist, joins Ira to talk about the decision and other stories from the week in science, including new studies of the canine evolutionary tree, a look back at 10 years of the CRISPR gene-editing technique, the launch of the CAPSTONE mission, and what our nose can tell us about potential relationships.   The Scientist Rebellion: “We’re Not Exaggerating” About The Climate Crisis Earlier this year, more than 1,000 scientists in 26 countries risked arrest during protests against climate change inaction. In Washington D.C., Rose Abramoff and other demonstrators chained themselves to the White House fence before being arrested. Across the country, Peter Kalmus chained himself to the doors of a JPMorgan Chase & Co. Bank in Los Angeles and gave an impassioned speech: “The scientists of the world are being ignored. And it’s got to stop. We’re going to lose everything. And we’re not joking. We’re not lying. We’re not exaggerating.” Just recently, the Supreme Court recently cut the Environmental Protection Agency’s power (EPA) to regulate carbon emissions, a major step back in the climate movement. Abramoff, a global change ecologist based in Knoxville, Tennessee, and Kalmus, a climate scientist at NASA's Jet Propulsion Lab based in Los Angeles, California, are members of an international group of scientists called Scientist Rebellion, who committed to sounding the alarms about the climate crisis. They join Ira to talk about the state of the climate movement, what it’s like to be a climate activist in the United States, and the power of disruption.   Drought In Western Kansas Exacerbates Global Wheat Shortage Russia's war in Ukraine has disrupted global food supplies, driving up demand and prices for wheat. But after months of drought, many western Kansas farmers won’t have a crop to sell. This time of year, the wheat growing in this part of western Kansas should be thigh-high and lush green.But as a months-long drought continues to parch the region, many fields tell a different story. “There’s nothing out there. It’s dead,” farmer Vance Ehmke said, surveying a wheat field near his land in Lane County. “It’s just ankle-high straw.” Across western Kansas, many fields planted with wheat months ago now look like barren wastelands. The gaping spaces between rows of brown, shriveled plants reveal hardened dirt that’s scarred with deep cracks from baking in the sun. Of all the years for drought to hit western Kansas wheat farmers, it couldn’t have come at a worse time. Even with wheat selling for near-record-high prices as the war in Ukraine disrupts the world’s food supplies, a lot of farmers in western Kansas won’t have any to sell. And those who made it through the drought with enough crop to harvest will likely end up with far fewer bushels than they had last year, a downturn that limits the state’s ability to help ease the global food crisis. Read the rest at sciencefriday.com.   See Science In Motion At “Twitch, Pop, Bloom” It’s not unusual for people to crowd into a theater to see a big blockbuster about science. But when’s the last time you saw people clamoring for seats for an educational film made by scientists? The answer is likely never. But this was not unusual in the early 1900s, when film was an up-and-coming medium and science was capturing the public’s imagination. This summer, the Museum of the Moving Image (MOMI) in Queens, New York, is highlighting science education films of the past in the new exhibit “Twitch, Pop, Bloom: Science in Action.” SciFri producer Kathleen Davis speaks to Sonia Epstein, MOMI’s associate curator of science and film, about how these early videos and research went hand-in-hand at the dawn of cinema, and the historical significance of some of the videos in the exhibit.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

What Does HIPAA Actually Do? HIPAA, the Health Insurance Portability and Accountability Act, is name dropped a lot, but frequently misunderstood. Many are surprised to find that the “P” stands for portability, not privacy.  Misunderstandings about what’s protected under the law go way deeper than its name. The law outlines protections only for health information shared between patients and health care providers. This means that any personal health data shared with someone who is not specifically mentioned in the law is not covered.  If a period tracking app shares personal health information with Facebook, that’s not a violation of HIPAA. Neither is asking for someone’s vaccination status.  Guest host Maddie Sofia talks with Tara Sklar, professor of health law and director of the Health Law & Policy Program at the University of Arizona, to explain what’s actually covered under HIPAA.   “Research By Us And For Us”: How Medical Research Can Better Serve Trans Communities Trans medical care isn’t new or experimental, and study after study has shown that transition-related procedures—such as hormone therapies and surgeries—are incredibly safe and effective. But most long-term studies on trans health focus on the first few years after transitioning, leaving unanswered questions about the years after. Similar to members of other marginalized groups, trans people have long been treated like “case studies,” rather than potential experts when it comes to scientific research. So while researchers have studied trans bodies for decades, they haven’t always asked trans people what they need to know about their own bodies, such as: If I’m pursuing medical transition, how will my bone density change after years of taking estrogen? If I take testosterone, will I also need to get a hysterectomy? How will my hormonal and surgical options affect my fertility?  Now, a new wave of medical research—led by trans medical experts themselves—is trying to fill in those blanks and address the needs of trans communities. Guest host Maddie Sofia speaks with Dr. Asa Radix, the senior director of research and education at Callen-Lorde Community Health Center, and Dallas Ducar, nurse practitioner and founding CEO of Transhealth Northampton. They talk about the state of research on trans health, and how studies can better address the needs of the trans and gender diverse communities.   Food Pantry Venison May Contain Lead Iowa requires warning labels about the possible presence of lead in shot-harvested venison. Kansas, Missouri and Nebraska do not. A walk-in freezer about two stories high sits in one corner of a warehouse owned by a food bank called Hawkeye Area Community Action Program Inc. in Hiawatha, Iowa. Chris Ackman, the food bank’s communication manager, points to the shelving racks where any donated venison the organization receives is typically stored. Known as the Help Us Stop Hunger, or HUSH, program, the venison is donated by hunters from around the state, and Ackman says the two-pound tubes of ground meat go pretty quickly, lasting only a few months. “It’s a pretty critical program, I think, because there are a lot of hunters in Iowa,” he said. “And, it’s well enjoyed by a lot of families as well.” Similar programs around the country have been applauded as a way for hunters to do something they enjoy while also helping feed those in need. Iowa hunters donate around 3,500 deer a year through the program. From the hunters, the deer goes to a meat locker, where it’s ground, packaged and shipped off to food pantries around the state. But before it hits the shelves, Iowa officials require a warning label on the venison package. The label reads: “Lead fragments may be found in processed venison. Children under 6 years and pregnant women are at the greatest risk from lead.” Then, in bold type, the label notes: “Iowa has not found cases of lead poisoning from lead in venison,” along with a number to call for more information. Iowa stands out among Midwestern states in requiring a label warning about the potential hazard of lead ammunition and the fragments it can leave behind in shot-harvested game meat like venison. Donated venison in Kansas, Missouri and Nebraska come with no similar warning label. Read more at sciencefriday.com. Museum Exhibit Celebrates Queerness In Science Last year, the California Academy of Sciences debuted “New Science: The Academy Exhibit,” which celebrates 23 incredible LGBTQIA+ scientists. The folks in this exhibit are challenging the exclusionary practices that are all too common in scientific spaces, with the aim of creating a more inclusive and welcoming environment. It is a celebration of queerness in science. Guest host Maddie Sofia talks with the curator of this exhibit, Lauren Esposito, who is a curator of arachnology at the California Academy of Sciences and founder of 500 Queer Scientists, based in San Francisco. They discuss the exhibit, the importance of LGBTQIA+ representation in STEM, and, of course, arachnids. The exhibit is free and open to the public at the California Academy of Sciences, and it is also available online.   Transcripts for each segment will be available the week after the show airs at sciencefriday.com.      

