Episodes

  • How Do You Save An Endangered Language?

    How Do You Save An Endangered Language?
    Nov 26 2024
    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.

    Want to hear more Indigenous or linguistics stories? Make your opinion heard by emailing us at shortwave@npr.org!

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    13 mins
  • The Battle To Save Monarch Butterflies

    The Battle To Save Monarch Butterflies
    Nov 25 2024
    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!

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    15 mins
  • Are Starship Launches Trashing Texas?

    Are Starship Launches Trashing Texas?
    Nov 22 2024
    SpaceX's Starship rocket took off again Tuesday for its sixth test flight. Crowds, including President-elect Donald Trump, gathered at the launch site in Texas to watch it fly part way around the world to the Indian Ocean.

    Starship – the largest rocket ever built – is the dream of Elon Musk, who hopes to make humans a multiplanetary species. But building the rocket is having a real impact on Earth. The launch site is located in the middle of one of Texas' largest wildlife sanctuaries and environmentalists say every launch is causing damage.

    Plus, how government regulation of launches may change in a second Trump administration.

    Want to hear more on the future of space exploration? Email us your ideas to shortwave@npr.org — we'd love to hear from you!

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    14 mins
  • The Mystery of the Dead Coho Salmon

    The Mystery of the Dead Coho Salmon
    Nov 20 2024
    For decades, Coho salmon were turning up dead in urban streams the Pacific Northwest. The salmon would stop swimming straight, and then die before they had a chance to spawn. Researchers worried that unless they figured out the cause, the species would eventually go extinct. Enter a formidable crew of biologists, modelers, community scientists, environmental chemists. After eventually ruling out the obvious suspects — things like temperature, oxygen levels and known toxins — researchers eventually zeroed in on a prime suspect: chemicals in tires. But the question remained: Which one?

    If you liked this episode, check out our other episodes on satellites monitoring emissions and how air pollution could create superbugs.

    Want to hear more environmental stories or science mysteries? Tell us by emailing shortwave@npr.org!

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    12 mins
  • How To Have Hard Conversations

    How To Have Hard Conversations
    Nov 19 2024
    Many people are gearing up for holiday conversations with loved ones who may disagree with them — on everything from politics to religion and lifestyle choices. As the conversations unfold, these divisions are visible in our brains too. These conversations can get personal and come to a halt fast. But today on the show we get into research in neuroscience and psychology showing that as much as we disagree, there are ways to bridge these divides – and people who are actively using these strategies in their daily lives.

    Want to hear more neuroscience and psychology? Email us your ideas to shortwave@npr.org — we'd love to hear from you!

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    15 mins
  • Don't Let Jet Lag Ruin Your Holiday Plans

    Don't Let Jet Lag Ruin Your Holiday Plans
    Nov 18 2024
    Getting enough sleep regularly can be tough — and even harder when you're traveling for the holidays. "We need sleep like we need water," says Jade Wu, a behavioral sleep medicine psychologist and author of the book Hello Sleep. She and host Regina G. Barber discuss what's happening to our bodies when we get jet lag and the clocks in our body get out of whack. They also get into the science of the circadian rhythm and how to prepare for a long flight across time zones.

    Check out CDC's website for tips on minimizing jet lag.

    Want to hear more science of holiday living? Email us your ideas to shortwave@npr.org — we'd love to hear from you!

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    14 mins
  • The Mystery Mollusk Roaming The Midnight Zone

    The Mystery Mollusk Roaming The Midnight Zone
    Nov 15 2024
    This critter lurks in the ocean's midnight zone, has a voluminous hood, is completely see through and is bioluminescent. It's unlike any nudibranchs deep sea experts have ever seen before — and now, the researchers who spent twenty years studying them have finally published their findings.

    Have another scientific discovery you want us to cover on a future episode? Email us at shortwave@npr.org — we might feature your idea on a future episode!

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    9 mins
  • Should Humans Live On Mars?

    Should Humans Live On Mars?
    Nov 13 2024
    As global warming continues and space technology improves, there is more and more talk about the growing possibility of a sci-fi future in which humans become a multiplanetary species. Specifically, that we could live on Mars. Biologist Kelly Weinersmith and cartoonist Zach Weinersmith have spent the last four years researching what this would look like if we did this anytime soon. In their new book A City On Mars, they get into all sorts of questions: How would we have babies in space? How would we have enough food? They join host Regina G. Barber and explain why it might be best to stay on Earth.

    Kelly and Zach Weinersmith's book A City On Mars is out now.

    Have another space story you want us to cover on a future episode? Email us at shortwave@npr.org — we'd love to hear from you!

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    14 mins