Short Wave

Come critter spotting with us on a cold winter's night

In today's episode, host Emily Kwong leads us on a night hike in Patuxent River State Park in Maryland. Alongside a group of naturalists led by Serenella Linares, we'll meet a variety of species with unique survival quirks and wintertime adaptations. We'll search out lichen that change color under UV light and flip over a wet log to track a salamander keeping warm under wet leaves. Emily may even meet the bioluminescent mushrooms of her dreams. Plus, we talk about community events to get outside, such as the City Nature Challenge and Great American Campout. Do you have a question about changes in your local environment? Email a recording of your question to shortwave@npr.org [shortwave@npr.org] — we may investigate it as part of an upcoming Nature Quest segment! 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 [http://plus.npr.org/shortwave]. Learn more about sponsor message choices: podcastchoices.com/adchoices [https://podcastchoices.com/adchoices] NPR Privacy Policy [https://www.npr.org/about-npr/179878450/privacy-policy]

10 breakthrough technologies to expect in 2026

Wanna know where tech is headed this year? MIT Technology Review has answers. They compile an annual list called "10 Breakthrough Technologies [https://www.technologyreview.com/2026/01/12/1130697/10-breakthrough-technologies-2026/]". Today, host Regina G. Barber [https://www.npr.org/people/1082526815/regina-g-barber] speaks with executive editor Amy Nordrum [http://www.amynordrum.com/] about the list, and they get into everything from commercial space stations and base-edited babies to batteries that could make electric vehicles even more green. We also do a lightning round of honorable mentions you won't want to miss out on! Check out the full list from MIT Technology Review [https://www.technologyreview.com/2026/01/12/1130697/10-breakthrough-technologies-2026]. Interested in more science? Check out our episode on last year’s top 10 technologies [https://www.npr.org/2025/01/31/1228085791/ai-artificial-intelligence-mit-cows-methane] to watch and our episode on building structures in space [https://www.npr.org/2025/12/16/nx-s1-5608226/could-architecture-in-space-make-a-greener-earth]. Email us your questions at shortwave@npr.org [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 [http://plus.npr.org/shortwave]. This episode was produced by Berly McCoy. It was edited and fact-checked by Rebecca Ramirez. The audio engineer was Robert Rodriguez. Learn more about sponsor message choices: podcastchoices.com/adchoices [https://podcastchoices.com/adchoices] NPR Privacy Policy [https://www.npr.org/about-npr/179878450/privacy-policy]

When is your brain actually an "adult"?

There’s this idea that something happens in the human brain when we turn 25. Suddenly, we can rent a car without fees. Make rational decisions. We may even regret some of our past… indiscretions. All because we’re developed…right? Well, a recent paper in the journal Nature [https://www.nature.com/articles/s41467-025-65974-8] suggests that may not be the case. Neuroscientists found four distinct turning points in brain development across the human lifespan – and that the brain may be in its “adolescent” phase until about the age of 32.  Interested in more of the science inside your brain? Email us your question at shortwave@npr.org [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 [http://plus.npr.org/shortwave]. This episode was produced by Rachel Carlson. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Kwesi Lee. Learn more about sponsor message choices: podcastchoices.com/adchoices [https://podcastchoices.com/adchoices] NPR Privacy Policy [https://www.npr.org/about-npr/179878450/privacy-policy]

The ozone layer is still healing…thanks to science

In the mid-1980s, scientists published a startling finding [https://www.nature.com/articles/315207a0]–a giant hole in the ozone layer over Antarctica. That’s the protective shield that blocks large amounts of harmful UV radiation. And without it, the rate of cancer, cataracts and crop failure would skyrocket. Today on the show, we dive into ozone science and examine how scientists successfully sounded the alarm and solved an Antarctic mystery. Check out our episode on an Antarctic plankton mystery [https://www.npr.org/2025/03/10/1237260294/research-plankton-climate-change-whales-antarctica-polar-fjord]. And, listen to our monthly [https://www.npr.org/transcripts/1266983858] series [https://www.npr.org/2025/04/22/1266983681/spring-flowers-earth-day-phenology] Nature [https://www.npr.org/2025/09/30/nx-s1-5518203/ocean-climate-change-flood-sea-level] Quest [https://www.npr.org/2025/05/27/1266983774/kids-climate-change-anxiety-family]. Interested in more atmospheric science? Email us your question at shortwave@npr.org [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 [http://plus.npr.org/shortwave]. This episode was produced by Berly McCoy. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Becky Brown. Learn more about sponsor message choices: podcastchoices.com/adchoices [https://podcastchoices.com/adchoices] NPR Privacy Policy [https://www.npr.org/about-npr/179878450/privacy-policy]

These little microbes may help solve our big problems

Microbes are little alchemists that perform all manner of chemical reactions. A team of microbiologists co-founded a non-profit to try to harness those abilities to solve some of the world’s big problems — from carbon capture to helping coral reefs to cleaning up waste. Recently, the team turned their attention to the microbes living in people’s homes — on and in shower heads, drip pans, and hot water heaters. These rather extreme environments may have pressured microorganisms into surviving in ways that could be advantageous to humans. Science reporter Ari Daniel [https://www.npr.org/people/297147967/ari-daniel] takes us on a treasure hunt in miniature. This episode was produced by Hannah Chinn. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Robert Rodriguez. Interested in learning more about the weird and wonderful world of microbes? Email us your question at shortwave@npr.org [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 [http://plus.npr.org/shortwave]. Learn more about sponsor message choices: podcastchoices.com/adchoices [https://podcastchoices.com/adchoices] NPR Privacy Policy [https://www.npr.org/about-npr/179878450/privacy-policy]