Short Wave

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• When batteries get a facelift, so does renewable energy

  Sep 16, 2026 · 13:29

  For years, renewable energy companies have faced a problem: How to store the mass amounts of energy they produce for later use. Batteries may be just the solution. In California, there's now enough grid-scale battery storage to power millions of homes for a few hours. Battery power is often the second largest source of energy on a given day in the state. So, we're revisiting the fast-growing technology with Cooper Katz McKim, a producer on The Indicator from Planet Money. Listen to the three-part battery series. Have questions about the future of energy? Contact us at shortwave@npr.org.  Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Why you'll probably be misdiagnosed in your lifetime

  Sep 15, 2026 · 13:25

  Nearly every person will experience at least one diagnostic error in their lifetime. That means either a delayed diagnosis, a wrong diagnosis – or no diagnosis at all. That’s according to a report by the National Academies of Sciences, Engineering and Medicine from 2015 on diagnostic error. Today on the show we talk to a physician who was personally affected by the crisis, and New York Times editor and author of the book The Elusive Body: Patients, Doctors and the Diagnosis Crisis. If you liked this episode, check out these other episodes:- How science is taking tripping mainstream- What If You Took The "Trip" Out Of Ketamine?- Could Psychedelics Become Tripless?- The Reality Of OCD Interested in more medical science? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Should race affect BMI guidelines? Doctors are split

  Sep 14, 2026 · 13:47

  BMI is a quick, cheap way for doctors to estimate body fat and screen for conditions like heart disease and diabetes. But medicine has long known that BMI is problematic and unnuanced. By using it, groups of people have fallen through the cracks and conditions have been caught late. So, some doctors want to add nuance – to consider race when using BMI. But using race in medicine comes with its own problems. So what’s the way forward? To find out, we talk to Katie Wu, a science writer at The Atlantic. Read more of Katie’s reporting on BMI and race. Interested in more science health stories? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How scientists discovered that animals are doctors, too

  Sep 11, 2026 · 13:24

  When people are sick, we seek out medications and treatments to help heal. For a long time, scientists thought that was a uniquely human ability. But it turns out, many other animals do a version of it too! And since the late 1980s, western researchers have been trying to get a peek behind the curtain. And aside from just cataloguing all the cool examples just to know, there’s a real hope that studying animals’ medical cabinets may be the most promising way to expand our own. We get into the weeds with freelance science journalist Mandy Nguyen. Interested in more animal stories? Email us your ideas and questions to explore at shortwave@npr.org. They may become a future episode! Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Lindsay Clancy and postpartum psychosis

  Sep 9, 2026 · 14:10

  The trial around Lindsay Clancy may be over for now, but it still leaves us with questions. On today’s episode, we talk to psychiatrists and patients to answer them: What is postpartum psychosis, exactly? Why don’t we know more about it? And what can you do if you are worried about a postpartum loved one? Interested in more stories on mental health? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How hurricanes triggered lizard evolution

  Sep 8, 2026 · 11:28

  Hurricane season is upon us and it turns out that these powerful storms can quickly affect the biology of animals. After hurricanes Irma and Maria hit the islands that make up Turks and Caicos about a decade ago, the silver key anole adapted. They now have a shorter fourth toe on their hind legs! That could help them cling to objects better. But how do you know unless you put lizards in front of a fan and record how long they can hold on? This study is out now in the journal Current Biology. Interested in more science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• When is your brain actually 'adult'?

  Sep 7, 2026 · 13:54

  Summer is winding down and school is back. And all of that has us thinking about this idea that something happens in the human brain when we turn 25. Suddenly, we can rent a car without fees. Make rational decisions. We may even regret some of our past… indiscretions. All because we’re developed…right? Well, a paper in the journal Nature suggests that may not be the case. Neuroscientists found four distinct turning points in brain development across the human lifespan – and that the brain may be in its “adolescent” phase until about the age of 32. (Encore episode) Interested in more of the science inside your brain? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.This episode was produced by Rachel Carlson. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Kwesi Lee. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• A new investigation shows heat is even deadlier than we thought

  Sep 4, 2026 · 14:45

  Hot weather isn’t just an inconvenience. It’s killing thousands more Americans than show up in official records. That’s the finding from a new NPR investigation, in partnership with Boston University. And the way they came up with that new, better estimate of the true toll of heat is, of course, with science. This episode, we’ll bring you all the details – and chat about why getting good estimates could save lives. Interested in more science-based investigations? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• The science of emotional regulation — and how to do it better