U.S. Supreme Court Overturns Roe V. Wade The U.S. Supreme Court decided Friday to overturn Roe v Wade. While there have been rumblings that this decision was going to happen, it’s still a shock to many people in the U.S. In early May, a draft opinion was leaked that had circulated among the court justices, showing a majority of them were in support of the overturn. This will have huge ripple effects throughout the U.S. when it comes to reproductive healthcare. A study from the University of California predicts a quarter of abortion clinics in the U.S. are likely to shut down under this rule, with the biggest impact in the South and Midwest. Guest host Maddie Sofia talks with SciFri radio producer Kathleen Davis about what’s next for abortion rights in America and other science news of the week, including evidence of community transmission of polio in London and Canada’s single-use plastic ban.   The Millions Of Ways Animals Sense The World A shark tracks its victims by smell, but uses the unmissable signal of a fish’s electrical field to make its final strike. Fire-chaser beetles can detect the heat of distant forest fires with specialized cells in their heads. Baby tree frogs can detect the seismic signals of a striking snake from within the egg—and seem to hatch earlier in defense. And the prey-hunting visual system of one unassuming-looking Mediterranean fly, known as the killer fly, works faster than any other species we’ve observed. All of these are examples of an animal’s umwelt, their specialized sensory bubble or window onto the world, as described by German biologist Jakob Johann von Uexküll over one hundred years ago. As science writer Ed Yong writes in his newest book, An Immense World: How Animal Senses Reveal The Hidden Realms Around Us, our history of studying animals’ umwelten has been fraught with hubris, misunderstandings, and mistakes. But bit by bit, we’re learning to appreciate the truly spectacular perceptive abilities of the owl, the elephantfish, and the humble jumping spider. Yong joins guest host Maddie Sofia to share stories of amazing animal sensory abilities and the challenges of both imagining and describing these other realms using human-centric language. Plus, the uniquely human capacity to imagine other animals’ umwelten, and how we can use it to make the world better for them.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Wild and Wonderful World of Mammals Mammals may be the most diverse group of vertebrates that have ever lived. (Don’t tell the mollusk enthusiasts over at Cephalopod Week.) Many people share their homes with another mammal as a pet, like a dog or cat. The largest creatures on earth are mammals: Ocean-dwelling blue whales are the biggest animals that have ever lived, and African elephants are the biggest animals on land. And lest we forget, humans, too, are mammals. The history and diversity of mammalians is the subject of a new book by paleontologist Steve Brusatte, “The Rise and Reign of the Mammals.” Steve joins Ira to talk about why mammals have been so successful over the years, and why extinct mammals deserve as much love as the beloved dinosaurs.  A Squid-tastic Night Out  How do you fossilize a squishy squid? Do octopuses see in color, and do they have arms or tentacles? Which came first, the hard-shelled nautilus or the soft-bodied octopus, squid, or cuttlefish? And what does ‘cephalopod’ mean, anyhow?   This week, Ira ventured to the Maritime Aquarium in Norwalk, Connecticut for a special Cephalopod Week celebration. He was joined by experts Barrett Christie, the director of animal husbandry for the Maritime Aquarium, and Christopher Whalen, a postdoctoral researcher and invertebrate paleontologist at the American Museum of Natural History in New York.  They also discussed the challenges of caring for cephalopods in an aquarium environment, some of the amazing abilities of these animals, and what it’s like to discover a previously unknown cephalopod genus and species in fossilized material stored in museum archives. Together, they tackled audience cephalopod questions large, small, and multi-armed.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

FDA Approves COVID Vaccines For Kids Under Five Parents of young kids may finally breathe a big sigh of relief. On Friday the FDA granted emergency use authorization for COVID-19 vaccines for kids under the age of five. The agency approved a two-dose regimen from biotech firm Moderna and three-dose regimen from Pfizer. Small children could begin getting vaccinated as early as next week. Umair Irfan, staff writer at Vox, joins Ira to talk about COVID vaccines for little kids, the largest forest fire in New Mexico’s history and a Google engineer who claims an AI chatbot is sentient and more.     What Would Happen To IVF If Roe V. Wade Is Overturned? An overturn of Roe v. Wade could have rippling effects far beyond access to abortions. Some state laws designed to ban or severely restrict abortion could also disrupt the process of fertilizing, implanting, and freezing embryos used in in vitro fertilization. That’s because some of these laws include language about life beginning at conception, raising questions about in vitro fertilization’s (IVF) legality. Roughly 2% of all infants in the United States are born following the use of some form of artificial reproductive technology. While that figure might seem small, it’s nearly double what it was just a decade ago. Ira talks with Stephanie Boys, associate professor of social work and adjunct professor of law at Indiana University, about the legal implications of an overturn of Roe v. Wade on IVF treatment. Later, Ira also interviews Dr. Marcelle Cedars, director of the division of reproductive endocrinology at UC San Francisco and president of the American Society for Reproductive Medicine, about the science behind IVF and what people often get wrong about when and how life begins.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Americans’ Knowledge Of Reproductive Health Is Limited As the nation awaits a momentous Supreme Court decision that could overturn or severely limit the 1973 Roe V. Wade opinion on abortion, a new poll released by the Kaiser Family Foundation found serious gaps in Americans’ understanding of certain scientific aspects of reproductive health. For instance, the poll found that while medication abortion now accounts for more than half of all abortions in the U.S., fewer than three in ten U.S. adults (27%) say they have heard of the medication abortion pill known as mifepristone—though that number is up slightly from a 2019 poll, which found that 21% of adults had heard of the medication. And even among those who had heard of it, poll respondents were unsure over when and how it was used, or how to obtain the drug. Rachel Feltman, executive editor at Popular Science, joins John Dankosky to talk about the poll findings and other stories from the week in science—including an experimental drug for rectal cancer, an ancient jawbone of a polar bear, an EU ruling regarding charging ports for electronic devices, and a micrometeorite ding on the shiny mirror of the recently-launched JWST.   Some Doctors Want To Change How Race Is Used In Medicine Several months ago, a lab technologist at Barnes-Jewish Hospital mixed the blood components of two people: Alphonso Harried, who needed a kidney, and Pat Holterman-Hommes, who hoped to give him one. The goal was to see whether Harried’s body would instantly see Holterman-Hommes’ organ as a major threat and attack it before surgeons could finish a transplant. To do that, the technologist mixed in fluorescent tags that would glow if Harried’s immune defense forces would latch onto the donor’s cells in preparation for an attack. If, after a few hours, the machine found lots of glowing, it meant the kidney transplant would be doomed. It stayed dark: They were a match.“I was floored,” said Harried. Both recipient and donor were a little surprised. Harried is Black. Holterman-Hommes is white. Could a white person donate a kidney to a Black person? Would race get in the way of their plans? Both families admitted those kinds of questions were flitting around in their heads, even though they know, deep down, that “it’s more about your blood type—and all of our blood is red,” as Holterman-Hommes put it. Read more at sciencefriday.com.   How A $2 Billion U.S. Plan To Save Salmon In The Northwest Is Failing CARSON, Wash.—The fish were on their way to be executed. One minute, they were swimming around a concrete pond. The next, they were being dumped onto a stainless steel table set on an incline. Hook-nosed and wide-eyed, they thrashed and thumped their way down the table toward an air-powered guillotine. Hoses hanging from steel girders flushed blood through the grated metal floor. Hatchery workers in splattered chest waders gutted globs of bright orange eggs from the dead females and dropped them into buckets, then doused them first with a stream of sperm taken from the dead males and then with an iodine disinfectant. The fertilized eggs were trucked around the corner to an incubation building where over 200 stacked plastic trays held more than a million salmon eggs. Once hatched, they would fatten and mature in rectangular concrete tanks sunk into the ground, safe from the perils of the wild, until it was time to make their journey to the ocean.   Read more at sciencefriday.com.   How A Facebook Group Helps People Identify Mysterious Mushrooms Mushroom season has begun. A wide variety of fungi are sprouting up in forests and yards, especially after a heavy rainstorm. While wild mushrooms are generally safe to touch, eating mysterious fungi is a terrible idea. But, sometimes a child or a dog gobbles up an unknown species. In order to determine if it’s poisonous or not, you’ll need an expert opinion—quickly. That’s why Kerry Woodfield helped start a Facebook group to help people correctly identify poisonous mushrooms and plants. She recruited over 200 botanists and mycologists from all over the world to volunteer their time. In the past few years, the group has mushroomed to over 130,000 members. Guest host John Dankosky talks with Woodfield, co-founder of the Facebook group, Poisons Help; Emergency Identification For Mushrooms & Plants and foraging instructor at Wild Food UK. She discusses why she decided to start the group, its role within the poison control system, and how to talk to the kids in your life about poisonous plants and mushrooms.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Are Invasive Jumping Worms Taking Over? Most gardeners are thrilled when they find earthworms tunneling through their gardens. Normally, they’re a sign of rich soil, happy plants, and a bustling ecosystem. But one unwanted visitor is squirming its way into gardens and forests all across the country: the invasive jumping worm, known for its thrashing, restless behavior. Gardeners and scientists have become more and more concerned with these worms, which can cause damage in yards and forests. They’re known for taking dense, healthy soil and churning it into a coffee ground-like mixture, which can lead to erosion and make it more challenging for plants to anchor themselves. But it turns out that most earthworms we find in the U.S. are already invasive, and the jumping worm is just the newest one to join the party. How different is this invasive worm from the ones we’re more familiar with? To learn more, guest host John Dankosky speaks with Bernie Williams, a plant pest and disease specialist at the Wisconsin Department of Natural Resources based in Madison, Wisconsin. They talk about how to spot these worms, what kind of damage they inflict, and just how concerned we should be.   The Strange, Scrambled Genomes of Squid and Octopus Squids, octopuses, cuttlefishes, and other humble members of the cephalopod class of mollusks are many-armed (or tentacled) wizards. They change colors—despite being unable to see color themselves—to camouflage themselves. They squirt ink to escape danger. They have huge brains compared to their body sizes, which, in the case of octopuses, are distributed throughout their bodies. They can even edit their RNA to allow whole new kinds of chemistry in their bodies, potentially allowing them to adapt more quickly to changing environments. This year, SciFri continues the tradition of Cephalopod Week, celebrating the fancy tricks and ineffable strangeness of these animals. Cephalopod researchers Carrie Albertin and Z. Yan Wang talk to John Dankosky about the newest puzzles coming to light in cephalopod genomes, including genes never seen in any other animals. Plus, learn more about the dramatic, self-destructive process by which mother octopuses die after laying their eggs—powered, it seems, by steroids.   Plastic Surgery, Born In The Trenches The phrase “plastic surgery” may evoke different connotations for different people. For many, what’s conjured is a procedure done for cosmetic purposes, something likely not deemed medically necessary, and probably not covered by insurance. But the history of plastic surgery goes back to a time where facial reconstruction was often a matter of life and death. The practice got its start on the gritty, European battlefields of World War I, where surgeons and nurses had to learn fast to fix the often horrific facial injuries sustained in battle. For the men with these injuries, the innovative, often traumatic procedures were life-changing. No matter the reason, the decision to get plastic surgery is very personal, and reflects a desire to change something about one’s appearance. The World War I history of plastic surgery, and how it set the stage for today’s uses, is the subject of the new book The Facemaker, written by medical historian and author Lindsey Fitzharris. Lindsey joins guest host John Dankosky from Washington, D.C.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

