Episodes

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

    Why are bees special? We get inside a hive to find out
    Apr 7 2026
    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 honeybees.

    Email us your questions about insects, critters – or anything else to do with science at shortwave@npr.org. We may turn it into an episode in the future!

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    13 mins
  • The world is running out of helium — again

    The world is running out of helium — again
    Apr 6 2026
    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 aluminum's strange journey from precious metal to beer can.

    Interested in more science in the news? Email us your question 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.

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    13 mins
  • Never had the flu? Scientists may know why

    Never had the flu? Scientists may know why
    Apr 3 2026
    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 episode, check out our show on an effort to map the entire immune system.

    Interested in more health science? Email us your question 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.

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    10 mins
  • Why is NASA going to the moon again?

    Why is NASA going to the moon again?
    Apr 1 2026
    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 scientists learn about the possibility of life in space for those of us still on Earth?

    Interested in more science behind current events? Email us your question 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.

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    13 mins
  • Predicting spring bloom is an art and a science

    Predicting spring bloom is an art and a science
    Mar 31 2026
    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 can help scientists better understand climate change.

    This episode is part of Nature Quest, our monthly segment from listeners noticing a change in the world around them. To participate, send a voice memo to shortwave@npr.org with your name, location and your question about a change you're seeing in nature!

    Want to learn more about nature’s calendar? Check out our first Nature Quest episode on whether flowers are blooming early.

    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.

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    13 mins
  • Space news: Project Hail Mary, Artemis, data centers

    Space news: Project Hail Mary, Artemis, data centers
    Mar 30 2026
    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 conversation are host and astrophysicist Regina G Barber, known space enthusiast and host of All Things Considered Scott Detrow and NPR science correspondent Geoff Brumfiel.

    Interested in more on space? Check out our whole summer series, Space Camp. Or email us your question 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.

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    11 mins
  • What's up with recycled wastewater's PR problem?

    What's up with recycled wastewater's PR problem?
    Mar 27 2026
    Would you drink recycled wastewater? It could be a solution to the global water crisis. But not everyone is ready to jump onboard. They say it’s not technology that’s keeping more cities from recycling their wastewater, but psychology. Experts call this resistance “the yuck factor.” We chat with water journalist Peter Annin about some history behind water recycling – and why more cities could adopt the solution soon.


    This is part of a whole series on the world’s dwindling water supply. Check out the rest of the water series:
    Part 1: When the wells run dry
    Part 2: The world’s groundwater problem
    Part 3: Freshwater’s growing salt problem


    Email us your questions about water, the wider environment – or anything else to do with science at shortwave@npr.org. We may turn it into an episode in the future!


    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 Rachel Carlson. It was edited by Rebecca Ramirez. Aru Nair checked the facts. The audio engineer was Jimmy Keeley.

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    14 mins
  • The world’s freshwater is getting saltier. Why?

    The world’s freshwater is getting saltier. Why?
    Mar 25 2026
    Around the world, the planet’s freshwater is getting saltier. And it’s because of people. For decades, salting roads, fertilizer run-off and evaporation driven by human-caused climate change have upped the salinity of lakes, rivers and groundwater. All that salt is detrimental to a lot of aquatic life and can be problematic for drinking water, too. But there’s still time to reverse course. In fact, many people have already started to change their ways. Today, producer Berly McCoy is on the case to see what solutions exist.

    This is part of a whole series on the world’s dwindling water supply. Check out the rest of the water series:
    Part 1: When the wells run dry
    Part 2: The world’s groundwater problem
    Part 3: Freshwater’s growing salt problem

    Email us your questions about water, the wider environment – or anything else to do with science at shortwave@npr.org. We may turn it into an episode in the future!

    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.


    To manage podcast ad preferences, review the links below:

    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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    12 mins