  Sep 2, 2026 · 12:29

  Do you ever feel like your emotions control you instead of you controlling them? Maybe you lash out at someone after a long day at work or indulge to avoid a stressful situation. It’s called emotional dysregulation and don’t worry – we all experience it at some point. Luckily, there’s a better way of dealing with our feelings: building emotional intelligence. That may seem daunting, but Short Wave is here to guide you through everything from understanding the importance of emotions to how we can repair our relationship to them. Interested in learning more about your brain and your feelings? Email us your question at shortwave@npr.org. We might cover it in a future episode! Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• What can seashells teach us about the health of our oceans?

  Sep 1, 2026 · 13:10

  Seashells: They're beautiful remnants to carry home from the beach—and so much more! According to environmental journalist Cynthia Barnett, seashells record history more accurately than the humans who first wrote it down. In this episode, we talk about the science of seashells, their impact on humankind and the scientist behind a very famous tongue twister. Check out Cynthia’s book The Sound of the Sea and check out Emily’s reporting on sandcastles. Interested in more marine biology stories? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s hperks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Football is here – and so is a new study on CTE

  Aug 31, 2026 · 15:01

  The NFL season begins this week, but America’s favorite sport has been on our minds for other reasons recently. New research released in the journal BMJ reveals that 1 in 4 former NFL players in this sample had CTE, a neurodegenerative brain disease caused by repetitive head injuries. Past studies already showed that football players are at high risk for CTE, but this study – which assessed ex-NFL players who died from 2016 to 2021 – revealed that at least a quarter of those former players died with CTE, and the study’s lead author says the actual numbers are likely higher. What does that mean for players (and fans) of American football? Short Wave host Nate Rott and NPR sports correspondent Becky Sullivan find out. If you liked this episode, check out our episode on the brain injuries caused by operating blast weapons. Interested in more sports science? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• NASA's newest telescope has a top secret past

  Aug 28, 2026 · 13:31

  The new Nancy Grace Roman space telescope is slated to launch this weekend. It was originally built for the National Reconnaissance Office as a spy satellite, but was never launched. Instead, NRO gave it to NASA about 15 years ago. After some major modifications, it’s set to begin its five-year mission peering at new supernovas, distant galaxies and planets orbiting stars outside our solar system. It should help scientists get a better understanding of the mysterious force known as dark energy – which will tell us about the fate of the universe. If you liked this episode, check out Regina’s reporting demystifying the mysterious red dots spotted by the James Webb Space Telescope. Interested in more space news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How your metabolism could alter your mental health

  Aug 26, 2026 · 12:28

  In 2009, medical student Shebani Sethi watched a patient in a weight loss program make a remarkable recovery. The dietary intervention she underwent alleviated her schizophrenia symptoms, something the woman had tried – and failed – to treat with medication for years. That experience sent Shebani down a medical path that would lead her to treating mental health in a radically different way. Today host Emily Kwong talks to Shebani about the emerging field of metabolic psychiatry and how ketogenic metabolic therapy may treat schizophrenia, bipolar disorder and depression. Read Shebani’s article on metabolic psychiatry here. Interested in more lifestyle science? Email us your question at shortwave@npr.org. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• AI-made viruses could be the future of medicine

  Aug 25, 2026 · 11:35

  The era of AI-generated viruses is here. Some scientists are using AI to design viruses that can attack bacteria. The hope is that these tailor-made viruses can fight drug-resistant bacterial infections in people. And longer-term, Brian Hie, the Stanford researcher spearheading this project, hopes that AI can help create more complicated biological systems to treat formidable diseases. But some experts warn that placed in the wrong hands, this technology could create the next pandemic.  Interested in more AI-related research? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How much has the U.S.’s wildlife changed since Lewis and Clark?