20,000 Viruses Under The Sea: Mapping The Ocean’s Viral Ecosystem The ocean is the largest region of the planet and remains a source of newly discovered species. But what do you do with a treasure trove of new viruses? A research team wrote in Science last month about finding thousands of new RNA viruses, and five new taxonomic phyla, in water samples from around the globe. The new species more than doubles the known number of RNA viruses on the planet, painting a clearer picture of the vast abundance and diversity of viruses in ocean ecosystems. Though they may be small, research on DNA viruses in the ocean has previously suggested tiny viruses may have a role in something as large as the global carbon cycle. Producer Christie Taylor interviews microbiologist and study co-author Ahmed Zayed about the importance of the ocean virome.   How Recreational Weed Transformed A Small California Town From the outside, Jose Rivas’s gray, one-story office building seems just as unassuming as Woodlake, the small Tulare County City where it’s located. But once you’ve been escorted inside the wrought iron gate and checked in at the security desk, you’ll see a chemistry lab of so many potheads’ dreams: bubbling evaporators, storage tanks of liquid nitrogen, and trays and trays of drying marijuana buds. But Rivas isn’t a pothead – he’s the CEO of a cannabis company known as Premium Extracts that squeezes, distills and steams everything it can from the flower. “Essentially what we’ve developed here is a methodology to isolate the components and molecules of the cannabis plant, which are responsible for its taste, its flavor, and all the nuanced aroma that comes from each individual cannabis strain,” Rivas said.   Read more at sciencefriday.com.   Meet The Doctor Trying To Bring Medical Marijuana Into The Mainstream An increasing number of states in the U.S. are legalizing medical cannabis, which means millions of people have access to medical marijuana cards. These can be used to buy cannabis to manage pain, treat mental health conditions, and help sleep issues. But a majority of U.S. medical schools offer no education about medical marijuana and its effects on the body. As a result, many physicians and medical professionals do not feel knowledgeable enough about cannabis to make recommendations to patients about what their options are: With so many methods of taking marijuana, and an endless combination of dosages and strains, many patients and doctors feel at a loss. Dr. Mikhail Kogan is trying to change that. As the medical director for the George Washington University Center for Integrative Medicine in Washington, D.C., Dr. Kogan is one of the foremost experts on using medical cannabis to treat a variety of conditions. A majority of his patients are geriatric and suffer from conditions as wide-ranging as cancer and Alzheimer’s. Dr. Kogan traces his experience using marijuana as an alternative medicine in his book, Medical Marijuana: Dr. Kogan’s Evidence-Based Guide to the Health Benefits of Cannabis and CBD. Ira chats with Dr. Kogan about why marijuana is successful as a treatment for so many medical conditions, and how interested patients should approach their physicians if they feel it could be right for them.   The World According to Sound: Listening to WiFi When you walk down a city street, you may not know it, but you’re being bombarded with WiFi data streaming from people’s home routers, phones, and businesses. Frank Swain and Daniel Jones recorded the WiFi signals while walking down a few streets in London. They used smartphones to capture the data and turn it into sounds. It’s like a geiger counter, but for WiFi instead of radiation. Faster clicks mean higher wifi signal strength, robotic beeps are the router ID numbers. They call this project “Phantom Terrains.” They want us to consider how much of our urban world is saturated by invisible streams of data.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Scientists Found The Biggest Known Plant On Earth This week, an underwater seagrass meadow claimed the title for the world’s largest plant. This organism sprawls across 77 square miles of shallow ocean and has survived 4,500 years. To accomplish this, it kept cloning itself and created identical offshoots to spread along the sand. The ocean has changed wildly over the last 4,500 years, yet this plant has survived. Researchers believe that cloning itself may have helped the plant adapt to a changing ocean, offering hope that seagrass meadows may be more resilient than expected in the face of climate change. Sophie Bushwick, a technology editor at Scientific American, joins Ira to talk about how this mighty meadow persisted for millennia and what it tells scientists about climate change. Sophie and Ira also discuss other stories from this week in science, including what countries are most responsible for fueling the extinction of wildlife, what a well-preserved fossil tell us about the sex lives of ancient trilobites, why male mice are terrified of bananas, the creation of a flea-sized robot that walks like a crab, and how scientists developed an algorithm to pinpoint the whereabouts of unknown asteroids.   Building A Better Battery… Using Plastic? The lithium-ion battery in your cell phone, laptop, or electric car is a crucial component of the modern world. These batteries can charge quickly, and pack a lot of power into a small space. But they’re also expensive, require mining scarce lithium, and need to be handled carefully. Other battery technologies have issues as well. For example, the heavy lead-acid battery that starts your car is quite reliable—but lead has its own environmental and health costs. That’s why PolyJoule, a startup company based near Boston, is trying to create a new kind of battery, somewhere on the performance curve between those old lead-acid batteries and lithium-ion cells. Their technology relies not on a metal, but on polymer plastics. Read more at sciencefriday.com.   Bug Off: Why Mosquitoes Have An Annoyingly Amazing Sense Of Smell Mosquitoes use their sense of smell to find their next meal: us. So what would happen if you tweaked their smell so that humans smell really gross to them? That’s what Dr. Chris Potter and his lab recently tried to do—they changed the neurons responsible for the insect’s smell detection, so that in the presence of animal odors, their olfactory systems would be overwhelmed. Instead of smelling like a nice meal, mosquitoes would be repelled by the scent of humans, like if you were stuck in a small room with someone wearing too much cologne. This method worked in Drosophila, the common fruit fly, so Potter and his team were hopeful that would also be the case for mosquitoes. Instead, the experiment didn’t go as planned. Because finding a blood meal is so important for mosquitoes, those little buggers evolved backups for their backup receptors. When Potter turned one pathway off, another one kicked in. Ira talks with Dr. Chris Potter, an associate professor of neuroscience in the Johns Hopkins University School of Medicine, based in Baltimore, Maryland, about his findings, and why we can never quite get mosquitoes to bug off.   So You Think You Know About Sex When it comes to sex, there’s really no such thing as normal. What was once considered taboo, sometimes goes mainstream. And some things considered new have been around as long as sex itself, like birth control, abortion, and sexually transmitted infections. All that and more is contained in the new book, Been There, Done That: A Rousing History of Sex, by Rachel Feltman, executive editor of Popular Science, based in New York City. Radio producer Shoshannah Buxbaum talks with author Rachel Feltman about queer animals, crocodile dung contraception, ancient STIs, what led to the United States’ original abortion ban, and more.   Processing Postpartum With AI And Synthetic Breast Milk Art One of Ani Liu’s strengths as an artist is her ability to process emotion through different scientific mediums: machine learning, chemistry, 3D-printing. The result is often visceral: she’s used organic chemistry to concoct perfumes that smell like people emotionally close to her and engineered a device that enables the wearer to control the direction of swimming sperm with their mind. And at her new exhibition—next to a 3D-printed sculpture of a pig’s uterus—lies 328 feet of clear tubing with a milky-white substance pumped through it, a commentary on pumping breast milk as a new parent. “I wanted to use my own breast milk, but it wouldn’t be stable for the duration of the show,” she said. Liu became a parent shortly before the pandemic, and she channeled that experience into a new show called “Ecologies of Care,” to process her postpartum period and the communities in her life that helped her through that time. “I hope that this can allow new parents to bond and maybe feel less lonely,” she said. “In making it, I was questioning how do we create better communities of care? I made all of this work before the formula shortage, before our reproductive rights were even more under threat. When I look at this, I’m hoping that you see this particular slice of love and labor.”   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

