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Short Wave

Short Wave

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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.

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/shortwaveCopyright 2019-2025 NPR - For Personal Use Only Politique et gouvernement Science
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    Épisodes
    • What drives animals to your yard? It's complicated

      What drives animals to your yard? It's complicated
      Jan 27 2026
      Listener Shabnam Khan has a problem: Every time she works in her garden, she’s visited by lizards and frogs. Shabnam has lived in the metro Atlanta area for decades, and she says this number of scaly, clammy visitors has exploded over the past few years. Frogs croak at night; lizards sun on the cement. And she wants to know, where did all of these animals come from? It turns out, there are a number of potential answers – from small-scale environmental changes like natural plants and new water sources to large-scale shifts like urbanization and development displacing local wildlife. On this month’s Nature Quest, host Emily Kwong and producer Hannah Chinn discuss the possibilities – and impacts – of these changes.

      If you live in the Atlanta area and are interested in volunteering with MAAMP (the Metro Atlanta Amphibian Monitoring Program), you can sign up for training here.

      This episode is part of Nature Quest, our monthly segment that brings you a question from a fellow listener who is noticing a change in the world around them.

      Send a voice memo to shortwave@npr.org telling us your name, location and a question about a change you’re seeing in nature – it could be our next Nature Quest episode!

      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/adchoices

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      14 min
    • Iran offline: How a government can turn off the internet

      Iran offline: How a government can turn off the internet
      Jan 26 2026
      There’s an ongoing, near-total blackout of the internet in Iran. The shutdown is part of a response by the government to ongoing protests against rising inflation and the value of the nation’s currency plummeting. Since protests began more than two weeks ago, only an estimated 3% of Iranians have stayed online through the satellite internet system Starlink. Doing so is a crime. So, today on the show: Iran offline. We get into how the internet works, how a government can shut it down and how scientists are monitoring the nation’s connectivity from afar.

      Check out more of NPR's coverage of Iran:

      - Iran Protests Explained

      - There's an internet blackout in Iran. How are videos and images getting out?

      - Iran blocked the internet amid deadly protests. Some voices are still getting through

      Interested in more science behind the headlines? Email us your question at shortwave@npr.org – we may tackle it in a future episode!

      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.

      This episode was produced by Berly McCoy, edited by Rebecca Ramirez and fact checked by Tyler Jones. Robert Rodriguez was the audio engineer.

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      13 min
    • The plight of penguins in Antarctica

      The plight of penguins in Antarctica
      Jan 23 2026
      A new study shows penguins are breeding earlier than ever in the Antarctic Peninsula. This region is one of the fastest-warming areas of the world due to climate change, and penguins time their breeding period to environmental conditions. That’s everything from the temperature outside and whether there’s ice on the ground to what food is available. Changes in those conditions could contribute to mating changes. Plus, answers to a debate about how ice melts and how dirty diapers train parents in the art of disgust.


      Have a scientific question you want us to answer? Email 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.


      Listen to Short Wave on Spotify and Apple Podcasts.


      This episode was produced by Jason Fuller and Rachel Carlson. It was edited by Rebecca Ramirez and Christopher Intagliata. Tyler Jones checked the facts. The audio engineers were Kwesi Lee and Hannah Gluvna.

      Learn more about sponsor message choices: podcastchoices.com/adchoices

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      9 min
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