  Aug 24, 2026 · 14:00

  Ever wish you could have been part of the Lewis and Clark expedition? Us too. The Corps of Discovery came across scores of plants and animals that were new to Western science: Grizzly bears, ponderosa pines, a “barking squirrel” that William Clark would later call the prairie dog. A modern effort is underway to see how much the country’s wildlife has changed in the 220-some years since their journey. Host Nate Rott tags along with some scientists re-surveying a part of the expedition’s route in western Montana. And he wishes he was in better shape. Interested in more science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Why scientists are stoked about mysterious black hole stars

  Aug 21, 2026 · 12:14

  You've heard of black holes. You've heard of stars. But have you heard of the newly discovered black hole stars that may explain multiple mysteries of the universe? We just did and we're honestly freaking out about it. Learn everything you need to know about it in this episode. Plus, hear some other cool stories fresh off the presses: Which exercise can help reduce your risk of dementia and how shrews shrink — and then regrow — parts of their body throughout the year. Interested in hearing more reporting on space, scientific mysteries or other emerging science? We want to know! Email us what you'd like us to talk about at shortwave@npr.org! Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• More men are taking testosterone. What gives?

  Aug 19, 2026 · 14:51

  If you’re a guy – or even just friends with a guy – and on the Internet, you may have noticed that testosterone discourse is everywhere. There’s Defense Secretary Pete Hegseth announcing testosterone screenings for soldiers, Joe Rogan discussing hormone therapy, and influencers discussing high- and low-T levels. Those levels affect more than just sex. They also affect metabolism, bone health, muscle mass, red blood cell production and brain function. NPR science reporter Will Stone took a deep dive into it all: What deficiency looks like in men, what doctors recommend and what the research says about who actually needs testosterone replacement therapy. Interested in hearing more reporting on popular science topics? Email us what you’d like us to cover at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• A survivor's view from inside a tornado

  Aug 18, 2026 · 12:26

  What’s the dumbest thing Perry Samson says he’s ever done? Getting caught inside a tornado.  But when you’re an atmospheric scientist who studies supercell thunderstorms—with a special interest in the ones that cause tornadoes—that sort of thing is a bit of an occupational hazard. Lucky for Perry, he also made a split-second decision while in the tornado that may be the smartest thing he’s ever done. So today on the show: What we can learn from nature at its wildest. Interested in more science behind the weather? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Could future wars be fought by AI?

  Aug 17, 2026 · 14:58

  This year, the Department of Defense announced that they’d entered agreements with eight artificial intelligence companies. It follows decades of popular media exploring the idea of artificial intelligence in war – from the computer threatening global thermonuclear conflict in the movie WarGames to the Skynet neural net in Terminator. In 2026, when Anthropic’s Claude and OpenAI’s ChatGPT are just a click away, the concept of AI-supported war is suddenly much closer to reality. So what does it really mean for militaries to use AI? And what are the potential implications if they succeed? Short Wave producer Hannah Chinn reports. Listen to the whole Tech Camp series.  Interested in more military science and/or tech episodes? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Inside Colombia's big quake – and why more could be coming

  Aug 14, 2026 · 12:12

  The 7.4 magnitude earthquake that struck Colombia was devastating. Host Regina Barber talks to earthquake geologist Rodrigo Alejandro Leon Loya about the tectonic plates that caused the quake and what it was like 150 miles from the epicenter.  Interested in more science in the news? Email us your question at shortwave@npr.org.    Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How to see the year's best meteor shower tonight

  Aug 13, 2026 · 12:28

  Right now the best shooting star show of the year is happening: the peak of the Perseid meteor shower. People have been viewing this annual event pretty much as long as we’ve been recording history. But what are we really looking at when we gaze up to see these faint streaks of light shoot across the sky? And what can you do to get the best view of them?  We dive into those questions on this edition of Spacing Out, which also gets into the latest news about the Sun and the tea behind the SpaceX rocket crashing into the moon. Interested in more space news? Let us know! Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Can you spot AI-written stories? Listen and find out

  Aug 12, 2026 · 12:16

  Can you tell the difference between a human-written short story and an AI-generated one? Most people can’t. In a series of experiments led by a team at Villanova University, researchers found two things: First, most people said they preferred human written stories, but couldn’t tell the difference between AI and human writing; and second, when presented with two similar short stories, one written by a human and one generated by AI, readers tended to prefer the AI-generated piece – especially if they had been told the AI story was written by a human. We excerpted two of the short stories on our website for you to guess which is AI-generated and which is human-generated. Check out the full set of stories here. Interested in more science and technology news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How to see this week's eclipse (and the next big one)

