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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

10:10

Coffee is complex. Can science standardize it for the...

Short Wave ·

2026/05/01

Ask any coffee aficionado, and they’ll tell you: A good cup is about more than the beans. The flavor is affected by lots of things – the roast and fermentation of the beans, the coarseness of the grind, the brewing temperature and even the chemicals in the water used to brew it. But there are very few quantitative ways to assess all the flavor variations. Current industry standards measure the concentration of coffee, but they often miss qualities like the acidity, brightness and fruitness

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9:59

NASA is practicing moonwalks. When are we going back?

Short Wave ·

2026/04/29

After the success of Artemis II, we at Short Wave definitely have moon fever. So, we brought NPR science correspondent Nell Greenfieldboyce onto the show to talk about where we’re headed. What will future Artemis missions look like and what needs to happen next for people to be able to walk on the moon again? We find out in this latest installment of Spacing Out – with space enthusiasts Regina G Barber and one of the hosts of All Things Considered, Scott Detrow! Interested in more space episodes

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12:26

Set up solar, or save a tree? It’s complicated

Short Wave ·

2026/04/28

To solar or not to solar? That is the question for this latest episode of our monthly series Nature Quest. For listener Darcey Hughes, installing solar panels isn’t just about keeping her utilities free of fossil fuels – it’s also a way to become fully self-reliant and save some money each month. But there’s a catch: She might have to chop down a large, shading cedar tree. Today, we investigate: When is solar worth it? And is it worth the price of an old, majestic tree? Do YOU have a question you

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13:28

The mystery that led this family to get their...

Short Wave ·

2026/04/27

When Karyn Paringatai learned about a pattern among her family members, it changed the course of her life: A lot of people died young. As Karyn dug into her family history, she learned many Maori families, like her own, suffered from a rare form of stomach cancer called diffuse gastric cancer. Sarah Zhang recently wrote a story on this kind of cancer as a staff writer at The Atlantic. Today, she gets into all the details with Short Wave host Emily Kwong: the mutation that causes it and the

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13:51

Why a chimp 'civil war' shows how societies collapse

Short Wave ·

2026/04/24

In the mid-1970s, primatologist Jane Goodall witnessed something that changed her opinion of chimpanzees forever: A four-year conflict amongst the chimpanzees she was studying in Tanzania. Chimpanzees that knew each other started killing each other. It was essentially the primate equivalent of a civil war. And now, it’s happening again: Fighting within the largest known community of chimpanzees. NPR science correspondent Nate Rott helps us break down what’s going on and what it could tell us about

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13:17

Where did our moon come from?

Short Wave ·

2026/04/22

Earth didn’t always have a moon. In the beginning of the solar system, when the planets were still forming, something happened that would change Earth’s night sky forever: The Moon was created! How did it happen? This episode, co-host Regina G. Barber searches for answers with planetary scientists. With co-host Emily Kwong, they discuss how the moon was likely made, how scientists know and what that might mean for where Earth’s water came from.Check out Regina's reporting on hydrothermal

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13:39

Eating disorder recovery in a diet culture world

Short Wave ·

2026/04/21

Eating disorders are complicated illnesses that skyrocketed among teenagers during the COVID-19 pandemic. Pediatrician Eva Trujillo says they "literally rewire the brain," decrease brain size, and make it harder to concentrate and to regulate emotions. Malnutrition can slow the metabolism, impact bone density and even lead to cardiac arrest. But Eva says, with the right treatment, people can also recover fully. She's the president of the International Association of Eating Disorder Professionals and

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13:55

These voicemails save lives

Short Wave ·

2026/04/20

For residents of Prek Touch, Cambodia — right on the banks of the Mekong River — flooding is a regular part of life. But as those floods worsen due to climate change, it’s getting harder to adapt. Along with other flood-prone regions throughout Southeast Asia, government officials are facing an issue: how to deliver widespread weather warnings in a timely, effective way. One solution that’s working for Prek Touch? Voicemails. Today on the show, NPR climate correspondent Rebecca Hersher explains how

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9:56

The psychology behind why you dread small talk

Short Wave ·

2026/04/17

Do you avoid small talk in the office, or with your neighbor in the elevator? If so, you might want to give it a chance. According to a study just published in the Journal of Personality and Social Psychology, even when participants were primed that a conversation would be boring, it turned out to be more interesting than they anticipated. Today on the show, we get into that, plus why scientists gave lobsters painkillers, and a clue about the formation of the Grand Canyon. Interested in more

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13:18

A new approach to brain health, one neuron at a time

Short Wave ·

2026/04/15

Neuroscientist Paul Nuyujukian likens the brain to a stadium full of people. To eavesdrop on the crowd you could put a microphone in the middle of the stadium. But to understand the conversations you need to record individual people. He thinks about the brain the same way. To understand brain disease, he studies neurons—one at a time. And his insights are shedding light on a big global issue—stroke. The World Health Organization predicts one in four adults will have a stroke in their lifetime

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13:18

Is there still a gender gap in medical research?