‘Breakthrough’ In Sudden Infant Death Syndrome Research Is Misleading Last week, headlines made the rounds in online publications and social media that there was a massive breakthrough in research about SIDS: Sudden Infant Death Syndrome. A study out of Australia concluded that babies who died of SIDS had significantly lower levels of an enzyme called BChE. This study was met with cheers by people desperate to understand why SIDS happens. But many experts say we need to pump the brakes on the celebration. While the study may be promising, it was based on a very limited sample—just 26 babies who had died of SIDS. A variety of factors could explain their different levels of BChE, says Dr. Rachel Moon, a professor of pediatrics and SIDS research at the University of Virginia. Moon explains that there are two major hurdles for researchers trying to investigate the causes of SIDS. First, as grieving parents are very unlikely to consent to their deceased child’s use in medical studies, the sample pool for genetic testing of SIDS death is incredibly small. Secondly, there are just very few people who specialize in the syndrome; Dr. Moon suspects there are one hundred or fewer researchers of SIDS in the entire world. She joins guest host John Dankosky to discuss how these factors make it hard for researchers to study why some babies continue to die prematurely.   Period Tracking Apps And Digital Privacy In A Post-Roe World After the leak of the Supreme Court’s pending decision on Roe v. Wade law, digital privacy experts have been raising an alarm about digital privacy. Millions of people use apps to track their menstrual cycles—the popular app Flo has 43 million active users. And Clue, a similar company, says they have 12 million monthly active users. But in recent weeks, many on social media have been urging others to delete their period tracking apps, saying that the data you share on them could be potentially be used against you if abortion becomes criminalized in states across the country. Guest host John Dankosky talks with Laura Lazaro Cabrera, legal officer at Privacy International, about what kinds of data period tracking apps collect, how personal health data can be used in court, and how to protect your digital privacy.   How Can We Inspire The Next Generation Of Female Scientists? The work of pioneering female scientists like Marie Curie and Jane Gooddall have served as an inspiration to many aspiring scientists. But less well-known are the early and mid-career female scientists who are working to answer some of today’s biggest scientific questions. A new book from National Geographic offers kids and tweens a look into the day-to-day lives of women working in the fields of volcanology, biology, anthropology, astronomy, and more. A central theme among the profiles is persistence in the face of obstacles. Producer Shoshannah Buxbaum talks with Clare Fiesler, conservation biologist, National Geographic explorer, and co-author of No Boundaries: 25 Women Explorers and Scientists Share Adventures, Inspiration, and Advice.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Gun Violence Is A Public Health Issue As illustrated by the school shooting in Uvalde, Texas this week, gun violence is a pervasive issue in the United States. The entire Science Friday team extends our condolences to everyone affected by this tragedy. One reason gun violence is so difficult to understand is that for a long time, there was a federal freeze on funding gun-violence research. That was due to the “Dickey Amendment” which was instated in 1996. This rule barred the Centers for Disease Control and Prevention from using funds to fund research into gun violence, with the reasoning that research into this area would “advocate or promote gun control.” The 2020 federal omnibus spending bill reinstated funding for this research for the first time in more than 20 years, opening up research into gun violence. This comes during a time where healthcare professionals, including pediatricians and epidemiologists, have elevated their voices to say that gun violence is a public health issue. Firearm-related injury is now the leading cause of death of children and adolescents in the United States. Joining guest host John Dankosky to discuss gun violence as a public health issue is Roxanne Khamsi, science writer based in Montreal, Quebec.   Don’t Panic About Monkeypox Yet, Says Expert This week, the Centers for Disease Control and Prevention announced it was investigating five cases of purported monkeypox that had been found in the United States. This is a disease that’s endemic to parts of central and west Africa, and is rarely seen outside of those regions. The small number of cases here in the U.S is unusual. Monkeypox can spread from person to person through skin-to-skin contact or respiratory droplets. Its most striking symptom is an active rash and lesions in the mouth, though can also present as flu-like and include fever, headache, and soreness. As we’re still grappling with our COVID world, many people are concerned about this new illness. Dr. Anne Rimoin, professor of epidemiology at UCLA’s School of Public Health in Los Angeles, California, joins guest host John Dankosky to explain what’s going on with this wave.   Baby Formula 101: Feeding During A Shortage If you’re the parent of a newborn, you’ve likely experienced how difficult it’s gotten to find your little ones’ favorite baby formula. In February, Abbott Nutrition, a major manufacturer of baby food and formula, shut down a factory in Michigan. This came after the FDA began investigating serious—and even fatal—bacterial infections in infants who were fed formula from the plant. This one factory produces around a quarter of the United States’ baby formula, so closing it has left store shelves empty and parents scrambling to feed their babies. In a desperate state, many parents have resorted to switching their babies’ formula, seeking out donated breast milk, and even making formula at home. Guest host John Dankosky speaks with Dr. Bridget Young, an assistant professor of pediatrics at the University of Rochester and founder of Baby Formula Expert, about the makeup of baby formula, why it’s so important, and how parents can safely feed babies during the ongoing shortage. Breast Milk Banks Are Struggling To Meet Demand The nationwide shortage of baby formula is also impacting Hoosier families. More than 40 percent of retailers across the country reported being out of formula stock during the first week of May, according to Datasembly, a firm that collects data from grocery stores and other retailers. The Milk Bank is an Indianapolis-based nonprofit that provides donated breast milk to babies in the neonatal intensive care unit and babies with medical needs who benefit from human milk. Advancement Director Jenna Streit said the organization is seeing an increase in requests from families desperate to feed their babies. Read more at sciencefriday.com.   Diving Into The Deep World Of Sharks Sharks are some of the longest-enduring residents of our planet—there were shark relatives in the oceans before Earth had trees, and before the planet Saturn got its rings. But now, many species of shark are threatened, mainly as a result of unsustainable fishing practices. Dr. David Shiffman, marine researcher and social media shark advocate, writes in his new book Why Sharks Matter: A Deep Dive with the World’s Most Misunderstood Predator about people’s fascination with sharks. He shares some amazing shark facts—did you know that Greenland sharks can live for 400 years, and some have been found with the remains of polar bears in their stomachs? Shiffman joins John Dankosky to share his shark lore, and to talk about the role of sharks in the ocean ecosystem, safety around sharks, threats to their survival, and what individuals can do to help protect these powerful, yet misunderstood, creatures.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

We Need To Talk About Bird Poop Seabird poop—sometimes called guano—was the “white gold” of fertilizers for humans for millennia. Rich in nitrogen and phosphorus from birds’ fish-based diets, the substance shaped trade routes and powered economies until chemical fertilizers replaced it. But while people may no longer find bird poop profitable, these same poop deposits—often found on islands or coasts where the birds nest and rear their young—may also be nurturing ecosystems that would be left high and dry if the birds were to disappear. As seabird populations quickly decline, that’s becoming an increasing risk. Australian researchers Megan Grant and Jennifer Lavers talk to Ira about the under-appreciated role of bird guano in ecosystems, and why scientists should be looking more closely at the poop patterns of endangered seabirds.   How Did ‘Prehistoric Planet’ Make Dinosaurs Look So Real? Being a fan of dinosaurs has its challenges. The largest, perhaps, is that no human has seen these creatures with their own eyes. Depictions of prehistoric creatures in film and media have been based on the research available at the time, but accurate knowledge about feathers, colors, and behavior have changed as science has progressed. The much-anticipated docuseries “Prehistoric Planet” dives into the most recent research about dinosaurs and their environment and illustrates what the world might have looked like 66 million years ago. The show uses hyper-realistic computer imaging to make the most realistic dinosaurs seen on film yet. The result is an epic look at how dinosaurs once lived. Joining Ira to talk about “Prehistoric Planet” is producer Tim Walker and paleontologist Darren Naish, who served as the show’s lead science consultant.    Midwestern Farmers Face Drought And Dust Even with a few recent rains, much of the Great Plains are in a drought. Wildfires have swept across the grasslands and farmers are worried about how they’ll make it through the growing season. Randy Uhrmacher is in his tractor, planting corn and soybeans in central Nebraska. But it’s hard to see his work. The soil is so dry that clouds of dust hang in the air as he drives through his fields. “Not sure how I’m supposed to see what I’m doing tonight,” Uhrmacher said on a recent night of planting. Even turning on the windshield wipers didn’t help him see through the dust storm. If he didn’t use soil conservation practices like reduced tillage and cover crops, he said his fields could look like something out of the 1930s Dust Bowl. It’s the driest spring Uhrmacher can remember in his 38 years of farming. Drought is a challenge many farmers and ranchers are facing in the middle of the country. Read the rest on sciencefriday.com.   When Climate Change Reaches Your Plate No matter how you slice it, climate change will alter what we eat in the future. Today, just 13 crops provide 80% of people’s energy intake worldwide, and about half of our calories come from wheat, maize and rice. Yet some of these crops may not grow well in the higher temperatures, unpredictable rainfall and extreme weather events caused by climate change. Already, drought, heat waves and flash floods are damaging crops around the world. “We must diversify our food basket,” says Festo Massawe. He’s executive director of Future Food Beacon Malaysia, a group at the University of Nottingham Malaysia campus in Semenyih that studies the impact of climate change on food security. That goes beyond what we eat to how we grow it. The trick will be investing in every possible solution: breeding crops so they’re more climate resilient, genetically engineering foods in the lab and studying crops that we just don’t know enough about, says ecologist Samuel Pironon of the Royal Botanic Gardens, Kew in London. To feed a growing population in a rapidly changing world, food scientists are exploring many possible avenues, while thinking about how to be environmentally friendly. Read the rest on sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

