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Short Wave

Short Wave

By: NPR
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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.Copyright 2019-2026 NPR - For Personal Use Only Astronomy Astronomy & Space Science Biological Sciences Politics & Government Science
Episodes
  • More men are taking testosterone. What gives?

    More men are taking testosterone. What gives?
    Aug 19 2026
    If you’re a guy – or even just friends with a guy – and on the Internet, you may have noticed that testosterone discourse is everywhere. There’s Defense Secretary Pete Hegseth announcing testosterone screenings for soldiers, Joe Rogan discussing hormone therapy, and influencers discussing high- and low-T levels. Those levels affect more than just sex. They also affect metabolism, bone health, muscle mass, red blood cell production and brain function. NPR science reporter Will Stone took a deep dive into it all: What deficiency looks like in men, what doctors recommend and what the research says about who actually needs testosterone replacement therapy.

    Interested in hearing more reporting on popular science topics? Email us what you’d like us to cover at shortwave@npr.org.

    Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.

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    15 mins
  • A survivor's view from inside a tornado

    A survivor's view from inside a tornado
    Aug 18 2026
    What’s the dumbest thing Perry Samson says he’s ever done? Getting caught inside a tornado. But when you’re an atmospheric scientist who studies supercell thunderstorms—with a special interest in the ones that cause tornadoes—that sort of thing is a bit of an occupational hazard. Lucky for Perry, he also made a split-second decision while in the tornado that may be the smartest thing he’s ever done. So today on the show: What we can learn from nature at its wildest.

    Interested in more science behind the weather? Email us your question at shortwave@npr.org.

    Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.

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    12 mins
  • Could future wars be fought by AI?

    Could future wars be fought by AI?
    Aug 17 2026
    This year, the Department of Defense announced that they’d entered agreements with eight artificial intelligence companies. It follows decades of popular media exploring the idea of artificial intelligence in war – from the computer threatening global thermonuclear conflict in the movie WarGames to the Skynet neural net in Terminator. In 2026, when Anthropic’s Claude and OpenAI’s ChatGPT are just a click away, the concept of AI-supported war is suddenly much closer to reality. So what does it really mean for militaries to use AI? And what are the potential implications if they succeed? Short Wave producer Hannah Chinn reports.

    Listen to the whole Tech Camp series.

    Interested in more military science and/or tech episodes? Email us your question at shortwave@npr.org.

    Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org.

    See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.

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    15 mins
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