Synopsis
Radiolab is a show about curiosity. Where sound illuminates ideas, and the boundaries blur between science, philosophy, and human experience.Radiolab is heard around the country on more than 500 member stations. Check your local station for airtimes.Embed the Radiolab widget on your blog or website.Radiolab is supported, in part, by the Alfred P. Sloan Foundation, enhancing public understanding of science and technology in the modern world. More information about Sloan at www.sloan.org.All press inquiries may be directed to Jennifer Houlihan Roussel at (646) 829-4497.
Episodes
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Killer Empathy
04/04/2025 Duration: 25minIn an episode first aired in 2012, Lulu Miller introduces us to Jeff Lockwood, a professor at the University of Wyoming, who spent a part of his career studying a particularly ferocious set of insects: Gryllacrididae. Or, as Jeff describes them, "crickets on steroids." They have crushingly strong, serrated jaws, and they launch all-out attacks on anyone who gets in their way--whether it's another cricket, or the guy trying to take them out of their cages.In order to work with the gryllacridids, Jeff had to figure out how to out-maneuver them. And as he devised ways to keep from getting slashed and bitten, he felt like he was getting to know them. Maybe they weren't just mindless brutes ... but their own creatures, each with their own sense of self. And that got him wondering: what could their fierceness tell him about the nature of violence? How well could he understand the minds of these insects, and what drove them to be so bloody?That's when the alarm bells went off. Jeff would picture his mentor, Dr. LaFa
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Malthusian Swerve
28/03/2025 Duration: 38minEarth can sustain life for another 100 million years, but can we?In this episode, we partnered with the team at Planet Money to take stock of the essential raw materials that enable us to live as we do here on Earth—everything from sand to copper to oil— and tally up how much we have left. Are we living with reckless abandon? And if so, is there even a way to stop? This week, we bring you a conversation that’s equal parts terrifying and fascinating, featuring bird poop, daredevil drivers, and some staggering back-of-the-envelope math.EPISODE CREDITS:Reported by - Jeff Guo and Latif NasserProduced by - Pat Walters and Soren Wheelerwith production help from - Sindhu Gnanasambandan and editing help from - Alex Goldmark and Jess JiangFact-checking by - Natalie Middleton Signup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!Radiolab is supported by listeners like you. Support Radiolab by becoming a
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Everybody's Got One
21/03/2025 Duration: 28minWe all think we know the story of pregnancy. Sperm meets egg, followed by nine months of nurturing, nesting, and quiet incubation. this story isn’t the nursery rhyme we think it is. In a way, it’s a struggle, almost like a tiny war. And right on the front lines of that battle is another major player on the stage of pregnancy that not a single person on the planet would be here without. An entirely new organ: the placenta.In this episode, which we originally released in 2021, we take you on a journey through the 270-day life of this weird, squishy, gelatinous orb, and discover that it is so much more than an organ. It’s a foreign invader. A piece of meat. A friend and parent. And it’s perhaps the most essential piece in the survival of our kind.Special thanks to Diana Bianchi, Julia Katz, Sam Behjati, Celia Bardwell-Jones, Mathilde Cohen, Hannah Ingraham, Pip Lipkin, and Molly Fassler.EPISODE CREDITS: Reported by - Heather Radke and Becca Bresslerwith help from - Molly WebsterProduced by - Becca Bresslerwith h
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Growth
14/03/2025 Duration: 58minIt’s easy to take growth for granted, for it to seem expected, inevitable even. Every person starts out as a baby and grows up. Plants grow from seeds into food. The economy grows. That stack of mail on your table grows. But why does anything grow the way that it does? In this hour, we go from the Alaska State Fair, to a kitchen in Berkeley, to the deep sea, to ancient India, to South Korea, and lots of places in between, to investigate this question, and uncover the many forces that drive growth, sometimes wondrous, sometimes terrifying, and sometimes surprisingly, unnervingly fragile.Special thanks to Elie Tanaka, Keith Devlin, Deven Patel, Chris Gole, James Raymo and Jessica SavageEPISODE CREDITS: Reported by - Matt Kielty, Becca Bressler, Pat Walters, Sindhu Gnanasambandun, Annie McEwen, Simon Adlerwith help from - Rae MondoProduced by - Matt Kielty, Becca Bressler, Pat Walters, Sindhu Gnanasambandun, Annie McEwen, Simon AdlerSound design contributed by - Jeremy Bloomwith mixing help from - Jeremy BloomFa