A Grim Milestone, As Cases Continue This week, COVID-19 case trackers from the Centers for Disease Control and Prevention hit a grim milestone, logging over one million deaths in the country from the pandemic. The true total is likely to be much higher, as many cases go unreported, or are logged as deaths due to other factors in death certificates. And the pandemic continues, with locations such as New York City reaching “high” transmission levels, and recommending that people mask again indoors. Timothy Revell, deputy United States editor for New Scientist, joins Ira to talk about the groups that have been most affected by the pandemic death toll, and the continuing battle against the coronavirus—including the availability of another round of free tests via the postal service. They also tackle other stories from the week in science, including Congressional hearings on UFO sightings, new theories about what helps make a planet habitable, what can be learned from a fossilized tooth in Laos, and the important psychological question of why some word pairings are funnier than others.   How Texas’ Abortion Restrictions Limit Access To Miscarriage Care As the Supreme Court appears poised to return abortion regulation to the states, recent experience in Texas illustrates that medical care for miscarriages and dangerous ectopic pregnancies would also be threatened if restrictions become more widespread. One Texas law passed last year lists several medications as abortion-inducing drugs and largely bars their use for abortion after the seventh week of pregnancy. But two of those drugs, misoprostol and mifepristone, are the only drugs recommended in the American College of Obstetricians and Gynecologists guidelines for treating a patient after an early pregnancy loss. The other miscarriage treatment is a procedure described as surgical uterine evacuation to remove the pregnancy tissue — the same approach as for an abortion. “The challenge is that the treatment for an abortion and the treatment for a miscarriage are exactly the same,” said Dr. Sarah Prager, a professor of obstetrics and gynecology at the University of Washington in Seattle and an expert in early pregnancy loss. Read the rest on sciencefriday.com.   The End Of Astronauts: Why Robots Are The Future Of Exploration Sending astronauts into space is arguably one of society’s most impressive scientific achievements. It’s a marvel of engineering, and it also taps into the human desire for exploration. But just because we can send humans into space, should we? Robots are already good space explorers. And they’re only going to get smarter in the near future. Martin Rees, the United Kingdom’s Astronomer Royal, and Donald Goldsmith, astrophysicist and science writer, argue that the cost of human space travel largely outweighs its benefits. They talk with Ira about their new book, The End of Astronauts: Why Robots Are the Future of Exploration.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Abortion Pills Are Used For Most U.S. Abortions. What Are They? The draft Supreme Court decision overturning Roe v. Wade means abortion access is once again in jeopardy. Nearly half of U.S. states will immediately ban abortion upon a Roe v. Wade overturn. Medication abortion, or abortion by pill, is currently the most common method of abortion in the United States. In 2020, 54% of abortions in the United States were medication abortions, according to research from the Guttmacher Institute. If the Supreme Court decision is overturned, it’s expected that the ease and convenience of an abortion pill may make medication abortion an even larger share of all abortions nationwide. Ira talks with Ushma Upadhyay, associate professor of obstetrics, gynecology and reproductive sciences at Advancing New Standards in Reproductive Health at UC San Francisco. Upadhyay explains how medication abortion works, how its regulated, and its role in a possible post Roe v. Wade era.   One Alaskan Island’s Fight For A Rodent-Free Future For millions of years, birds lived nearly predator free in the Aleutian Islands. The volcanic archipelago stretches westward for 1,200 miles from the Alaska Peninsula, dotting a border between the North Pacific Ocean and Bering Sea. Hundreds of bird species thrived here. But then came the rats. When a Japanese boat sank in the Western Aleutians around 1780, stowaway rats jumped ship and made it to one of the islands, wreaking havoc on the ecosystem. The rodents proliferated during World War II, when American Navy ships traveled along the chain, expanding the rats’ domain. “The rats are like an oil spill that keeps on spilling, year after year,” said Steve Delehanty, the refuge manager for the Alaska Maritime National Wildlife Refuge. “We would never allow an oil spill to go on for decades or centuries, nor should we allow rats to be a forever-presence on these islands.” Read the rest at sciencefriday.com. Campsites At National Parks ‘Harder Than Getting Beyonce Tickets’ Access to the outdoors has long had an equity problem. Whether it’s the expense of equipment or hostility from fellow hikers, marginalized groups have had more barriers to enjoying recreation in nature. Now, new research in the Journal of Park and Recreation Administration has data on one tool that was supposed to improve access for more people: the online system of reserving campgrounds at national parks. Compared to people camping at first-come first-serve campsites in the same parks, the people who successfully use the reservation systems are wealthier, better-educated, and more likely to be white. Ira talks to research co-author Will Rice about the factors that make reservations harder to access, how wealthier people succeed in working the system to their advantage, and how publicly-funded campgrounds like the national parks could more fairly manage rising demand.   How Restaurant Menus Mirror Our Warming Ocean Before the 1980’s, you probably wouldn’t have found Humboldt squid on a restaurant menu in Vancouver. But now, the warm water-loving critter has expanded towards the poles as ocean temperatures rise, and you can see that change on restaurant menus. In a new study in the journal Environmental Biology of Fishes, researchers from the University of British Columbia looked at more than 360 menus, dating back to 1880. They found a connection between climate change and which seafood types rose to fame on restaurant menus over the years… and which ones flopped off. Ira speaks with study co-author Dr. William Cheung about how our menus mirror what’s happening to our oceans. Plus, a conversation with Chef Ned Bell about why it’s important that our plates adapt to changes in our local ecosystems.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

As COVID Cases Rises, Effectiveness Of Vaccines Lessens In Kids As parts of the country continue to see waves of infection from the omicron variant of COVID-19, parents of children over age five have taken heart at the availability of vaccines—while parents of kids five and under have continued to wait for an approved dose. But even as the case numbers continue to climb, the vaccines are less effective against the more-virulent omicron variants—and, for some reason, dramatically less effective in kids. Koerth joins Ira to discuss the story, and why experts say it’s still worthwhile getting vaccinated even if the vaccines don’t have the dramatic performance seen at the beginning of the vaccination phase of the pandemic. They also talk about a bird flu outbreak troubling poultry farms around the world, the odd immune system of the sleepy lizard, and how scientists are trying to catch a whiff of the odors of ancient Egypt.   Meet The ‘Gentle Giant,’ Your Friendly Neighborhood Black Hole It wasn’t long ago that the idea of capturing an image of a black hole sounded like a joke, or an oxymoron. How do you take a picture of something so dense that it absorbs the very light around it? But three years ago, we got our first good look with help from the Event Horizon Telescope, which is actually multiple radio telescopes all linked together. That picture was a slightly blurry, red-and-orange doughnut—the best picture to date of the supermassive black hole at the center of a galaxy called Messier 87, which is called Messier 87* or M87*. (Black holes are given an asterisk after the name of their location). Today, it’s possible to buy jewelry and t-shirts with that picture, drink out of a M87*-adorned coffee cup, or just make it your phone background. Now that the first picture of a black hole is practically a pop culture meme, how do you one-up that? In the past weeks, the Event Horizon Telescope team alluded to a new ‘breakthrough’ hiding in the Milky Way. On Thursday, the team unveiled that breakthrough: the first image of our nearest black hole neighbor in the heart of our galaxy. Sagittarius A* is a “gentle giant,” says Feryal Ozel, a member of the global collaboration that created this image. It consumes far less of the gas swirling nearby than M87*, and is far fainter as a result. The Milky Way’s black hole also lacks the galaxy-spanning jets of M87* and, due to its smaller size, the gas around it moves so fast that it took years longer to capture a clear picture. Ira talks with Ozel about what it takes to obtain such a picture, and what it can tell us about the extreme, high-temperature physics of black holes throughout the universe.   What Was It Like To Witness The End Of The Dinosaurs? 66 million years ago, a massive asteroid hit what we know today as the Yucatán Peninsula of Mexico. Many people have a general idea of what happened next: The age of the dinosaurs was brought to a close, making room for mammals like us to thrive. But fewer people know what happened in the days, weeks, and years after impact. Increased research on fossils and geological remains from this time period have helped scientists paint a picture of this era. For large, non-avian dinosaurs like Triceratops and Tyrannosaurus rex, extinction was swift following the asteroid impact. But for creatures that were able to stay underwater and underground, their post-impact stories are more complicated. Joining Ira to discuss her book The Last Days of the Dinosaurs is Riley Black, science writer based in Salt Lake City, Utah.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

