Short Wave

NPR

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 read less

Our Editor's Take

Science doesn't have to be boring or take forever to explain. That's the concept behind NPR's Short Wave podcast. As per the word "short" in the title, this show needs around 10 minutes to talk about a different science story. And it also picks interesting topics that ordinary people may find fascinating.

Emily Kwong and Aaron Scott cohost the Short Wave podcast. Both have backgrounds in science journalism and human interest stories. These skills help them make the topics on this show compelling.

Past Short Wave topics have included explaining why people cry and where the tears come from. Guest Mamadou Ndiaye wrote the book 100 Animals That Can F*cking End You. He quizzes the hosts about which animals people need to be afraid of. Spoiler alert: even though it is an herbivore, the Cape buffalo has a nickname as "the widowmaker" from killing hunters.

Other show topics include psychedelics and what they do. The hosts also talk to experts about where butterflies in one's stomach come from. Do humans need eight glasses a day of water or not? Short Wave answers the question. Dr. Sandra Murray explains how human cells talk to each other. The "science of soil" is also a show topic.

Short Wave sometimes interviews guests with science-related backgrounds in non-science careers. Julia Ruth studied physics and put that to work in her current career as a circus artist and acrobat.

The show finds out where the bodies go for those who have ever considered donating their body to science. Short Wave also answers environmental questions. It tells listeners which seafood items are sustainable. It also points out that most plastic items are not recycled. And it explains why the dew point number matters when it comes to determining humidity.

Science fans and those curious to learn new things may enjoy the Short Wave podcast. It drops new episodes most weekdays.

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Play Trailer

Introducing Short Wave

Introducing Short Wave

Short Wave, NPR's new daily science podcast, starts October 15th. Join host Maddie Sofia for new discoveries, everyday mysteries, and the science behind the headlines – all in about 10 minutes, Monday through Friday. Subscribe now.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Episodes

Will GMOs Bring Back The American Chestnut Tree?

Will GMOs Bring Back The American Chestnut Tree?

In the early 20th century, a blight fungus wiped out most of the 4 billion American chestnut trees on the eastern seaboard. The loss was ecologically devastating. Short Wave host Emily Kwong dives deep into how scientists are trying to resurrect the American chestnut tree — and recent controversy over a plan to plant genetically modified chestnuts in the wild. Want to hear about more efforts to recover endangered or lost species? Let us know by emailing shortwave@npr.org!Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Hear Christmas Carols And Talk To Santa On Ham Radio

Hear Christmas Carols And Talk To Santa On Ham Radio

On Christmas Eve, scientists at field stations across Antarctica sing carols to one another...via shortwave. On today's episode, the Short Wave podcast explores shortwave radio. We speak with space physicist and electrical engineer Nathaniel Frissell about this Antarctic Christmas Carol tradition and his use of shortwave radio for community science.Read more about Santa Net, which connects children (known in the shortwave radio community as "little harmonics") with Santa.Want more tech stories? Let us know by emailing 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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

How Does An Airplane Stay In The Air?

How Does An Airplane Stay In The Air?

There are many statistics out there that prove that flying on a commercial airplane is safe, that plane crashes are overall pretty unlikely. Still, up to an estimated 40% of Americans feel some fear at the thought of flying. So, amid the travel rush of the holiday season, we ask MIT aeronautical engineer Mark Drela: How does a plane lift off and stay up in the air? Interested in more stories on physics? Email us at shortwave@npr.org. We'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The First Woman To Get A New Kind Of Kidney Transplant

The First Woman To Get A New Kind Of Kidney Transplant

Towana Looney became the first living person in the world to get a kidney from a new kind of genetically modified pig last month. Health correspondent Rob Stein got exclusive access to be in the operating room.Towana is a 53-year-old grandmother from Gadsden, Ala. She's been on dialysis for four hours a day, three days a week since 2016. Her immune system would reject a human kidney. So the Food and Drug Administration made an exception to its usual clinical study requirements to allow Looney this new kind of pig kidney. But the procedure is controversial. Interested in more environmental stories? Email us at shortwave@npr.org. We'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This Huge Mining Pit Is About To Be A Lake

This Huge Mining Pit Is About To Be A Lake

Old mines leave behind a a pressing problem: Huge holes that make the landscape look like a chunk of swiss cheese. But in Germany, some scientists and city planners are turning these into lakes. The largest one will be the biggest artificial lake in Germany when it's done, with a shoreline of 26 kilometers or about 16 miles all around. But it's not as easy as simply filling the holes with water. It takes a LOT of research to get this science right. Interested in more environmental stories? Email us at shortwave@npr.org. We'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Why Big Tech Wants Nuclear Power