  Aug 11, 2026 · 12:04

  During a total solar eclipse the world around you is very different. The sun gets totally blotted out and suddenly, it feels like night time. The temperature drops. Birds stop singing. These surreal celestial events happen every year or so around the globe – including tomorrow. To get you prepped, we’re talking to eclipse chasers about what makes these few minutes of darkness worthwhile and break down how to view an eclipse. That includes using special specs, so we’re linking the American Astronomical Society’s list of trustworthy eclipse glasses.  To nerd out even more, check out NASA’s eclipse website. Interested in more space news? Email us your question at shortwave@npr.org and we may cover it in an upcoming segment. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Mirror cells could threaten life on Earth. Why are we building them?

  Aug 10, 2026 · 14:02

  For people with two hands, one is usually dominant. On a molecular level, earthly life takes this to the extreme. All of the DNA in living things twists to the right, whereas the protein building blocks favor a kind of left-handed chemistry. The rules of life are based on this chemistry. In recent years, scientists have worked toward a kind of mirror version of life. Currently, the technology doesn't exist to make mirror life at the cellular level — and likely won't for at least a decade. Still, a group of scientists is concerned enough about the possibility that they've published a 299-page technical report calling for a stop to the science. In this encore episode for our Tech Camp series, host Regina Barber talks to Carl Zimmer, a science reporter at The New York Times, about his reporting on mirror cells — and why creating them could lead to devastating consequences for life on Earth. Check out Carl's full article. Curious about other controversial research? Email us at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• The Midnight Rebellion: Almost Midnight

  Aug 8, 2026 · 17:09

  WBUR’s The Midnight Rebellion is a one-of-a-kind podcast: a “choose your own”-style show set 100 years in the future when the climate has gone haywire, and it’s up to you to save the planet. Rooted in science, this fictional adventure was created for kids and grown-ups alike.  Each chapter ends with a choice. You decide what’s next. Choose wisely. Listen to the rest and follow The Midnight Rebellion wherever you get your podcasts. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• The red flags that may be hiding in your poop

  Aug 7, 2026 · 12:36

  When’s the last time you looked at your poop? Dr. Trisha Pasricha says you should look every time because it could save your life. A change in bowel habits is the number one indicator someone might have colon cancer, a disease on the rise in people under 50 in the United States. Host Regina Barber gets into what’s driving this trend with Trisha; plus, some shapes and colors you should keep an eye out for (did you know silver poop is a thing sometimes?).  If you liked this episode, check out our first episode with Dr. Trisha: Are you pooping all wrong? Interested in more science health news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Shooting stars are just pea-sized rocks... and other space wonders

  Aug 5, 2026 · 11:40

  Ahead of the peak of the Perseid meteor shower, we're re-airing our first episode with host Regina G. Barber. In it, Regina and planetary scientist Melissa Rice explore all things shooting stars. They talk about the different types, where they come from and what they actually are (hint: not stars). Learn more about viewing the Perseids, which will peak Aug. 12: A Perfect Year for the Perseid Meteor Shower Interested in more stellar science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• More food and money, less disease: Senegal's surprising eco-experiment

  Aug 4, 2026 · 13:30

  In Senegal, rice farmers are trying to kill three birds with one stone – er, fish. Rice and fish are already a natural combination; they’re even the main ingredients of thieboudienne, the delicious national dish. But could that combination also reduce a debilitating disease, boost food security AND help farmers make more money? A team of researchers are conducting an ambitious experiment to see whether growing rice and fish together can be a win-win-win for Senegal, and NPR’s Jonathan Lambert came along for the ride. Interested in more science-based biological solutions? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• The new era of AI-powered cybercrime

  Aug 3, 2026 · 12:28

  Hacking has been on the rise around the world. In 2025, the FBI’s Internet Crime Complaint Center received over 1 million complaints of cybercrime, a record high in the US. Hackers are always getting more creative, and now they have a new tool at their disposal: AI.  Interested in more tech in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Want to spend a year living in NASA's Mars simulation?