The Seafaring Life Of ‘Modern-Day Captain Nemo,’ Robert Ballard In 1985, oceanographer Robert Ballard was sent on a secret deep-sea search operative with a very specific mission: to seek two sunken nuclear submarines. Ballard, who by then had explored the Mid-Atlantic Ridge and helped design deep-sea research submersibles, was assigned by the U.S. Navy to investigate and take images of the U.S.S. Thresher and U.S.S. Scorpion. But locating these two wreckages wouldn’t bring him to fame—instead, it was another watery grave he would find along the way. After he located the two subs, Ballard had time left in the mission to satiate a hunt he had begun nearly a decade prior: He discovered the R.M.S. Titanic, which sank into the North Atlantic 110 years ago. While the Titanic might be his most publicized finding, the famed marine archaeologist has adventured beneath the waves on more than 150 expeditions that have broadened our understanding of the oceans and the planet. “We think there’s probably more history in the deep sea than all of the museums of the world combined—and we’re only now opening those doors to those museums,” he says. Ballard’s recorded the activity of hydrothermal vents, the ecology of hot springs on the ocean floor, and the diversity of incredible marine creatures. In excerpts from two conversations in the Science Friday archives (originally recorded in 2000 and 2009), Ballard describes the 1985 expedition in which he discovered the wreck of the Titanic. He also discusses the value of combining the efforts of oceanographers, engineers, and social scientists to study the world’s deep oceans. Plus, Ballard elaborates on his belief that some undersea finds should be left preserved and protected, and his work in expanding access to ocean research via telepresence and computer links.   Meet The Drag Artists Who Are Making Science More Accessible Each generation has had science communicators who brought a sometimes stuffy, siloed subject into homes, inspiring minds young and old. Scientists like Don Herbert, Carl Sagan, and Bill Nye are classic examples. But our modern age of social media has brought more diverse communicators into the forefront of science communication, including the wild, wonderful world of STEM drag stars. These are queer folk who mix the flashy fashions of the drag world with science education. Some, like Kyne, use TikTok as a medium to teach concepts like math. Others, like Pattie Gonia, use drag to attract more people to the great outdoors. The accessibility of the internet has made these personalities available to a wide audience. Kyne and Pattie Gonia join Ira to talk about the magic drag can bring to science education, and why they think the future of SciComm looks more diverse than the past. This segment originally aired on February 11, 2022.  Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

How Grief Rewires The Brain Being a human can be a wonderful thing. We’re social creatures, craving strong bonds with family and friends. Those relationships can be the most rewarding parts of life. But having strong relationships also means the possibility of experiencing loss. Grief is one of the hardest things people go through in life. Those who have lost a loved one know the feeling of overwhelming sadness and heartache that seems to well up from the very depths of the body. To understand why we feel the way we do when we grieve, the logical place to turn is to the source of our emotions: the brain. A new book explores the neuroscience behind this profound human experience. Ira speaks to Mary-Frances O’Connor, author of The Grieving Brain: The Surprising Science of How We Learn from Love and Loss, a neuroscientist, about adjusting to life after loss. This segment originally aired on February 11, 2022.   Fish Make More Noise Than You Think One of the most famous films of undersea explorer Jacques Cousteau was titled The Silent World. But when you actually stop and listen to the fishes, the world beneath the waves is a surprisingly noisy place. In a recent study published in the journal Ichthyology & Herpetology, researchers report that as many of two-thirds of the ray-finned fish families either are known to make sounds, or at least have the physical capability to do so. Some fish use specialized muscles around their buoyancy-modulating swim bladders to make noise. Others might blow bubbles out their mouths, or, in the case of herring, out their rear ends, producing “fish farts.” Still other species use ridges on their bodies to make noises similar to the way crickets do, grind their teeth, or snap a tendon to sound off. The noises serve a variety of purposes, from calling for a mate to warning off an adversary. Aaron Rice, principal ecologist in the K. Lisa Yang Center for Conservation Bioacoustics at the Cornell Lab of Ornithology in Ithaca, walks Ira through some of the unusual sounds produced by known fish around the world—and some mystery noises that they know are produced by fish, but have yet to identify. This segment originally aired on February 18, 2022.   Transcripts for these segments are available on sciencefriday.com.

What’s Up With The Spike In Hepatitis Among Young Kids? This spring, there’s been a strange spike in hepatitis cases among young children. Hepatitis can leave kids with stomach pain, jaundice, and a generally icky feeling. 169 cases have been recorded globally, and one death. A majority of these cases have been found in the United Kingdom, with the others in Spain, Israel, and the U.S. The sudden rise in cases is unusual, and physicians are trying to unlock the mystery of where this is coming from. Joining guest host Umair Irfan to talk about this story and other science news of the week, including the holdup over COVID-19 vaccines for kids under five years old, is Science Friday producer Kathleen Davis.   COVID-19 Vaccines Are Some Divorced Parents’ Newest Divide Heather and Norm have had their share of disagreements. Their separation seven years ago and the ensuing custody battle were contentious. But over the years, the pair has found a way to weather disputes cordially. They’ve made big decisions together and checked in regularly about their two kids, now ages 9 and 11. But the rhythm of give and take they so carefully cultivated came to an abrupt end last fall, when it came time to decide whether to vaccinate their kids against COVID-19 — Heather was for it; Norm was against. (WHYY News has withheld their last names to protect the privacy of their children.) In Pennsylvania, decisions about children’s health must be made jointly by parents with shared legal custody, so the dispute went to court. And Heather and Norm weren’t the only ones who couldn’t come to an agreement on their own. In the months since the vaccine was approved for children, family court judges across the commonwealth have seen skyrocketing numbers of similar cases: Divorced parents who can’t agree on what to do. Read the rest at sciencefriday.com.   Why Sharing Viruses Is Good… For Science The COVID-19 pandemic has sparked an unprecedented era of global scientific collaboration. Just a few days after the SARS-CoV-2 virus was isolated, its genomic sequence was posted online and accessible to researchers around the world. Scientists quickly went to work trying to understand this brand new pathogen, and began to counter it with treatments and vaccines. But genetic sequences have their limits, and scientists also have to work with the real viruses. Sometimes there’s no substitute for a specimen. Sharing pathogens across borders is where things get a lot more complicated. A web of international laws govern some, but not all aspects of how pathogens are shared and stored. Science isn’t the only factor here—global politics shape responses to the tracking and detection of disease. What happens if countries are not on the friendliest terms with each other, or if they aren’t up to the same safety standards? Could viruses be misused or mishandled, potentially escaping containment? There are some historical examples that could be instructive. And while the COVID-19 pandemic spurred cooperation between scientists, some governments downplayed or misled the world about the state of the pandemic. Does misinformation remain a threat, and if so, how can we prevent it? Guest host Umair Irfan talks with Amber Hartman Scholz, head of science policy at Leibniz Institute DSMZ German Collection of Microorganisms and Cell Cultures based in Braunschweig, Germany, to unpack the complex system of scientific virus sharing, and the importance of developing a better process.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

