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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.

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All Episodes

13:24

Come critter spotting with us on a cold winter's night

Short Wave ·

2026/01/19

In today's episode, host Emily Kwong leads us on a night hike in Patuxent River State Park in Maryland. Alongside a group of naturalists led by Serenella Linares, we'll meet a variety of species with unique survival quirks and wintertime adaptations. We'll search out lichen that change color under UV light and flip over a wet log to track a salamander keeping warm under wet leaves. Emily may even meet the bioluminescent mushrooms of her dreams. Plus, we talk about community events to get outside,

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12:52

10 breakthrough technologies to expect in 2026

Short Wave ·

2026/01/16

Wanna know where tech is headed this year? MIT Technology Review has answers. They compile an annual list called "10 Breakthrough Technologies". Today, host Regina G. Barber speaks with executive editor Amy Nordrum about the list, and they get into everything from commercial space stations and base-edited babies to batteries that could make electric vehicles even more green. We also do a lightning round of honorable mentions you won't want to miss out on!Check out the full list from MIT Technology

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13:54

When is your brain actually an "adult"?

Short Wave ·

2026/01/14

There’s 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 recent 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. Interested in

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12:10

The ozone layer is still healing…thanks to science

Short Wave ·

2026/01/13

In the mid-1980s, scientists published a startling finding–a giant hole in the ozone layer over Antarctica. That’s the protective shield that blocks large amounts of harmful UV radiation. And without it, the rate of cancer, cataracts and crop failure would skyrocket. Today on the show, we dive into ozone science and examine how scientists successfully sounded the alarm and solved an Antarctic mystery.Check out our episode on an Antarctic plankton mystery. And, listen to our monthly series Nature

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11:30

These little microbes may help solve our big problems

Short Wave ·

2026/01/12

Microbes are little alchemists that perform all manner of chemical reactions. A team of microbiologists co-founded a non-profit to try to harness those abilities to solve some of the world’s big problems — from carbon capture to helping coral reefs to cleaning up waste. Recently, the team turned their attention to the microbes living in people’s homes — on and in shower heads, drip pans, and hot water heaters. These rather extreme environments may have pressured microorganisms into surviving in ways

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8:22

Hot galaxies alert!

Short Wave ·

2026/01/09

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluster that’s hotter than the surface of the sun. More on why the finding is so shocking, plus elephant’s remarkable sniffing abilities and a new discovery about butterfly migration in this episode of Short Wave. Interested in more science news? Email us your question at shortwave@npr.org.Listen to every episode of Short Wave sponsor-free and support our

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12:21

Micro Forests: An Emerging Climate Hero?

Short Wave ·

2026/01/07

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. She joins host Emily Kwong to chat about what she saw. Interested in more of the science

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11:59

Behold a T-Rex holotype, paleontology's "gold standard"

Short Wave ·

2026/01/06

What happens behind the scenes of a dinosaur exhibit? Short Wave host Regina Barber got to find out … by taking a trip to the Carnegie Museum of Natural History in Pittsburgh. In the museum’s basement, she talked to a paleobiologist, checked out a farmland fossil find and even touched a 67 million-year-old bone. Because, as it turns out, there’s a lot of science that can be found in a museum basement.Learn more about the Carnegie Museum of Natural History’s exhibit “The Stories We Keep”.Interested

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14:04

Did Earth’s Water Come From Space?

Short Wave ·

2026/01/05

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in space? And, either way, what does this mean for other water worlds in our galaxy? To find out, we talk with Michael Wong, an astrobiologist and planetary scientist at Carnegie Science. He gets into scientists’ strongest candidates for the ways water could have come to our planet many, many years ago – including whether it could have been made here. Buckle up: This is a hot

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12:15

The trouble of zero

Short Wave ·

2026/01/02

What better time to contemplate the conundrum that is zero than the start of a new year? Zero is a fairly new concept in human history and even more recent as a number. It wasn't until around the 7th century that zero was used as a number. That's when it showed up in the records of Indian mathematicians. Since then, zero has, at times, been met with some fear — at one point the city of Florence, Italy banned the number.Today, scientists seek to understand how much humans truly comprehend zero — and

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13:16

Science In 2025 Took A Hit. What Does It Mean?