Why Big Tech Wants Nuclear Power

AI uses a lot of power. Some of the next generation data centers may use as much power as one million U.S. households. Technology companies like Microsoft, Google, Amazon and Meta hope nuclear power will offer a climate solution for this energy use. Nuclear power plants can deliver hundreds of megawatts of power without producing greenhouse gas emissions. But some long-time watchers of the nuclear industry are skeptical that it's the right investment for big tech companies to make. Read more of science correspondent Geoff Brumfiel's reporting here. Interested in more stories about the future of energy? Email us at shortwave@npr.org. We'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

How Racism – And Silence – Could Hurt Your Health

How Racism – And Silence – Could Hurt Your Health

Racism is often covered as a political, cultural, or news story. But how is it affecting people's health? That's the question Cara Anthony, a KFF News reporter, wanted to answer: not just on an individual scale, but on a community-wide one. So for the past few years, she's been reporting on a small town in the Midwest that illustrates that health issue: Sikeston, Missouri. Today on the show, Cara walks host Emily Kwong through Sikeston's history — and what locals and medical experts have to say about how that history continues to shape the present. For more of Cara's reporting, you can check out KFF Health News' documentary and four-part podcast series, Silence in Sikeston.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

What's A Weather Forecast Worth?

What's A Weather Forecast Worth?

The federal government has been tracking the weather for more than 150 years. Yet over the last few decades, the rise of the Internet and big tech have made weather forecasting a more crowded space. Today, our colleagues at NPR's daily economics podcast The Indicator report on the value of an accurate forecast and the debate over who should control weather data. Follow The Indicator on Apple Podcasts or Spotify. 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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Conan The Bacterium's Superpower: Resisting Radiation

Conan The Bacterium's Superpower: Resisting Radiation

In the 1950s, scientists exposed a tin of meat to a dose of radiation that they expected would kill all forms of life. But one organism defied the odds and lived: Conan The Bacterium. Turns out this microorganism, known to science as Deinococcus radiodurans, is capable of surviving extreme levels of radiation — thousands of times the amount that would kill a human. So what's Conan's secret?Want more stories about the microbial world? Let us know by emailing us at shortwave@npr.org!Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

In The Club, We All ... Archaea?

In The Club, We All ... Archaea?

Thor. Loki. Heimdall. They're not just Norse gods or Marvel characters. They're also the names of various Asgard archaea. These microscopic organisms are found all over the world, from marine sediment to mud volcanoes to hydrothermal vents. A growing body of research suggests we owe them an evolutionary debt. This episode, Emily and guest host Jon Hamilton explore the wild world of archaea: Where are they from? What do they do? And what can they tell us about the origins of life on earth? Interested in more stories about life's origins? Email us at shortwave@npr.org. We'd love to hear from you!Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Grape Growers' Next Collaborators? Robots

Grape Growers' Next Collaborators? Robots

If you crossed WALL-E with a floor lamp, it might look a little like the PhytoPatholoBot. These robots aren't roving through space or decorating a living room — they're monitoring the stems, leaves and fruit of Cornell AgriTech's vineyards, rolling down each row and scanning for mildew.In this episode, host Emily Kwong and producer Hannah Chinn take a trip to Cornell to check out these new robots. How do they work? How effective are they? And what do local grape farmers – and neighbors – think about them? Interested in more robotics stories? Email us at shortwave@npr.org. We'd love to hear from you!Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Who Does Science? Under Trump, That Could Change

Who Does Science? Under Trump, That Could Change

The next four years may be challenging for foreign-born scientists who want to work in the United States. Foreign-born workers account for about half of the doctoral-level scientists and engineers working in the U.S., but the incoming Trump administration wants to make it harder for them to get H-1B visas. Some scientists worry a scarcity of H-1B visas may prompt top foreign researchers to work in other countries. If you liked this episode, consider checking out some more episodes on the brain, including the neuroscience of disagreements, fear and fruit flies. Questions or ideas you want us to consider for a future episode? Email us at shortwave@npr.org. We'd love to hear from you!Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The Comeback Of The Southwest Peach

The Comeback Of The Southwest Peach

Centuries ago, Southwest tribal nations tended vast orchards of peach trees. But in 1863, thousands of those trees were cut down by the United States government when it ordered the Diné to leave their land as part of the Long Walk. Horticulturalist Reagan Wtysalucy wants to bring that those Southwest peaches back. Want to hear more Indigenous science? Email us at shortwave@npr.org to let us know!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The Ambitious Quest To Genetically Map All Known Vertebrates