Your Dog’s Breed Doesn’t Always Determine How They’ll Behave The dog world abounds with stereotypes about the personalities of different breeds. The American Kennel Club describes chihuahuas as “sassy,” and malamutes as “loyal,” while breed-specific legislation in many cities target breeds like pit bulls as stereotypically aggressive. But do these stereotypes say anything true about a dog’s personality and behaviors? New research in the journal Science looked at the genomes of thousands of dogs, both purebred and mutt, plus owner reports on personality traits. And their findings were more complicated: Yes, many behaviors have a genetic or heritable component. But breed, it turns out, may be a poor predictor of many things, including aggression or friendliness. Guest host Umair Irfan talks to co-author Elinor Karlsson about the complexities of genetics, personality, and breed in our best friends.   Life At The Poles Is Changing. What Do These Frozen Regions Forecast? It’s been a spring of alarming headlines for the coldest climates on Earth, from record heat waves at both poles, to a never-before-seen ice shelf collapse in East Antarctica. But what can we say for sure about how the Arctic and Antarctic are changing under global warming? In this Zoom taping, guest host Umair Irfan talks to two scientists, Arctic climate researcher Uma Bhatt and Antarctic biological oceanographer Oscar Schofield, about the changes they’re seeing on the ice and in the water, and the complex but different ecologies of both these regions. Plus, answering listener questions about the warming polar regions.   Can Hydrogen-Fuel Cells Drive The Car Market? If you’ve been shopping for a new car recently, you may have been struck by the number of electric vehicles available from different manufacturers. According to Kelley Blue book data, Americans bought almost twice as many EVs in the first quarter of 2022 compared to the first quarter of 2021, with battery-powered electric vehicles reaching 5% of the new car market for the first time. But electric isn’t the only alternative to the traditional gasoline or diesel powered car—there are also hydrogen fuel cell car options, such as the Mirai, a hydrogen fuel cell car from Toyota. In those vehicles, compressed hydrogen is used in conjunction with a catalytic fuel cell membrane to generate the electricity to drive the vehicle. Cars using the technology can have a 300-mile range, with fuel-ups taking as little as five minutes. And while today much of that hydrogen comes from fossil fuels, there is the potential for it to come from electrolysis of water via renewable energy, such as solar or wind. But there are big technological and infrastructure challenges to solve before fuel cell technology could compete with the battery-powered electric car. Joan Ogden, a professor emeritus of environmental science and policy at UC Davis, joins Umair Irfan to talk about the requirements for building the refueling infrastructure that would make fuel cell vehicles a more attractive option to consumers.   Is It Possible To Decarbonize Shipping? It’s said that 90% of all goods at some point travel on a ship. Much of that transportation is on container ships, gargantuan vessels that carry thousands of the 20-foot or 40-foot shipping containers that serve as the foundation of the global economy. But those big cargo ships have a massive energy appetite, and the “bunker oil” fuel they devour is notoriously dirty. If the global shipping industry was a country, it would be the sixth-largest greenhouse gas emitting country in the world. Lee Kindberg, head of environment and sustainability for North America for the shipping giant Maersk, joins Umair Irfan to talk about the company’s efforts to reduce its carbon footprint. Maersk recently placed an order for a dozen methanol-fueled cargo ships, the first of which it plans to launch next year.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Building The World’s Largest Animal Crossing Outside of LA There’s a spot on Highway 101 in Agoura Hills, it’s pretty inconspicuous. There’s brown and green rolling hills on either side of the highway. Homes are sprinkled here and there. And then a small metal gate that leads off on a hiking trail. You probably wouldn’t know it, but soon this spot will be the location of the world’s largest animal crossing. This crossing will reconnect habitats that have been cut off from each other for three quarters of a century and it’ll do it over a highway that is constantly buzzing with cars — 300,000 pass by this spot every single day. In this piece we’re going on a geography voyage — from the north side of the highway to the south, and up the hills, above the highway, to get the real view. We’ll start here — there’s a big open space on the northern side of the highway. It’s at the entrance to Liberty Canyon and where I meet Beth Pratt. “You have oak trees, a little creek area here. And we’re listening to, actually, an Anna’s hummingbird giving a little song for us that is actually resonating even over that, that noise of traffic,” Pratt said. She is the California Regional Director for the National Wildlife Federation. “For me what’s kind of remarkable, but also sad. It’s the last sixteen hundred feet of protected space on both sides of the freeway,” said Pratt. Read the rest on sciencefriday.com.   Life Has Found A Way On The Great Pacific Garbage Patch The Great Pacific Garbage Patch is a huge collection of trash floating in the North Pacific Ocean. It’s made up mostly of plastic—things like water bottles, shoes, and fishing gear, but also a large amount of microplastics, tiny bits of broken-down plastic that can be invisible to the naked eye. A giant, swirling patch of trash seems bad. But recent research has revealed a complicating factor: Marine life has colonized the garbage patch, making the floating plastic their new homes. As the classic Jurassic Park quote goes, “Life finds a way.” Joining Ira to talk about life on the Great Pacific Garbage Patch is Linsey Haram, AAAS fellow at the U.S. Department of Agriculture based in Alexandria, Virginia. Her research on the Garbage Patch was done for the Smithsonian.   Enzymes Are Taking On Our Plastic Problem Flip over a plastic water bottle, or a takeout container, and it’s very likely you’ll find the number “1” stamped on the bottom. This is the sign of the problematic plastic PET, which is a large source for plastic pollution. It’s estimated that only a third or less of this type of plastic is recycled into something new. Scientists are getting creative in trying to outsmart plastics that don’t want to be recycled. Some are looking into enzymes that can break down plastic into its more basic molecular building blocks. The idea is that these smaller molecules are easier to turn into new things, making upcycling an easier task. Joining Ira to talk about the frontier of enzymes as recycling powerhouses is Jennifer DuBois, professor of chemistry at Montana State University in Bozeman, Montana.   Indigenous Knowledge Is Central To Climate Solutions As the United States observes Earth Day this year, many will be thinking about their personal relationship with—and responsibility to—the planet. But in an era of multiple planetary crises, including extinctions, global warming, and contaminated water, what about the Indigenous peoples whose millennia-old relationship with their land has been disrupted and sometimes severed by colonialism and other displacements? Indigenous environmental scientist and author Jessica Hernandez talks to Ira about the harms the Western science has perpetuated against colonized people, as white environmentalists created national parks on Indigenous lands and “helicopter scientists” continue to do research in the global south while using the wealth of Western institutions. And she explains why greater recognition of Indigenous science, and partnerships that center Indigenous peoples and their research questions, is good for the entire planet.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.    

Celebrating Earth Day With Sustainable Action Today is Earth Day, when many people around the world are taking time to think about their relationship with the planet and to focus on activities helping to mitigate the existential problems our environment faces. And we will be doing the same: devoting our program to Earth Day stories, ideas, and issues. Sara Kiley Watson, assistant editor at Popular Science in charge of their sustainability coverage, joins Ira to talk about some challenges facing our planet—from air pollution in megacities to the tension between ethanol biofuels and food supplies. She also offers some tips for actions individuals can take to make a small difference on their own, such as improving home energy efficiency even if you’re a renter, reducing the impact of your takeout order, or considering a neighborhood microgrid.   Can The Latest IPCC Report Pave The Way To Better Climate Policy? One of the best resources to understand the state of our climate crisis is the report developed by the United Nations’ Intergovernmental Panel on Climate Change (IPCC), every six to seven years. The most recent installment of the IPCC report, compiled by Working Group III, was released earlier this month. It outlined ambitious steps needed to mitigate some of the worst possible climate futures. It’s increasingly unlikely that we’ll be able to keep the planet from warming by an average of 1.5 degrees Celsius above pre-industrial levels. Yet, the report optimistically focuses on achieving that 1.5 degree benchmark. The report’s recommendations include things like phasing out coal entirely, slashing methane emissions by a third, reducing our carbon output among all sectors of the global economy, and developing new technologies to help us do it. But how do governments make laws to reach these goals? That’s not addressed in the IPCC report. Ira is joined by David Victor, professor of innovation and public policy in the School of Global Policy and Strategy at UC San Diego to discuss the difficulty in developing climate policy solutions and some that seem promising.   Can Carbon Removal Actually Make A Difference In Reducing Emissions? One of the technologies highlighted in the latest IPCC report is carbon removal. Not to be confused with carbon capture, CO2 removal is a process that absorbs CO2 already in the atmosphere and stores it elsewhere. Carbon capture, on the other hand, is removing CO2 from smokestacks, for example, before it gets into the air. CO2 removal technology has some climate scientists worried about pouring money into this new technology, in lieu of cutting back on our reliance on fossil fuels. Joining Ira is Amar Bhardwaj, energy technology policy fellow at the International Energy Agency, to talk about the pros and cons of carbon removal.   Composing A Sound Map Of An Ever-Changing River Annea Lockwood thinks of rivers as “live phenomena” that are constantly changing and shifting. She’s been drawn to the energy that rivers create, and the sound that energy makes, since she first started working with environmental recordings in the 1960s. One of her projects has been to create detailed “river maps” of the Hudson, Danube, and Housatonic rivers. Using stereo microphones and underwater hydrophones, she captures the gentle, powerful sounds of the water, along with the noises of insects, birds, and occasional humans she finds along the way. Lockwood’s composition, “A Sound Map of the Housatonic River”—a decade old, this year—takes listeners on a 150-mile tour, from the headwaters in the Berkshire Mountains of Massachusetts, past sites of toxic PCB contamination, to the Connecticut Audubon sanctuary, where the river spills into Long Island Sound.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.      

FDA Approves First Breathalyzer COVID Test The FDA approved a new COVID breathalyzer test, which gives results in just three minutes. It’s the first test that identifies chemical compounds of coronavirus in breath. The testing unit is about the size of a piece of carry-on luggage and is intended to be used in medical offices and mobile testing sites. Nsikan Akpan, health and science editor at WNYC Radio based in New York City, talks with Ira about this new COVID test and other science news of the week, including new research on ocean warming and storm frequency, the story behind moon dust that sold for $500,000, and President Biden’s decision to allow higher-ethanol gasoline sales this summer, which is usually banned from June to September.   Major Undercount In COVID Cases Makes Our Tracking Data Less Useful For many, it’s become routine to pull up a chart of COVID-19 case counts by state or county. Though imperfect, it’s been a pretty good way to assess risk levels: Follow the data. But recently, that data has become even more imperfect, and less useful at determining individual risk. Thanks to a variety of factors, case counts are now so inaccurate that a COVID surge could be missed entirely. “We are really flying blind,” said epidemiologist Katelyn Jetelina, assistant professor at the University of Texas School of Public Health and the author of the newsletter, Your Local Epidemiologist. Currently, for every 100 COVID-19 cases in the United States, only seven are being officially recorded, according to projections from the Institute for Health Metrics and Evaluation. As a point of comparison, during the Delta wave 43 out of 100 cases were recorded, and during the Omicron wave the figure was 26 out of 100 cases. The reasons behind the current undercount are due in part to the unintended consequences of good public health policies, like increased vaccinations and the availability of at-home tests, both of which lead to fewer cases being included in official CDC data. Mild cases are more common now, thanks to vaccines and changing variants. “People may just not get tested because they just have the sniffles,” said Jetelina.  Others may forgo testing altogether. The virus can spread asymptomatically from there. “We just haven’t done the groundwork as a nation to systematically capture these cases,” said Jetelina. Read the rest at sciencefriday.com.   How Would You Spend A Trillion Dollars? Imagining what you might do if you won the lottery or received a huge inheritance from a long-lost relative is a classic daydream. But in a new book, journalist Rowan Hooper imagines spending a trillion dollars—not on fancy dinners, sparkly jewels or mega yachts, but on tackling ten global challenges. While a trillion dollars can’t solve every problem, he estimates it would go a long way towards tackling disease, combating global warming, protecting biodiversity, or even establishing a moon base. Hooper joins Ira to talk about his book, How to Save the World for Just a Trillion Dollars: The Ten Biggest Problems We Can Actually Fix, and to daydream about where and how an infusion of cash might do the most to accelerate solutions to some of the planet’s problems.     Transcripts for each segment will be available the week after the show airs on sciencefriday.com.