Short Wave ·

2026/04/14

When you go to the doctor’s office, your doctor has to figure out which treatment is best for you. Physicians rely on medical research and clinical trials to make sure those treatments are safe and effective. But that research has not always been inclusive, which impacts patient care. Women and people of color were only required to be included in medical trials funded by the NIH starting in 1993. Now, studies are more inclusive – but how we study sex and gender in research is still controversial. In

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13:18

Are you pooping all wrong?

Short Wave ·

2026/04/13

Talking about poop can be taboo, and this social norm may be hurting our health. Dr. Trisha Pasricha says around 40% of people in the U.S. have bathroom issues so bad it affects their daily lives. Pasricha, a gastroenterologist, says her patients' bathroom and bowel education ends during potty training and doesn’t continue into adulthood. This is why she wrote the book You’ve Been Pooping All Wrong. In this episode, Pasricha speaks with host Regina G. Barber about the three P’s of pooping:

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13:27

Who's to blame for all this plastic?

Short Wave ·

2026/04/10

How did plastic become so ubiquitous? The answer lies deep beneath the surface of the earth. In her new book Plastic Inc., environmental journalist Beth Gardiner lays bare the key connection between plastics and the fossil fuel companies behind them. Today, we dive into the history of the multi-billion dollar industry that brought us plastic, their plans to create even more and what could be done to turn the plastic tide.Interested in more stories about the materials that make up our world? Email us

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14:12

Quantum physics is for everybody

Short Wave ·

2026/04/08

Subatomic particles, gravity wells and the beginning of the universe – these are difficult and mysterious concepts that are better understood with storytelling and metaphor. That’s exactly theoretical physicist Chanda Prescod-Weinstein’s tack in the new book The Edge of Space-Time: use metaphor and wonder to bridge the gap between people’s confusion and excitement with quantum physics.In this episode we talk about Star Trek, how first year physics students are taught and how theoretical physics

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13:12

Why are bees special? We get inside a hive to find out

Short Wave ·

2026/04/07

In a new National Geographic docuseries, viewers get a look inside a bee hive. The series is called Secrets of the Bees — and since there’s nobody we know who loves bees more than entomologist Sammy Ramsey, we brought him on the show to share some of these secrets. We cover how bees play together (yes, play!), their ability to fend off predators four-times their size and a mite wreaking havoc on honeybees everywhere. If you liked this episode check out past episodes on liquid gold (a.k.a honey), and

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13:16

The world is running out of helium — again

Short Wave ·

2026/04/06

Lots of people count on helium. From MRI machines and semiconductor manufacturing to pressurizing rockets and detecting leaks, helium is used globally for much more than party balloons. So when there’s a shortage, like right now, the effect is far-reaching. But before the current shortage started, there was already a finite supply on Earth. So, today on Short Wave, we revisit our episode on the history of helium and how the world uses it today. If you liked this episode, check out our episode on

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10:13

Never had the flu? Scientists may know why

Short Wave ·

2026/04/03

Scientists estimate somewhere between 5%-35% of people do not get sick from the flu despite being exposed to the virus that causes it. Now, researchers may have figured out why. The team looked at mouthwash samples from 19 healthcare workers who, despite frequent contact with infected patients, report never getting flu symptoms. Today on Short Wave, we talk about how what they found could help scientists develop treatments and strategies to protect people who do get the flu. If you liked this

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13:02

Why is NASA going to the moon again?

Short Wave ·

2026/04/01

NASA’s Artemis II mission is set to launch this week, which could bring humanity close to the moon for the first time since 1972. It’s a mission that’s over twenty years in the making – and even though it’s not the first venture out to the moon, it still involves a lot of firsts. If all goes to plan, the mission will bring the first woman, person of color and non-American close to the moon. But why are we embarking on a sequel space mission to begin with? And while they’re up in space, what could

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13:12

Predicting spring bloom is an art and a science

Short Wave ·

2026/03/31

Do you ever wish you could predict the future? The National Park Service in Washington D.C. does it every year when they forecast when the Capitol’s cherry blossoms will reach peak bloom. People travel from all over the world to enjoy the annual National Cherry Blossom Festival and to glimpse these fragile flowers before they are gone. On this month’s Nature Quest, we learn the ins and outs of cherry tree blossoms, how scientists make that big prediction every year — and why all this focus on blooms

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11:29

Space news: Project Hail Mary, Artemis, data centers

Short Wave ·

2026/03/30

Short Wavers, we hear your requests. You want MORE! SPACE! So this is the first installment of a new segment focusing only on space news. First, we talk about the new sci-fi film Project Hail Mary and the accuracy of the science in the movie. Then, we move on to data centers in orbit, if they are better for the environment and why even send them up into space. Finally, we round out the conversation with a quick update about the upcoming Artemis II launch. The space nerds assembled for this

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1,540 results

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