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More Perfect: Sex Appeal
07/03/2025 Duration: 58minIn 2017 our sister show, More Perfect aired an episode all about RBG, In September of 2020, we lost Supreme Court Justice Ruth Bader Ginsburg to the annals of history. She was 87. Given the atmosphere around reproductive rights, gender and law, we decided to re-air this More Perfect episode dedicated to one of her cases. Because it offers a unique portrait of how one person can make change in the world. This is the story of how Ginsburg, as a young lawyer at the ACLU, convinced an all-male Supreme Court to take discrimination against women seriously - using a case on discrimination against men. Special thanks to Stephen Wiesenfeld, Alison Keith, and Bob Darcy.Supreme Court archival audio comes from Oyez®, a free law project in collaboration with the Legal Information Institute at Cornell.EPISODE CREDITS: Reported by - Julia LongoriaProduced by - Julia LongoriaOriginal music and sound design contributed by - Alex OveringtonOur newsletter comes out every Wednesday. It includes short essays, recommendations, and
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Revenge of the Miasma
28/02/2025 Duration: 35minToday we uncover an invisible killer hidden, for over a hundred years, by reasonable disbelief. Science journalist extraordinaire Carl Zimmer tells us the story of a centuries-long battle of ideas that came to a head, with tragic consequences, in the very recent past. His latest book, called Airborne, details a largely forgotten history of science that never quite managed to get off the ground. Along the way, Carl helps us understand how we can fail, over and over again, to see a truth right in front of our faces. And how we finally came around thanks to scientific evidence hidden inside a song.EPISODE CREDITS:Reported by - Carl ZimmerProduced by - Sarah Qariwith mixing help from - Jeremy BloomFact-checking by - Natalie MiddletonEPISODE CITATIONS:Books - Check out Carl Zimmer’s new book, Airborne (https://zpr.io/Q5bdYrubcwE4).Articles - Read about the study on the Skagit Valley Chorale COVID superspreading event (https://pubmed.ncbi.nlm.nih.gov/32979298/).Signup for our newsletter!! It includes short essay
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The Immortal Life of Henrietta Lacks
21/02/2025 Duration: 34minToday, a story that starts small and private, with one woman alone in her bathroom, as she makes a quiet, startling discovery about her own body. But that small, private moment grows and grows, and pretty soon it becomes something so big that it has impacted the life of every person reading this right now… and all that without the woman ever even knowing the impact she had. We originally aired this story back in 2010, but we thought we’d bring it back today, as questions about bodily autonomy circle with renewed force.EPISODE CREDITS: Reported by - Rebecca SklootSignup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.Leadership support for Radiola
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Quantum Birds
14/02/2025 Duration: 34minAnnie McEwen went to a mountain in Pennsylvania to help catch some migratory owls. Then Scott Weidensaul peeled back the owl’s feathery face disc, so that she could look at the back of its eyeball. No owls were harmed in the process, but this brief glimpse into the inner workings of a bird sent her off on a journey to a place where fleshy animal business bumps into the mathematics of subatomic particles. With help from Henrik Mouristen, we hear how one of the biggest mysteries in biology might finally find an answer in the weird world of quantum mechanics, where the classical rules of space and time are upended, and electrons dance to the beat of an enormous invisible force field that surrounds our planet.A very special thanks to Rosy Tucker, Eric Snyder, Holly Merker, and Seth Benz at the Hog Island Audubon Camp. Thank you to the owl-tagging volunteers Chris Bortz, Cassie Bortz, and Cheryl Faust at Hawk Mountain Sanctuary. Thank you to Jeremy Bloom and Jim McEwen for helping with the owls. Thank you to Isabe