  Jul 31, 2026 · 12:07

  Have you ever wanted to be an astronaut without risking your life in space? If so, we have the perfect opportunity for you. NASA is calling for people with a science background to apply for a simulated mission to the Moon and Mars. Four adults will spend a year isolated in two enclosures meant to simulate both traveling through deep space and living on Mars. Learn whether you fit the profile and what NASA researchers hope to learn from the mission in this episode. Interested in more space news? Email us your question at shortwave@npr.org and we may cover it in an upcoming segment. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Are extreme wildfires the new normal?

  Jul 29, 2026 · 13:21

  With parts of the U.S, Canada, Spain and France all ablaze with wildfires, you might be wondering: Are wildfires on the rise? If so, know that you mind-melded with the entire Short Wave staff. We had the exact same thought – and then went down some reporting rabbit holes and turned it into a whole episode. And let us just say: The answer is surprisingly complicated! But don’t you worry. We get into all the nuances this episode. Interested in more science behind the headlines? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• A cooler of eggs and a bold plan to save leopard sharks

  Jul 28, 2026 · 13:40

  Leopard sharks have nearly vanished from the waters in Raja Ampat, Indonesia. The country is one of the largest shark fishing nations in the world. Now, a first-of-its-kind conservation project is working to bring Indo-Pacific leopard sharks back from the brink of extinction. This international project hatches their eggs and raises shark pups to rewild them into the ocean where they once thrived. Will it be enough? For answers, we talk to freelance journalist Katerina Barton. She takes us behind-the-scenes to a shark nursery and shares what this conservation project could mean for other shark species. Interested in more conservation news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Could this nasal spray replace all your vaccines one day?

  Jul 27, 2026 · 10:25

  There’s the flu vaccine. The covid shot. The RSV shot… What if all of these—and more—could be combined into one universal vaccine? That’s what immunologist Bali Pulendran is working on in his lab. For this episode in our Tech Camp series, Regina G. Barber talks to him about how far he’s gotten, how far he has to go and why our ancient immune system is the key to it all. Plus they discuss how the vaccine may not be a shot at all—but a needle-free nasal spray.  Sources: Mucosal vaccination in mice provides protection from diverse respiratory threatsNon-specific effects of BCG vaccine on viral infections Interested in more science of the future? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• The problem with modern avocados — and the ancient solution

  Jul 24, 2026 · 9:33

  Did you know that when you pick up avocados at the supermarket, make avocado toast at home or order guacamole in your burrito, you’re probably consuming only one genetic type of avocado? Yep, it’s the Hass avocado. Since it originated in California in the 20th century, it’s been grafted onto trees worldwide. And today, it makes up more than 80 percent of commercial avocado production. Its bounty is a double-edged sword: It makes our avocados consistent; it also makes them susceptible to threats like new diseases and climate problems. In other words, we’re putting all of our eggs – er, avocados – in one basket. This episode, we get the inside scoop on new research that could help shore up the avocado’s chances at a long, more genetically diverse future. That way, avocados and their lovers alike can continue to thrive in the future. Read the research paper here. Interested in more plant anthropology science? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Does the science of peptides live up to the hype?

  Jul 22, 2026 · 12:52

  Synthetic peptides are getting some serious hype, from fitness influencers on your FYP to people seeking new options for chronic conditions. And while the human body already makes peptides, like insulin and the hormone oxytocin, most of the viral synthetic peptides are not approved by the Food and Drug Administration. Scientists say that raises some big concerns about safety and efficacy. So ahead of this week’s FDA meeting to discuss seven commonly used peptides, we get into the science with health reporter Sarah Boden. Interested in more science behind health trends? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Cyclosporiasis: the science, risks and red flags

  Jul 21, 2026 · 10:36

  What’s small, round and could give you explosive diarrhea? Cyclospora parasites. The diarrheal disease they cause is wreaking havoc on thousands this summer in what is the largest known flare up in the U.S. ever. What’s causing it and what can we do about it? NPR’s Joseph Kim joins host Nate Rott to talk about the outbreak – and how to protect yourself and your loved ones. Read more of Joseph’s reporting on cyclosporiasis here.  Interested in more science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Are Trump and AI driving a nuclear power boom?

  Jul 20, 2026 · 13:46

  A race started by President Trump is leading to the rapid construction of new, experimental nuclear reactors. If they work, they could power data centers for artificial intelligence. But critics worry that the breakneck pace is compromising safety and public trust. NPR correspondent Geoff Brumfiel talks about the potential risks and benefits, and whether this may lead to a new nuclear age. Read more of Geoff’s coverage of the U.S.’s new nuclear reactors here. If you like this episode, check out our episode about what happens inside a top-secret U.S. nuclear facility? Interested in more science and tech news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Why did designing the World Cup pitches take eight years?

