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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. Support public media by joining NPR+ at plus.npr.org. You’ll get perks for over 25 NPR podcasts, including sponsor-free listening for Short Wave.

science life sciences

All Episodes

13:38

Prepare to be baffled by what we don't know about eels

Short Wave ·

2026/06/05

More than a century ago, all that people knew about European eels was that they lived in the rivers and streams for decades — until they swam out to the ocean and never returned. Eventually, tiny eels would show up and the cycle would start again. Where did the adult eels go? Where did the baby eels come from? Did they even reproduce at all or just spontaneously emerge into being? Science now has some — but not all — of the answers to these questions. Today on the show, Regina G. Barber talks to

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9:26

This common garden plant summons wasps as bodyguards

Short Wave ·

2026/06/03

In our latest science news roundup: how nature adapts, for better or worse. When faced with pests, plants may not be able to run away – but that doesn’t mean they’re defenseless. Some have thorns or spines, others have poisonous leaves or berries, and still others have…elaborate chemical defense alarm systems? In a recent study, researchers discovered that the common bean plant, P. vulgaris, has a particularly innovative response to hungry caterpillars: a compound in the caterpillar's spit causes

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12:12

Why are scientists planting tiny forests in big cities?

Short Wave ·

2026/06/02

Healthy forests help combat climate change, provide humans with drinking water and even improve mental and physical health. But it’s hard to imagine an entire forest in the middle of a big city. That’s where micro-forests come into play — public forests on a smaller scale, filled with native plants. They exist around the world, and producer Rachel Carlson went to visit the largest micro-forest in California in this encore episode. She joins host Emily Kwong to chat about what she saw. Interested in

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12:48

Why you can't stop scrolling: the science of 'dark flow'

Short Wave ·

2026/06/01

You pick up your phone to do one quick task, and suddenly 20 minutes have flown by without you even noticing. How do apps do that to you? Science journalist Michaeleen Doucleff felt like her phone had superglue on it, holding her on it for hours each day while draining her of time and energy. Turns out, that feeling isn’t accidental. In her new book, Dopamine Kids, Michaeleen describes four features that tech companies add to apps to keep us scrolling for as long as possible. She’s sharing this

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9:47

This distant planet has wild weather and gemstone clouds

Short Wave ·

2026/05/29

For many astronomers and astrophysicists there are two distinct, important periods: before the James Webb Space Telescope – and after. It has powered many scientific discoveries since it came online, including two at the heart of this episode: insights into one of Neptune’s moons and a “hot Jupiter” exoplanet orbiting another star. This exoplanet has a strange weather system with high winds and cloud coverage only on one side of the planet. Fill in some of the scientific gaps about our solar system

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11:59

Should we reengineer the world's deadliest animal?

Short Wave ·

2026/05/27

The most ferocious predator for us humans is actually quite small: the mosquito. They are hungry for blood, spreading diseases like malaria, yellow fever and dengue – and picking up new ones all the time. But what if we could wipe out the mosquito? Gene-editing technology could do it, potentially saving millions of lives. But it comes with serious potential for risk. Which begs the question: Should we get to decide when humanity rewrites nature? Here to discuss that is Ben Bradford, the host of a

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11:52

Is it getting windier?

Short Wave ·

2026/05/26

Is it getting windier? Long-time listener Barry Zalph thinks it is, at least in Louisville. And he’s not the only one. Redditors and local reporters have noticed a recent uptick in the region’s windstorms, too. But does that point to any larger trends in windiness? And if so, what could be causing it? We talked to meteorologist and extreme weather specialist Scott Gunter to find out. Plus, we dig into whether Tornado Alley is shifting into Kentucky as the climate warms. This episode is part of

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13:06

The magic — and science — of synchronous fireflies

Short Wave ·

2026/05/25

Every year for two weeks between mid-May and mid-June, Congaree National Park in South Carolina is home to a fairy-tale-like display of flashing lights. These rhythmic performances happen all because of thousands of fireflies, flashing their belly lanterns at exactly the same time. According to the National Park Service, there are just three species of these synchronous fireflies in North America, making the experience all the more magical for the lucky visitors who get the chance to see them

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12:01

The supertree shielding coastlines and storing carbon

Short Wave ·

2026/05/22

Coastal fishing communities around the world are struggling with declining fish stocks. That’s because of climate change, environmental degradation and overfishing. But one tree – the humble mangrove – has a superpower that’s supporting healthy fisheries in many parts of the world. The majority of fishes we eat worldwide are supported by mangroves: Their roots serve as a nursery for baby fish. So, today on the show, two reporters travel to Cambodia, where they discover why a local fishing solution

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13:31

Why renaming this common hormonal disorder is a huge...

Short Wave ·

2026/05/20

You probably know someone who has a condition that, until last week, was known as PCOS, or polycystic ovary syndrome. It affects one in eight reproductive-aged women. But despite it being such a common disorder, patients are often misdiagnosed and have delayed treatment. Now, medical professionals are trying to change that. After 15 years of work, the condition has been renamed to PMOS, or polyendocrine metabolic ovarian syndrome. The new name reflects the real driver of the condition: disruptions

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14:27

A solution for California's water woes

Short Wave ·

2026/05/19

For years, farmers in California have been pumping huge amounts of water from their wells to irrigate their crops. The state’s Central Valley is the nation’s single biggest source for many different foods. But all that water use is making aquifers shrink, wells go dry and, in some places, the ground sink. Science reporter Dan Charles has been looking into the issue and is on the show today to talk about what happens when water gets scarce. What is it like for farmers? And for the people enforcing

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14:17

What's up with your nightmares?