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Vertigogo
07/02/2025 Duration: 25minIn this episode, first aired in 2012, we have two stories of brains pushed off-course. We relive a surreal day in the life of a young researcher hijacked by her own brain, and hear from a librarian experiencing a bizarre and mysterious set of symptoms that she called “gravitational anarchy.”Special thanks to Sarah Montague and Ellen Horn, as well as actress Hope Davis, who read Rosemary Morton’s story. And the late Berton Roueché, who wrote that story down. EPISODE CREDITS: Produced by - Brenna FarrellOriginal music and sound design contributed by - Tim Howard and Douglas Smith EPISODE CITATIONS:Books - Berton Roueché’s story about Rosemary Morton,”Essentially Normal” first appeared in the New Yorker in 1958 and was later published by Dutton in a book called "The Medical Detectives."Signup for our newsletter. It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!Radiolab is supported by listeners like you. Support Radiolab
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Forever Fresh
31/01/2025 Duration: 28minWe eat apples in the summer and enjoy bananas in the winter. When we do this, we go against the natural order of life which is towards death and decay. What gives? This week, Latif Nasser spoke with Nicola Twilley, the author of Frostbite: How Refrigeration Changed Our Food, Our Planet, and Ourselves. Twilley spent over a decade reporting about how we keep food alive as it makes its way from the farm to our table. This conversation explores the science of cold, how fruits hold a secret to eternal youth, and how the salad bag, of all things, is our local grocery store’s unsung hero.Special thanks to Jim Lugg and Jeff WoosterEPISODE CREDITS: Reported by Latif Nasser and Nicola Twilleywith help from Maria Paz GutierrezProduced by Maria Paz GutierrezOriginal music from Jeremy BloomSound design contributed by Jeremy Bloomwith mixing help from Arianne WackFact-checking by Emily Krieger and Edited by Alex NeasonEPISODE CITATIONS:Articles New Yorker Article - How the Fridge Changed Flavor (https://zpr.io/32TuSmAc2Hb
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Nukes
24/01/2025 Duration: 52minIn an episode first reported in 2017, we bring you a look up and down the US nuclear chain of command to find out who gets to authorize their use and who can stand in the way of Armageddon. President Richard Nixon once boasted that at any moment he could pick up a telephone and - in 20 minutes - kill 60 million people. Such is the power of the US President over the nation’s nuclear arsenal. But what if you were the military officer on the receiving end of that phone call? Could you refuse the order?In this episode, we profile one Air Force Major who asked that question back in the 1970s and learn how the very act of asking it was so dangerous it derailed his career. We also pick up the question ourselves and pose it to veterans both high and low on the nuclear chain of command. Their responses reveal once and for all whether there are any legal checks and balances between us and a phone call for Armageddon.Special thanks to Elaine Scarry, Sam Kean, Ron Rosenbaum, Lisa Perry, Ryan Furtkamp, Robin Perry, Thom
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The Darkest Dark
17/01/2025 Duration: 26minWe fall down the looking glass with Sönke Johnsen, a biologist who finds himself staring at one of the darkest things on the planet. So dark, it’s almost like he’s holding a blackhole in his hands. On his quest to understand how something could possibly be that black, we enter worlds of towering microscopic forests, where gold becomes black, the deep sea meets the moon, and places that are empty suddenly become full. Corrections/Clarifications:In this episode, dragonfish are described as having teeth that slide back into their skull; that is the fangtooth fish, not the dragonfish. Though both can be ultra-black.The fishes described are the darkest things on the planet, but there are some other animals that are equally as dark, including butterflies, wasps, and birds.Vantablack is no longer the blackest man-made materialEPISODE CREDITS: Hosted by - Molly WebsterReported by - Molly WebsterProduced by - Rebecca Laks, Pat Walters, Molly Websterwith help from - Becca BresslerOriginal music from - Vetle Nærøwith mi