Short Wave ·

2025/12/31

Science in the United States took some big hits this year. The Trump Administration disrupted federal funding for all kinds of scientific pursuits. Administration officials say those changes were a step towards reinvigorating federal agencies like the National Institutes of Health. But many scientists disagree. NPR health and science correspondents Rob Stein and Katia Riddle chat with host Emily Kwong about what these cuts could mean for the future of science.Interested in more stories on the future

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13:55

Climate Anxiety Is Altering Family Planning

Short Wave ·

2025/12/30

Gen Z and younger millennials are generally the most climate literate generations. As an age cohort that started learning about climate change in school, they're worried about how to plan for their future jobs, houses and, yes, kids. With climate-related disasters and global warming likely to worsen, climate anxiety is giving way to reproductive anxiety. So, what do experts say about how to navigate the kid question?On this encore episode of Nature Quest, Short Wave speaks to Alessandra Ram,

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12:53

Why Kratom Is At The Heart Of A Big Public Health Debate

Short Wave ·

2025/12/29

Kratom and 7-OH products are available in many smoke shops. But earlier this year, the FDA recommended certain 7-OH products be scheduled alongside opioids. This isn’t the first time kratom has come under scrutiny. Nearly a decade ago, the DEA wanted to make certain active ingredients in kratom controlled substances. Meaning products would go from being widely available to highly restricted. After a massive wave of protest, the DEA decided not to move forward. Producer Rachel Carlson joins host

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10:13

Why Drones Are Catching Whale Breaths

Short Wave ·

2025/12/26

Scientists in the Arctic are catching the exhaled breaths of whales to better understand their health. How? Drones. Whales breathe through their blowholes, which are the equivalent of nostrils on their heads. By studying the microbes in exhaled whale breaths, scientists are piecing together how deadly diseases spread in whale populations. Host Emily Kwong and producer Berly McCoy talk to All Things Considered host Juana Summers about what scientists can do with this information, from reducing stress

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13:40

Drinking Turns Some Red With Asian Glow—And May Fight...

Short Wave ·

2025/12/24

Ever gotten a scarlet, hot face after drinking alcohol or know someone who has? Many people felt it as they celebrate the holidays with loved ones, sipping mulled wine, cocktails or champagne. That's because this condition, commonly called "Asian flush" or "Asian glow," affects an estimated half a billion people, who can't break down aldehyde toxins that build up in their bodies. But what if there's a benefit to having Asian glow? Katie Wu, a staff writer for The Atlantic, has looked into the

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14:22

Why Suicide Prevention is 'Everyone's Business'

Short Wave ·

2025/12/23

Written by Jo Lambert, ‘Hold The Hope’ is now being used as suicide prevention training material by the UK’s National Health Service Mental Health Trust. Emily Kwong speaks with Rhitu Chatterjee about the inner strength of those who live with suicidality, how a song is opening up new conversations for mental health care, and how caregivers can help a person choose life, despite having persistent thoughts of death. If you or someone you know may be struggling with suicidal thoughts, contact the 988

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14:43

No, Raccoons Aren’t Pet-Ready (Yet)

Short Wave ·

2025/12/22

Dogs are man’s best friend. And it’s no secret that we at Short Wave love cats (Regina has four)! Both of these iconic pets have been domesticated – evolved and adapted to live alongside humans – for millennia. And a recent study suggests that the common raccoon may be on its first steps towards joining them. So how do scientists look for signs of domestication and what do those signs mean? And could you have a litter box trained raccoon in your lifetime? We talk to the study’s lead author, Raffaela

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12:12

GLP-1 Pills Are On The Way. Here's What To Know

Short Wave ·

2025/12/19

You may have heard of Ozempic, and other GLP-1 drugs. They’re everywhere. And they typically involve weekly injections — which can have a sticker price of over a thousand dollars a month. And insurance coverage has been tricky to navigate for a lot of people. That’s why there’s a lot of excitement around a new pill form of the drug. NPR Pharmaceuticals Correspondent Sydney Lupkin chats about these experimental pills with host Emily Kwong. Check out more of NPR’s coverage about GLP-1s.Interested in

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10:53

The Indicator: Take A Penny, Leave A Penny, Get Rid...

Short Wave ·

2025/12/18

In November, the U.S. stopped production of the humble penny after 232 years in circulation. On today’s show, Darian Woods and Wailin Wong from NPR's daily economics podcast The Indicator unpack the fiscal math that doomed the penny, and an artist pay tribute to this American icon. Follow the Indicator on Apple Podcasts or Spotify. View more of Robert Wechsler’s artwork here.Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at

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14:24

"A Very, Very Big Deal." Countries Take On Fossil Fuels

Short Wave ·

2025/12/17

Many countries are frustrated with U.N. climate conferences. While some countries urgently want to transition away from fossil fuels — the main driver of global warming — others are blocking that language from climate agreements. Today on the show, Emily talks with Julia Simon from NPR’s climate desk. She takes us to Brazil and introduces us to a group of countries that are trying something new.Interested in more science and climate related news? Email us your question at shortwave@npr.org.Listen to

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