Short Wave ·

2026/05/18

Dreams of flying? Nightmares of teeth falling out? Falling off a cliff? As a sleep scientist at the University of Montreal, Michelle Carr has pretty much heard it all. In Michelle’s new book Nightmare Obscura, she explores the science of dreams, nightmares – and even something called dream engineering, where people influence their own dreams while they sleep. Today on Short Wave, co-host Regina G. Barber dives into the science of our sleeping life with Michelle Carr. (encore)Interested in any

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10:32

A chemical found in fish could help reinvent your...

Short Wave ·

2026/05/15

It’s been over 25 years since the FDA approved a new ingredient for sunscreen in the United States. But a molecule called gadusol found in fish and coral reefs is a promising candidate. It absorbs U.V. rays — acting like a built-in sunscreen for fish. But there’s a big hurdle if scientists want to turn gadusol into human sunscreen: They’d need to make a lot of it. A new study out this week in the journal Trends in Biotechnology takes us a big step closer. Their solution? Using the bacteria best

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12:00

Should you be fibermaxxing? Here's what the science says

Short Wave ·

2026/05/13

The average person eats 10-15 grams of fiber per day, according to the USDA. The problem? That’s WAY under the recommended daily amount. Fiber – a type of carb that our bodies are unable to digest – is prevalent in foods like fruits, veggies, whole grains, and beans. And it’s key for everything from feelings of fullness, to gut health, to good poop. That’s why a lot of people online are “fibermaxxing”: trying to meet or exceed the daily recommendation of fiber, in hopes it’ll improve their health

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10:05

Why Swedish scientists gave salmon cocaine

Short Wave ·

2026/05/12

A recent study caught our eye: salmon on cocaine. Or really, researchers giving salmon cocaine…for science. See, scientists know human drugs pollute aquatic environments – past studies have shown even anti-anxiety drugs can change how fish act. But illicit drugs are less studied. And Jack Brand, an aquatic ecologist at the Swedish University of Agricultural Sciences, wanted to know how illicit drugs like cocaine might change fish behavior, like foraging and mating. To answer that question, Jack and

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14:27

Without this pill, lots of people would be dead

Short Wave ·

2026/05/11

25 years ago, the FDA approved a pill that would change the way scientists treat cancer … for good. The pill was called Gleevec; it was designed specifically to treat CML, chronic myeloid leukemia, and it was one of the first targeted cancer therapies available. A quarter century after approval, it’s still being prescribed, as are second, third and fourth-generation drugs that followed in its footsteps. What made it so special – and so effective? Pharmaceutical correspondent Sydney Lupkin walks us

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12:57

Hantavirus: the risks, the science and what you need...

Short Wave ·

2026/05/08

On May 2, the World Health Organization got an alarming report: People aboard a ship in the Atlantic Ocean were falling ill. The culprit is now confirmed as hantavirus, a pathogen that some rodents carry that can infect humans in rare, but often deadly, instances. Multiple passengers have died, and more people are showing symptoms. So, we’re talking to Emily Abdoler, an infectious disease doctor at the University of Michigan, about the news – how common is hantavirus in humans, what are the

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12:56

How science is taking tripping mainstream

Short Wave ·

2026/05/06

President Trump recently signed an order to speed up the evaluation of psychedelics to treat the brain. That’s coming after decades of strict prohibition on psychedelic drug use dating back to President Nixon. So how did we go from that to a psychedelic renaissance? A look into a key institution in the world of psychedelic research may give us some clues. This episode, NPR’s brain correspondent Jon Hamilton shares insight from a recent trip. (No pun intended.) Want more psychedelic content? Catch

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14:29

This medical condition stumped doctors for years

Short Wave ·

2026/05/05

One morning, Kyla Madonna Kenney woke up and her world was turned upside down: The room was spinning, she had a splitting migraine and one side of her body was shaking. Her tremors and migraine lasted for days. And for years afterwards, doctors would ask her: Did anything upset you recently? Are you stressed? Have you talked to a therapist about your anxiety? She underwent surgeries and took medications that were, in hindsight, unnecessary. It wasn’t until seeing Dr. David Perez, a neurologist who

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12:43

The secret behind clownfish stripes and more fishy...

Short Wave ·

2026/05/04

We reeled in science reporter Ari Daniel for this episode who grants us three wishes in the form of three fishes. He takes us on a trip around the world to learn about how a clownfish in the western Pacific loses its stripes as it grows up just to fit in, a fat French fry of a fish that can scale a 50-foot rockface in the Democratic Republic of Congo, and the remarkable rearing of a pea-sized Pokémon-like fish at the Shedd Aquarium in Chicago. Together, these stories reveal just how remarkable and

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1,540 results

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