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Smarty Plants
10/01/2025 Duration: 34minIn an episode we first aired in 2018, we asked the question, do you really need a brain to sense the world around you? To remember? Or even learn? Well, it depends on who you ask. Jad and Robert, they are split on this one. Today, Robert drags Jad along on a parade for the surprising feats of brainless plants. Along with a home-inspection duo, a science writer, and some enterprising scientists at Princeton University, we dig into the work of evolutionary ecologist Monica Gagliano, who turns our brain-centered worldview on its head through a series of clever experiments that show plants doing things we never would've imagined. Can Robert get Jad to join the march?We have some exciting news! In the “Zoozve” episode, Radiolab named one of Venus's quasi-moons. Then, Radiolab teamed up with The International Astronomical Union to launch a global naming contest for one of Earth’s quasi-moons, so that you, our listeners, could help us name another, and we now have a winner!! Early next week, head over to https://rad
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Match Made in Marrow
03/01/2025 Duration: 01h01minIn an episode first reported in 2017, we bring you what may be, maybe the greatest gift one person could give to another. You never know what might happen when you sign up to donate bone marrow. You might save a life… or you might be magically transported across a cultural chasm and find yourself starring in a modern adaptation of the greatest story ever told.One day, without thinking much of it, Jennell Jenney swabbed her cheek and signed up to be a donor. Across the country, Jim Munroe desperately needed a miracle, a one-in-eight-million connection that would save him. It proved to be a match made in marrow, a bit of magic in the world that hadn’t been there before. But when Jennell and Jim had a heart-to-heart in his suburban Dallas backyard, they realized they had contradictory ideas about where that magic came from. Today, an allegory for how to walk through the world in a way that lets you be deeply different, but totally together. This piece was reported by Latif Nasser. It was produced by Annie McE
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Probing Where the Sun Does Shine: A Holiday Special
24/12/2024 Duration: 25minThis holiday season, we want to take you on a trip around the heavens.First, co-host Latif Nasser, with the help of Nour Raouafi, of NASA, and an edge-cutting piece of equipment, explain how we may finally be making good on Icarus’s promise. Then, co-host Lulu Miller and Ada Limón talk about how a poet laureate goes about writing an ode to one of Jupiter’s moons.And one more thing! It is almost your last chance to make your mark on the heavens. Radiolab and The International Astronomical Union’s Quasi Moon Naming Vote comes to an end on January 1st. Learn more and pick your favorite name here: https://radiolab.org/moonEPISODE CREDITS: Reported by - Latif Nasser, Lulu MillerProduced by - Matt Kielty, Ana GonzalezFact-checking by - Diane KellySignup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://m
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Curiosity Killed the Adage
20/12/2024 Duration: 47minThe early bird gets the worm. What goes around, comes around. It’s always darkest just before dawn. We carry these little nuggets of wisdom—these adages—with us, deep in our psyche. But recently we started wondering: are they true? Like, objectively, scientifically, provably true?So we picked a few and set out to fact check them. We talked to psychologists, neuroscientists, runners, a real estate agent, skateboarders, an ornithologist, a sociologist and an astrophysicist, among others, and we learned that these seemingly simple, clear-cut statements about us and our world, contain whole universes of beautiful, vexing complexity and deeper, stranger bits of wisdom than we ever imagined.Special thanks to Pamela D’Arc, Daniela Murcillo, Amanda Breen, Akmal Tajihan, Patrick Keene, Stephanie Leschek and Alexandria Iona from the Upright Citizens Brigade, We Run Uptown, Coaches Reph and Patty from Circa ‘95, Julia Lucas and Coffey from the Noname marathon training program.We have some exciting news! In the “Zoozve
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Dark Side of the Earth