Did ‘Soylent Green’s’ Predictions About 2022 Hold Up? In the spring of 1973, the movie Soylent Green premiered. The film drops us into a New York City that’s overcrowded, polluted, and dealing with the effects of a climate catastrophe. Only the city’s elite can afford clean water and real foods, like strawberry jam. The rest of the population relies on a communal food supply called Soylent. There’s Soylent Red, Soylent Yellow… and a new product: Soylent Green. The year the film takes place? 2022. And spoiler alert: Soylent Green is people. While the 2022 the film depicts is—thankfully—much darker than our current situation, the message still holds up. When the film premiered, Rachel Carson’s Silent Spring and the Clean Air Act were very much in the country’s consciousness. 50 years later, warmer temperatures, soil degradation, and social inequality are more relevant than ever. Joining Ira to talk about the importance of Soylent Green 50 years later is Sonia Epstein, associate curator of science and film at the Museum of the Moving Image in New York City. Also joining is soil scientist Jo Handelsman, director of the Wisconsin Institute for Discovery in Madison, Wisconsin.   The National Science Foundation Has A New Goal: Entrepreneurship The South By Southwest festival in Austin this year was the site of at least one unusual event: a press announcement by the head of the National Science Foundation, the primary federal agency tasked with funding and supporting fundamental research and investing in the education of young scientists in those fields. NSF director Sethuraman Panchanathan announced he was creating a new directorate for Technology, Innovation, and Partnerships (TIP) to focus on “use-inspired” research that can be brought to commercial markets, in partnership with businesses and entrepreneurs. The goal, Panchanathan said in a press release in March, was to “accelerate the development of new technologies and products that improve Americans’ way of life, grow the economy and create new jobs, and strengthen and sustain U.S. competitiveness for decades to come.” Panchanathan talks to Ira about what this new chapter means for the NSF, the future of basic research with no immediate commercial uses, and the challenges of persuading the public that failure, as much as success, is inherent to science.   The Colorado River Misses Its Snow High in the Rocky Mountains, under thin air and bluebird skies, the Colorado River basin is slowly filling its savings account. Craggy peaks become smooth walls of white and piles of snow climb conifer trunks, covering even the deepest, darkest corners of the woods with a glimmering blanket. The snow that accumulates in the mountains of Colorado and Wyoming will eventually become water in the Colorado River. Some of it will flow as far south as Mexico, running through kitchen faucets in cities and suburbs along the way, or watering crops that keep America fed through the winter. Year by year, those piles are getting slightly smaller and melting earlier — slowly exhibiting the sting of a warming climate. The way we measure the snow is changing too, as a shifting baseline for what counts as “average” paints a somewhat deceptive picture of how much snow is stored up in the mountains. Read the rest at sciencefriday.com.   Exploring Neptune’s Unusual Seasons Planetary scientists monitoring how the outer planets change over time have made a surprising observation of springtime on the planet Neptune. As the planet moves towards summer in its southern hemisphere, one might expect it to get warmer—but in data taken over 17 years, researchers observed that the average temperature actually seems to be declining. One theory involves the conversion of atmospheric methane, which traps heat, to ethane or other hydrocarbon compounds that release heat more readily, but more research is needed. The researchers also spotted the rapid formation of a hot-spot at the south pole of Neptune, with an increase of some 11 degrees C over just two Earth years. Models had predicted a temperature swing of perhaps 15 degrees over the entire seasonal cycle. These findings were reported this week in the Planetary Science Journal. Scientists don’t know very much about Neptune—it’s over 30 times Earth’s distance from the sun, and gets only one nine-hundredth of the sunlight. It takes around 165 Earth years to complete an orbit, meaning that the researchers’ 17 years of data account for only a small fraction of one season. Because of the planet’s tilt and its long orbit, the last time the planet’s north pole was visible from Earth was in the 1960s. And we’ve only visited once, via the Voyager spacecraft, over 30 years ago. Michael Roman, a planetary scientist at the University of Leicester in the UK, and one of the authors of the report, joins Ira to talk about the strange springtime on Neptune—and the planet’s many remaining mysteries.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com.  

The Future of Sustainable Farming Could Be Cold Plasma Plasma is a fascinating medium. It’s considered the fourth state of matter—alongside solid, liquid and gas—and it’s everywhere. In fact, more than 99.9% of all matter in the universe is assumed to be in plasma form. You may be most familiar with plasma as the material inside those glowing novelty lamps found in museum gift shops, but it’s naturally found in the sun, lightning, and the northern lights. Research into plasma and how it intersects with various industries has been increasing, especially in the area of agriculture. Cold plasma specifically is being tested as a way to speed up plant growth and make fertilizer that’s better for the environment. And it works: Lots of research has shown that exposure to cold plasma makes seeds germinate faster. While this sounds like a sci-fi concept, farmers have seen for decades that plants grown on the site of lightning strikes grow faster. The strangest part? Scientists don’t know why this works, only that it does. Joining Ira to talk about cold plasma and its possible future in the agriculture world is Jose Lopez, professor of physics at Seton Hall University, based in South Orange, New Jersey. Lopez is also program manager for plasma physics at the National Science Foundation.   Why Are Teenagers So Sleep Deprived? Teenagers have a reputation for being moody, making rash decisions, and maybe even being a bit lazy. Turns out, lack of sleep may be partly to blame for some of this stereotypical behavior. Contrary to popular belief, teens actually need more sleep than adults—about 9 to 10 hours a night—to help support critical brain development. But American teens are getting less sleep than they ever have before due to a perfect storm of biology, increased homework, early school start-times, and technology. Over the past three decades, the average American teens’ sleep has shrunk to just 6.5 hours a night. Ira talks with Heather Turgeon and Julie Wright, psychotherapists and sleep specialists. They’re co-authors of the new book, Generation Sleepless: Why Teens and Tweens Are Not Sleeping Enough and What We Can Do to Help Them. The teen voices you heard during this segment were: Zion, Ro’Shell, LaRon, Aleathia, Zahriah, Trysten, Londyn, Jairus and Cix. All are 8th grade students at Manchester Academic Charter School, and recorded by SLB Radio at its Youth Media Center, in Pittsburgh Pennsylvania.

FDA Convenes Panel On COVID Boosters And New Vaccines This week, the FDA convened a panel of independent experts to discuss COVID-19 boosters and possible variant-specific vaccines. This comes after last week’s authorization of a second booster for people over the age of 50, and some immunocompromised people. Ira talks with Maggie Koerth, senior science writer at FiveThirtyEight, based in Minneapolis, Minnesota, about the latest on boosters and other science news of the week, including a new particle measurement that might shift our understanding of physics, fish who can do math and why Mars has two different speeds of sound.   Want To Get Your Spring Garden Going? Here’s Some Expert Advice In most parts of the U.S., it’s time to get the garden going for the year. From readying your soil to picking your plants and getting seeds started, April can require a lot of decision-making to set the stage for a successful growing season. Have questions about choosing containers, hardening your seedlings, or dealing with excess water? Our panel of expert gardeners is here for you. Ira talks to Cornell University Extension’s Elizabeth Buck and Oregon State University Extension’s Weston Miller about common spring troubleshooting, chemical-free pest management, and even how to brace your garden against climate change.

Can You Read A Bar Graph? Bar graphs seem like one of the simplest ways to represent data. Many people assume that the longer the bar, the bigger the number it represents. Sometimes bar graphs represent an average not a total count, which is trickier to understand. And because bar graphs are everywhere, psychologists from Wellesley College wanted to determine how well people can actually read and interpret bar graphs. Turns out, one in five people in their study misunderstood the data the bar graphs intended to show. And sometimes simple-looking graphs actually make it harder to understand the data they are based on. Ira talks with Jeremy Wilmer, associate professor, and Sarah Horan Kerns, research associate, at Wellesley College’s department of psychology, based in Wellesley Massachusetts about their bar graph research and curriculum to improve data literacy.   Scientists Release The First Fully Complete Human Genome Two decades ago, scientists announced they had sequenced the human genome. What you might not know is that there were gaps in that original sequence—about 8% was completely blank. Now, after a years-long global collaboration, scientists have finally released the first fully complete assembly of the human genome. Researchers believe these missing pieces might be the key to understanding how DNA varies between people. Six scientific papers on the topic were published in a special edition of the academic journal Science this week. Ira talks with Karen Miga and Adam Phillippy, co-founders of the Telomere to Telomere Consortium, an international effort that led to the assembly of this new fully complete human genome. Karen Miga is an assistant professor of bimolecular engineering and the associate director of the UC Santa Cruz Genomics Institute, based in Santa Cruz California. Adam Phillippy is head of the Genome Informatics Section and senior investigator in the computational and statistical genomics branch at the National Human Genome Research Institute at the National Institutes of Health, based in Bethesda, Maryland.   One Last Martian Love Fest After a month of non-stop Mars science, what questions do you still have about the Red Planet? SciFri producer Christie Taylor and co-host Stephanie Sendaula interview planetary scientist and Sirens of Mars author Sarah Stewart Johnson. Plus, they take your questions about the planet’s poles, its magnetic field, and the progress of the Perseverance rover.