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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/shortwave

Short Wave

Wanna know where tech is headed this year? MIT Technology Review has answers. They compile an annual list called "10 Breakthrough Technologies". Today, host Regina G. Barber speaks with executive editor Amy Nordrum 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.

Interested in more science? Check out our episode on last year’s top 10 technologies to watch and our episode on building structures in space.

Email us your questions 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.

This episode was produced by Berly McCoy. It was edited and fact-checked by Rebecca Ramirez. The audio engineer was Robert Rodriguez.

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10 breakthrough technologies to expect in 2026

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 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.

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 Rachel Carlson. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Kwesi Lee.

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When is your brain actually an "adult"?

In the mid-1980s, scientists published a startling finding–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. And, listen to our monthly series Nature Quest.

Interested in more atmospheric 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.

This episode was produced by Berly McCoy. It was edited by Rebecca Ramirez. Tyler Jones checked the facts. The audio engineer was Becky Brown.

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The ozone layer is still healing…thanks to science

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 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.

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These little microbes may help solve our big problems

Most astronomers agree that young galaxy clusters should be relatively cool compared to older ones. But researchers recently found a very young cluster that’s hotter than the surface of the sun. More on why the finding is so shocking, plus elephant’s remarkable sniffing abilities and a new discovery about butterfly migration in this episode of Short Wave. 

Interested in more science 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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Hot galaxies alert!

Healthy forests help combat climate change, provide humans with drinking water and even improve mental and physical health. But it’s hard to imagine an entire forest in the middle of a big city. That’s where micro-forests come into play — public forests on a smaller scale, filled with native plants. They exist around the world, and producer Rachel Carlson went to visit the largest micro-forest in California. She joins host Emily Kwong to chat about what she saw. 

Interested in more of the science behind urban nature? 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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Micro forests: an emerging climate hero?

What happens behind the scenes of a dinosaur exhibit? Short Wave host Regina Barber got to find out … by taking a trip to the Carnegie Museum of Natural History in Pittsburgh. In the museum’s basement, she talked to a paleobiologist, checked out a farmland fossil find and even touched a 67 million-year-old bone. Because, as it turns out, there’s a lot of science that can be found in a museum basement.

Learn more about the Carnegie Museum of Natural History’s exhibit “The Stories We Keep”.

Interested in more archaeology and dino-related 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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Behold a T-Rex holotype, paleontology's "gold standard"

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in space? And, either way, what does this mean for other water worlds in our galaxy? To find out, we talk with Michael Wong, an astrobiologist and planetary scientist at Carnegie Science. He gets into scientists’ strongest candidates for the ways water could have come to our planet many, many years ago – including whether it could have been made here. Buckle up: This is a hot debate in astrobiology right now.

If you enjoyed this episode, check out our Space Camp series and our episode on whether life started on the ocean floor..

Interested in more space science and more unresolved hypotheses about how the universe came to be how it is today? Email us your question at shortwave@npr.org.

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Did Earth’s Water Come From Space?

What better time to contemplate the conundrum that is zero than the start of a new year? Zero is a fairly new concept in human history and even more recent as a number. It wasn't until around the 7th century that zero was used as a number. That's when it showed up in the records of Indian mathematicians. Since then, zero has, at times, been met with some fear — at one point the city of Florence, Italy banned the number.

Today, scientists seek to understand how much humans truly comprehend zero — and why it seems to be different from other numbers. That's how we ended up talking to science writer Yasemin Saplakoglu in this encore episode about the neuroscience of this number that means nothing.

Read more of Yasemin's reporting on zero for Quanta Magazine. Plus, check out our episode on why big numbers break our brains.
Interested in more math episodes? Let us know what kind of stories you want to hear from us in 2026 by emailing shortwave@npr.org!
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The trouble of zero

Science in the United States took some big hits this year. The Trump Administration disrupted federal funding for all kinds of scientific pursuits. Administration officials say those changes were a step towards reinvigorating federal agencies like the National Institutes of Health. But many scientists disagree. NPR health and science correspondents Rob Stein and Katia Riddle chat with host Emily Kwong about what these cuts could mean for the future of science.

Interested in more stories on the future of 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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Science In 2025 Took A Hit. What Does It Mean?

Dinosaurs ruled the earth for many millions of years, but only after a mass extinction took out most of their rivals. Just how that happened remains a mystery — sounds like a case for paleoclimatologist Celina Suarez! Suarez walks us through her scientific detective work, with a little help from her trusty sidekick, scientist-in-residence Regina G. Barber.

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Rise Of The Dinosaurs

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