13/12/2024 Duration: 24minBack in 2012, when we were putting together our live show In the Dark, Jad and Robert called up Dave Wolf to ask him if he had any stories about darkness. And boy, did he. Dave told us two stories that became the finale of our show.Back in late 1997, Dave Wolf was on his first spacewalk, to perform work on the Mir (the photo to the right was taken during that mission, courtesy of NASA.). Dave wasn't alone -- with him was veteran Russian cosmonaut Anatoly Solovyev. (That's a picture of Dave giving Anatoly a hug on board the Mir, also courtesy of NASA).Out in blackness of space, the contrast between light and dark is almost unimaginably extreme -- every 45 minutes, you plunge between absolute darkness on the night-side of Earth, and blazing light as the sun screams into view. Dave and Anatoly were tethered to the spacecraft, traveling 5 miles per second. That's 16 times faster than we travel on Earth's surface as it rotates -- so as they orbited, they experienced 16 nights and 16 days for every Earth day.Dave's
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How Stockholm Stuck
06/12/2024 Duration: 01h04minIn August of 1973, Jan-Erik Olsson walked into the lobby of a bank in central Stockholm. He fired his submachine gun at the ceiling and yelled “The party starts now!” Then he started taking hostages. For the next six days, Swedish police and international media would tie themselves in knots trying to understand what seemed to them a sordid attachment between captor and captives. And this fixation, later pathologized as “Stockholm Syndrome,” would soon spread across the globe, becoming an easy, often flippant explanation for why people—especially women—in crisis behave in ways outsiders can’t understand. But what if we got the origin story wrong?Today on Radiolab, we reexamine that week in 1973 and the earworm heard ‘round the world. Is “Stockholm Syndrome” just pop psychology built on a pile of lies? Or does it hold some kernel of truth that could help all of us better understand inexplicable trauma?Special thanks to David Mandel, Ruth Reymundo Mandel, Frank Ochberg, Terence Mickey, Cara Pellegrini, Kathy Yue
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Less Than Kilogram
29/11/2024 Duration: 24minIn today’s story, which originally aired in 2014, we meet a very special cylinder. It's the gold standard (or, in this case, the platinum-iridium standard) for measuring mass. For decades it's been coddled and cared for and treated like a tiny king. But, as we learn from writer Andrew Marantz, things change—even things that were specifically designed to stay the same.Special thanks to Ken Alder, Ari Adland, Eric Perlmutter, Terry Quinn and Richard Davis.And to the musical group, His Majestys Sagbutts & Cornetts, for the use of their song “Horses and Hounds.”We have some exciting news! In the “Zoozve” episode, Radiolab named its first-ever quasi-moon, and now it's your turn! Radiolab has teamed up with The International Astronomical Union to launch a global naming contest for one of Earth’s quasi-moons. This is your chance to make your mark on the heavens. Vote on your favorites soon, check here for details: https://radiolab.org/moonSign-up for our newsletter!! It includes short essays, recommendations, an
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Science Vs: The Funniest Joke in the World
22/11/2024 Duration: 42minWhen he rounded them up, he had a 100.A few months ago, Wendy Zukerman invited our own Latif Nasser to come on her show, and, of course, he jumped at the chance. Laughter ensued, as they set off to find the "The Funniest Joke in the World." When you just Google something like that, the internet might serve you, "What has many keys but can't open a single lock??” (Answer: A piano). So they had to dig deeper. According to science. And for this quest they interviewed a bunch of amazing comics including Tig Notaro, Adam Conover, Dr Jason Leong, Loni Love, and, of course, some scientists: Neuroscientist Professor Sophie Scott and Psychologist Professor Richard Wiseman. Which Joke Will Win???Special thanks to Wendy Zuckerman and the entire team over at Science VsWe have some exciting news! In the “Zoozve” episode, Radiolab named its first-ever quasi-moon, and now it's your turn! Radiolab has teamed up with The International Astronomical Union to launch a global naming contest for one of Earth’s quasi-moons. This is