  Jul 17, 2026 · 13:21

  Yamal and Messi aren’t the only stars of the World Cup finals. If you’ve been watching any of the games, you’ve probably stared directly at a huge, unsung hero: the turf. Turf grass science is a real thing, and it’s John Sorochan’s area of expertise. He’s a scientist at the University of Tennessee at Knoxville, and he’s spent the last eight years preparing for the grass pitch the players are scoring on. John had the daunting task of figuring out how to create consistency and uniformity across all the World Cup stadiums. That meant dozens of team base camps and 16 different stadiums where turf had to weather all kinds of conditions – from Mexico City’s high altitude, to Miami’s sweltering heat. Today on Short Wave, we dive into the science behind it all.  Interested in more science behind your favorite sports? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Our favorite brains, including Einstein's stolen one

  Jul 15, 2026 · 13:52

  At Short Wave, we love a good brain. Which is why we’ve had a lot of conversations over the years with NPR’s neuroscience reporter, Jon Hamilton. Jon’s been writing about brains for over 15 years, from tiny brain organoids that grow in a dish, to fruit fly brains, mouse brains and some really memorable human brains. But Jon is retiring, so today on the show he joins us to share the most memorable brains he’s come across in the past couple of decades.  Interested in more brain science? Email us your question at shortwave@npr.org. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• What's this super-aging butterfly’s longevity secret?

  Jul 14, 2026 · 13:18

  What if there were a great ape species that could live over 1,000 years? That’s basically Heliconius in the butterfly world. The insects live around 25 times longer than their butterfly cousins, and scientists think they have one clue as to why: pollen. But as Katie Wu, a science writer at The Atlantic, explains, that’s not the whole story. She and host Nate Rott also talk about how bats sip from the fountain of youth – and what it all may mean for humans. Read Katie's full story here. If you liked this episode, check out our episode on a pill that could extend dogs’ lives…and maybe yours someday.  Interested in more science about aging? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• How should we decide who, or what, is conscious?

  Jul 13, 2026 · 13:06

  In the age of AI, what differentiates humans from robots? What makes humans … human? To find answers, many people are studying consciousness: our capacity for experience. But doctors and researchers still have a long way to go when it comes to finding new ways to detect consciousness in humans — much less computer software. That gets especially tricky when people are unable to use their words or bodies to tell others whether or not they’re conscious, like in vegetative states. Today on Short Wave, how some researchers are finding ways to get around those limitations.   Interested in more tech episodes? Email us your question at shortwave@npr.org. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Plot twist: We're probably way undercounting insects on Earth

  Jul 10, 2026 · 9:28

  Maybe you’ve wondered about it late at night as a mosquito buzzes in your ear. Or when you kick over a rock and watch dozens of little critters crawl away: How many types of insects are there in the world? Scientists have been interested in answering this question for years. A new study — based on a census of tiny and, frankly terrifying, parasitoid wasps — suggests there’s way more than previously thought. Like, millions more that are just waiting to be discovered.   Interested in more bug science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• NASA's race against time to rescue a falling satellite

  Jul 8, 2026 · 11:27

  A valuable NASA satellite observatory is falling to Earth faster than scientists expected. It’s called the Neil Gehrels Swift Observatory, or “Swift” for short, and it can respond to celestial events much faster than its sky-gazing counterparts. To save Swift and test out a first-of-its-kind technology, NASA partnered with an Arizona-based startup to launch a refrigerator-sized robot, aptly named Link, into lower Earth orbit. That’s on its way right now to meet up with Swift to give it a boost. Interested in more science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Could this anti-aging dog pill lead to one for you too?

  Jul 7, 2026 · 11:23

  Every dog lover’s greatest fear is inevitably losing their pet to time. We want our furry pals to stick around as long as they can. That wish may soon become reality with a new pill from a company called Loyal. It aims to extend the lives–and health–of dogs. This new drug also serves as a pitstop on a much bigger quest: to eventually lengthen human lives. Interested in more science about your pets? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Sky Uber? Air taxis could be here soon

  Jul 6, 2026 · 14:05

  Taking an air taxi to the airport may become as simple as ordering a ride share today. In our first episode in our summer series Tech Camp, we explore how a futuristic vehicle that transforms from helicopter to propeller plane is already taking flight in New York and San Francisco. This new kind of commuting might be here sooner than you think: A law just went into effect to build infrastructure for them in places like airports. Short Wave host Regina Barber speaks with the startup Joby and Georgia Tech aerospace experts about the safety, the science and what an actual ride would look like from app to air. Plus, we get into the history of the air taxis of the past and why those airlines no longer exist. Interested in more tech episodes? Email us your question at shortwave@npr.org. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• This July 4th, are you a thrill- or chill-seeker?

  Jul 3, 2026 · 13:19

  Independence Day is approaching! Imagine if someone has procured illegal fireworks from a couple of states over. Are you: 1. first in line to light them? 2. content to watch while others set them off? 3. going to find a fire extinguisher — just in case — while loudly condemning the activity? Ken Carter, a psychologist at Oxford College of Emory University, says everyone has a different level of sensation-seeking. This episode, we get into the factors at play, like people's brain chemistry, when deciding whether or not to do an activity, like setting off fireworks. For low and average sensation-seekers, very thrilling activities like large, self-run fireworks displays can cause their bodies to produce a lot of cortisol, a stress hormone. On the other hand, high sensation-seekers, Carter says, "don't tend to produce that much cortisol when they're in those highly chaotic experiences. So when they're seeing those fireworks, they actually produce higher amounts of another chemical called dopamine, which is a neurotransmitter or a chemical messenger that's involved in pleasure." Carter has developed a 40-point self-assessment survey for people to figure out how much of a sensation-seeker they are. The survey can be found in his book, Buzz! Interested in more psychology episodes? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Is setting your trash on fire a good idea?

  Jul 1, 2026 · 14:01

  The U.S. generates 292 million tons of trash each year – and that trash has to go somewhere.  Sometimes, that’s to an incinerator, where it’s burned and turned into electricity. Proponents of incineration applaud the ability to generate energy from waste and divert garbage from landfills. Opponents worry about the potential health risks, especially to minoritized communities. Today on the show, we explore the good and the bad of waste-to-energy facilities – and even get to see one up close. Interested in more deep dives into the often invisible science powering our lives? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org.  See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Ticks are a growing problem, no matter where you live

  Jun 30, 2026 · 13:14

  In the grand scheme of things, Lyme disease is a fairly new scientific discovery. It was first traced back to ticks in the late 70s and early 80s. The tick-borne illness can cause a rash, fever, pain, neurological complications, and even facial paralysis. It’s spread by only two of the nearly 50 species of ticks in the United States. Historically, most Lyme cases were limited to a small region, including the Great Lakes area and northeastern US. But thanks to changing temperatures, animal migration and shifts in land use, scientists say tick territory is expanding. So what does that mean for Lyme disease risk? And do you have to be worried about it in your own backyard? Interested in more episodes about pests and parasites? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Is working from home actually good for you?

  Jun 29, 2026 · 13:46

  For many, being able to work from home is a boon: saving time on your commute, working in your sweatpants, throwing in a load of laundry before a meeting. People say it makes them happier. But a new study suggests that, despite all the advantages, working from home isn’t creating a happier workforce. It’s making people more socially isolated. We get into all the details with NPR mental health correspondent Rhitu Chatterjee. Interested in more everyday science? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

• Salty Clouds aren’t the only strange thing about this object in space

  Jun 26, 2026 · 9:29

  There’s an object in space 25 times the size of Jupiter that’s stumped scientists for years. They haven’t been able to figure out if it’s a planet or a failed star. But scientists are one step closer to an answer thanks to the powerful James Webb Space Telescope. After analyzing data collected by the telescope, astronomers have uncovered unexpected new clues floating light years away from us: Salty clouds sitting in space as hot as some home ovens. And if this mystery isn’t enough, we have more to look forward to in this episode, including insights into the evolution of laughter and the burials of ancient human relatives.  Interested in more science in the news? Email us your question at shortwave@npr.org. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. It includes perks like bonus episodes, early access, archive access, curated playlists and sponsor-free listening. Learn more at plus.npr.org. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy