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PODCAST

Short Wave

New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It"s science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you"re hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave

science life sciences

All Episodes

13:05

Screen time is up for grandma and grandpa

Short Wave ·

2026/02/25

Folks over 65 are putting in a lot of screen time. In 2019, the Pew Research Center found that people 60 years and older spend more than half their daily leisure time in front of screens, mostly watching TV or videos. Since the pandemic, that screen time has increased. Is addiction on the rise? And what’s the best use of screen time for any of us? We’re parsing out all the questions with Ipsit Vahia, the Chief of Geriatric Psychiatry at McLean Hospital. Interested in more stories about how

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12:55

Could our trash become local fishes’ treasure?

Short Wave ·

2026/02/24

Helicopters. Cargo containers. Old washing machines. For years, fishermen dumped this waste into the Gulf of Mexico. But they weren’t just trying to get rid of junk; they were trying to create artificial reefs that would help attract fish. For this month’s Nature Quest, WWNO coastal reporter Eva Tesfaye takes a (metaphorical) dive into the gulf to find out if Alabama’s ocean junkyard is an economic – and environmental – solution.Want to learn more about artificial reefs? Check out WWNO's podcast Sea

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12:13

The serious hunt for alien life

Short Wave ·

2026/02/23

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens -- with screensavers. It was a big moment in a century-long concerted search for extraterrestrial intelligence. So far, alien life hasn't been found. But for scientists like astronomer Janes Davenport, that doesn't mean the hunt is worthless. It doesn't mean we should give up. No, according to James, the search is only

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21:07

The noise that isn't there

Short Wave ·

2026/02/21

Almost 15% of adults suffer from a persistent, often intolerable sound... that is literally just in their heads. Why does the brain do this to us? We help one of our listeners get some answers.This is the second episode of a five-part series called The Sound Barrier from our friends at Vox's Unexplainable podcast.Guests: Stéphane Maison, director of the tinnitus clinic at Mass Eye and Ear and Dan Polley, tinnitus researcher at Mass Eye and EarLearn more about sponsor message choices:

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8:54

The truth about intermittent fasting

Short Wave ·

2026/02/20

From TikTok and Instagram influencers to celebrities like Hugh Jackman and Kourtney Kardashian, intermittent fasting has gotten a lot of hype. The diet restricts what time you eat rather than what or how much you eat. The idea is that short periods of fasting cause your body to burn through stored fat reserves. But is that conventional wisdom true? And can it really contribute to weight loss? Regina G. Barber and Rachel Carlson tackle those questions — plus why some researchers are rethinking how to

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12:48

The neuroscience of cracking under pressure

Short Wave ·

2026/02/18

The 2026 Winter Olympics are unfolding in Milan and Cortina, and we can’t look away: We’re watching athletes fly down mountains on skis and glide — sometimes slipping and falling — on the ice. Vikram Chib studies performance and how the brain responds to rewards at Johns Hopkins University. And he says rewards aren’t just for Olympians; they’re baked into basically everything humans do. But those rewards and the pressure that comes with them can come at a cost to people’s brains. And even Olympians

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11:13

Tea time... with an ape?

Short Wave ·

2026/02/17

Picture this: You’re at a pretend tea party, but instead of sitting across from toddlers in tiaras, you’re clinking cups with Kanzi—an ape with the incredible ability to communicate with humans. NPR science correspondent Nate Rott talked to some scientists who did exactly that. But these scientists weren’t just having pretend tea parties with Kanzi for fun, they were trying to test the limits of his imagination – because humans’ ability to play out “pretend” scenarios in our heads and guess at the

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11:57

Could this vaccine trial mean a future without HIV?

Short Wave ·

2026/02/16

Early last year, a hundred researchers, clinicians and other experts on HIV discussed the development of an innovative vaccine that could prevent the disease. But just as the meeting was about to wrap up, the mood darkened. A new executive order signed by President Trump on Inauguration day had frozen all foreign aid, pending a review. Soon, DOGE would begin its decimation of USAID — and with it, this vaccine trial. That is – until the South African researchers came up with a new plan. Read more of

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14:00

Why do we kiss? It's an evolutionary conundrum

Short Wave ·

2026/02/13

The evolutionary purpose of kissing has long eluded scientists. Smooching is risky, given things like pointy teeth, and inherently gross, given an estimated 80 million bacteria are transferred in a 10 second kiss. And yet, from polar bears to humans, albatrosses and prairie dogs, many animals kiss. So, what gives? Evolutionary biologist Matilda Brindle tells us the sordid details driving this behavior, what distinguishes different kinds of kissing and whether culture has anything to do with why

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12:44

AI is great at predicting text. Can it guide robots?

Short Wave ·

2026/02/11

It seems like artificial intelligence is everywhere in our virtual lives. It's in our search results and our phones. But what happens when AI moves out of the chat and into the real world? NPR science editor and correspondent Geoff Brumfiel took a trip to the Intelligence through Robotic Interaction at Scale Lab at Stanford University to see how scientists are using AI to power robots and the large hurtles that exist for them to perform even simple tasks. (encore)Read Geoff's full story.Interested

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13:00

The physics of the Winter Olympics

Short Wave ·

2026/02/10

Watching a ski jumper fly through the air might get you wondering, “How do they do that?” The answer is – physics!That’s why this episode, we have two physicists – Amy Pope, a physicist from Clemson University and host Regina G. Barber – break down the science at play across some of the sports at the 2026 Winter Olympics. Because what’s a sport without a little friction, lift and conservation of energy? They also get into the new sport this year, ski mountaineering - or “skimo” as many call it - and

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11:01

These bacteria may be key to the fight against...

Short Wave ·

2026/02/09

In 1928, a chance contaminant in Scottish physician Alexander Fleming’s lab experiment led to a discovery that would change the field of medicine forever: penicillin. Since then, penicillin and other antibiotics have saved millions of lives. With one problem: the growing threat of antibiotic resistance. Today on Short Wave, host Regina G. Barber talks to biophysicist Nathalie Balaban about the conundrum — and a discovery her lab has made in bacteria that could turn the tides.Check out our episodes

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8:17

Babies got beat: Why rhythm might be innate

Short Wave ·

2026/02/06

Rhythm is everywhere. Even if you don’t think you have it, it’s fundamental to humans’ biological systems. Our heartbeat is rhythmic. Speech is rhythmic. Even as babies, humans can track basic rhythm. Researchers wanted to find out if there were more layers to this: Could babies also track melody and more complicated rhythms? So they played Bach for a bunch of sleeping newborns and monitored the babies’ brains to see if they could predict the next note. What they found offers clues about whether

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13:57

How do extreme G-forces affect Olympic bobsledders?

Short Wave ·

2026/02/04

Olympic sliding sports – bobsled, luge and skeleton – are known for their speed. Athletes chase medals down a track of ice at up to 80 or 90 mph. With this thrill comes the risk of “sled head.” Athletes use the term to explain the dizziness, nausea, exhaustion and even blackouts that can follow a brain-rattling run. Untreated, this can turn into concussions and subconcussions. But there’s still a lot more to learn about this condition. So today, host Emily Kwong speaks with two experts about the

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13:10

Autism: debunking Trump claims, and what scientists...

Short Wave ·

2026/02/03

Autism has a long history of misinformation that continues to today. The Trump administration has perpetuated some of this misinformation in the last year. Among other things, officials have claimed certain groups of people don’t get the condition and that taking Tylenol while pregnant causes autism to later develop in children. Today, NPR Science Correspondent Jon Hamilton sets the record straight with host Emily Kwong on what scientists do and don’t know about autism. If you liked this episode,

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11:01

Why research into ‘forever chemicals’ includes...

Short Wave ·

2026/02/02

PFAS make pans nonstick, clothes waterproof and furniture stain resistant. They're so ubiquitous, they're even inside of us. Now, researchers are looking for more insights in firefighters' blood.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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13:55

Lessons and failures from the Challenger space...

Short Wave ·

2026/01/30

On Jan. 28, 1986, NASA’s 25th space shuttle mission, Challenger, left the launchpad in Cape Canaveral, Florida. Seventy-three seconds into flight, Challenger exploded over the Atlantic Ocean as millions of people watched. All seven people on board died. Now, forty years later, journalist Adam Higginbotham chronicles what went wrong. His book Challenger: A True Story of Heroism and Disaster on the Edge of Space pieces together stories from key officials, engineers and the families of those killed in

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10:24

How scientists predict big winter storms

Short Wave ·

2026/01/28

This past weekend, Winter Storm Fern struck the States. Sleet, snow and ice battered Americans all the way from New Mexico to New York. Scientists predicted its arrival in mid-January, and in anticipation of the storm, more than 20 state governors issued emergency declarations. But how did scientists know so much, so early, about the approaching storm? NPR climate reporter Rebecca Hersher says it has to do with our weather models… and the data we put into them. Which begs the question: Will we

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13:44

What drives animals to your yard? It's complicated

Short Wave ·

2026/01/27

Listener Shabnam Khan has a problem: Every time she works in her garden, she’s visited by lizards and frogs. Shabnam has lived in the metro Atlanta area for decades, and she says this number of scaly, clammy visitors has exploded over the past few years. Frogs croak at night; lizards sun on the cement. And she wants to know, where did all of these animals come from? It turns out, there are a number of potential answers – from small-scale environmental changes like natural plants and new water

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13:17

Iran offline: How a government can turn off the internet

Short Wave ·

2026/01/26

There’s an ongoing, near-total blackout of the internet in Iran. The shutdown is part of a response by the government to ongoing protests against rising inflation and the value of the nation’s currency plummeting. Since protests began more than two weeks ago, only an estimated 3% of Iranians have stayed online through the satellite internet system Starlink. Doing so is a crime. So, today on the show: Iran offline. We get into how the internet works, how a government can shut it down and how

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1,443 results

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