The Ambitious Quest To Genetically Map All Known Vertebrates

The Vertebrate Genomes Project: It's an ambitious effort by an international group of scientists to create a "Genome Ark" by sequencing the genomes of about 70,000 animal species. The hope is that through all of this gene sequencing, scientists will be able to answer some basic but important questions like: What makes a bird, well, a bird? What makes a mammal a mammal? Plus, with so many species on the verge of extinction, can scientists record their genetic information before they go extinct – or better yet, maybe help save the population from going extinct? Guest host Jon Hamilton, one of our favorite science correspondents, talks to Erich Jarvis, the chair of this project, to learn what this ark of animal genomes could mean for our future – and why a platypus qualified for early boarding. Want to hear more animal stories? Let us know at shortwave@npr.org — we read every email.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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

These Rats Can Drive. What's Happening In Their Brains?

These Rats Can Drive. What's Happening In Their Brains?

In neuroscientist Kelly Lambert's lab at the University of Richmond, rats hop into cars, rev their engines and skid across the floor of an arena. Researchers taught these tiny rodents to drive — and turns out, they really like it. But why?Host Regina G. Barber talks with Kelly about her driving rats, and what they tell us about anticipation, neuroplasticity, and decision making. Plus, why optimism might be good for rats, and for humans too.Want to hear more fun animal stories? Let us know at shortwave@npr.org — we read every email.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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Why Your Brain Loves Sales

Why Your Brain Loves Sales

This Cyber Monday, a meditation on holiday sales. A quick trip to pick up presents can turn into an hours-long shopping spree thanks to all the ways stores use research from fields like consumer neuroscience and neuromarketing to entice you. Retailers create urgency and scarcity to push you to give into the emotional part of your brain, motivated by the release of dopamine. But with the help of NPR business correspondent Alina Selyukh, we get into the psychology of sales and discounts: Why it's SO hard to resist the tricks stores use — and some tips to outsmart them. Read Alina's full story here. Questions about the science driving the world around you? Email us at shortwave@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This Hazelnut May Help The Land Back Movement In Canada

This Hazelnut May Help The Land Back Movement In Canada

Beaked hazelnuts are a wild food native to North America. Indigenous peoples in British Columbia have passed down stories of these hazelnuts as a vital food source their ancestors planted and cultivated. These stories motivated Chelsea Geralda Armstrong of Simon Fraser University to look more deeply at the genetics of the beaked hazelnut and determine just how widely it was cultivated. Indigenous rights attorney Jack Woodward hopes research like this can make a difference in the Land Back movement, providing evidence that land once considered wilderness by European settler colonists was actually being carefully managed by tribes.Another science story in the news catch your eye? Let us know by emailing shortwave@npr.org — we'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This COP29, It's All About The Numbers

This COP29, It's All About The Numbers

This year's United Nations climate talks, COP29, wrapped Saturday. Throughout the talks, it was all about the numbers. With the help of NPR climate reporters Julia Simon and Alejandra Borunda, we home in on two. First, $300 billion. That's the amount of money wealthy countries agreed to give developing countries to help them adapt to climate change and reduce pollution. Second, 1.5C. That's a warming limit countries agreed to try not to breach, but that is creeping closer every year. Want to hear the latest in climate news and solutions? Let us know your thoughts by emailing 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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

How Do You Preserve An Endangered Language?

How Do You Preserve An Endangered Language?

By the end of the century, more than 40% of the world's estimated 7,000 languages are in danger of disappearing. Those include indigenous languages in the Amazon. The United Nations also estimates that an Indigenous language dies every two weeks. Today, we focus on two endangered languages spoken in the Vaupés region of northwest Amazonia: Desano and Siriano. Linguist Wilson de Lima Silva at the University of Arizona has been working with the community for a decade in an effort to document the language for future generations. Check out the book Global Language Justice, co-edited by Professor Lydia Liu.Editor's note: We have updated the headline to more accurately reflect the liguists' efforts.Want to hear more Indigenous or linguistics stories? Make your opinion heard by emailing us 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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The Battle To Save Monarch Butterflies

The Battle To Save Monarch Butterflies

Monarch butterfly populations have plummeted due to habitat loss, pesticide use and climate change. In early December, the U.S. Fish and Wildlife Service is going to decide whether the monarch should be listed under the Endangered Species Act. If that comes to pass, the migratory butterfly would be one of the most widespread species to receive this listing. Want to hear more on the animals that surround us? Email us your ideas to shortwave@npr.org — we'd love to hear from you!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.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy