Episodes 1,502
Avg. Duration 12m
Activity Highly Active
Since Oct 2019
Latest Episode Jun 2026

Publishing Details

Schedule
Every Few Days
Format
Episodic
Consistency
54%
Hosting
feeds.npr.org

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About This Podcast

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

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Recent Episodes

Why your sunscreen is finally getting a major upgrade

Jun 12, 2026 9m

Until this week, the United States hadn’t approved a new sunscreen ingredient in over 20 years. That changed Tuesday, when the FDA approved a new chemical for U.S. sunscreens. It’s called…

How a single flu shot could protect you for decades

Jun 10, 2026 11m

Every year, tens of millions of people in the U.S. get the flu vaccine. That’s because the virus changes year-to-year and protection only lasts around six months. Adolfo Garcia-Sastre wants to change…

Your DNA is changing all the time. Here’s why

Jun 09, 2026 14m

We tend to think of the DNA strands that contain our genetic code as consistent, stable units. But in reality, the cells that make up our bodies are constantly replicating and changing. Even as you…

Inner monologues are still a mystery

Jun 08, 2026 14m

Emily Kwong is pretty sure she lacks an inner monologue, while the inner monologue of producer Rachel Carlson won’t stop chatting. But how well can a person know their inner self? And what does…

Prepare to be baffled by what we don't know about eels

Jun 05, 2026 13m

More than a century ago, all that people knew about European eels was that they lived in the rivers and streams for decades — until they swam out to the ocean and never returned. Eventually, tiny…

This common garden plant summons wasps as bodyguards

Jun 03, 2026 9m

In our latest science news roundup: how nature adapts, for better or worse. When faced with pests, plants may not be able to run away – but that doesn’t mean they’re defenseless. Some have thorns or…

Why are scientists planting tiny forests in big cities?

Jun 02, 2026 12m

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.…

Why you can't stop scrolling: the science of 'dark flow'

Jun 01, 2026 12m

You pick up your phone to do one quick task, and suddenly 20 minutes have flown by without you even noticing. How do apps do that to you? Science journalist Michaeleen Doucleff felt like her phone…

This distant planet has wild weather and gemstone clouds

May 29, 2026 9m

For many astronomers and astrophysicists there are two distinct, important periods: before the James Webb Space Telescope – and after. It has powered many scientific discoveries since it came online,…

Should we reengineer the world's deadliest animal?

May 27, 2026 11m

The most ferocious predator for us humans is actually quite small: the mosquito. They are hungry for blood, spreading diseases like malaria, yellow fever and dengue – and picking up new ones all the…

Is it getting windier?

May 26, 2026 11m

Is it getting windier? Long-time listener Barry Zalph thinks it is, at least in Louisville. And he’s not the only one. Redditors and local reporters have noticed a recent uptick in the region’s…

The magic — and science — of synchronous fireflies

May 25, 2026 13m

Every year for two weeks between mid-May and mid-June, Congaree National Park in South Carolina is home to a fairy-tale-like display of flashing lights. These rhythmic performances happen all because…

The supertree shielding coastlines and storing carbon

May 22, 2026 12m

Coastal fishing communities around the world are struggling with declining fish stocks. That’s because of climate change, environmental degradation and overfishing. But one tree – the humble mangrove…

Why renaming this common hormonal disorder is a huge deal

May 20, 2026 13m

You probably know someone who has a condition that, until last week, was known as PCOS, or polycystic ovary syndrome. It affects one in eight reproductive-aged women. But despite it being such a…

A solution for California's water woes

May 19, 2026 14m

For years, farmers in California have been pumping huge amounts of water from their wells to irrigate their crops. The state’s Central Valley is the nation’s single biggest source for many different…

What's up with your nightmares?

May 18, 2026 14m

Dreams of flying? Nightmares of teeth falling out? Falling off a cliff? As a sleep scientist at the University of Montreal, Michelle Carr has pretty much heard it all. In Michelle’s new…

A chemical found in fish could help reinvent your sunscreen

May 15, 2026 10m

It’s been over 25 years since the FDA approved a new ingredient for sunscreen in the United States. But a molecule called gadusol found in fish and coral reefs is a promising candidate. It absorbs…

Should you be fibermaxxing? Here's what the science says

May 13, 2026 12m

The average person eats 10-15 grams of fiber per day, according to the USDA. The problem? That’s WAY under the recommended daily amount. Fiber – a type of carb that our bodies are unable to digest –…

Why Swedish scientists gave salmon cocaine

May 12, 2026 10m

A recent study caught our eye: salmon on cocaine. Or really, researchers giving salmon cocaine…for science. See, scientists know human drugs pollute aquatic environments – past studies have shown…

Without this pill, lots of people would be dead

May 11, 2026 14m

25 years ago, the FDA approved a pill that would change the way scientists treat cancer … for good. The pill was called Gleevec; it was designed specifically to treat CML, chronic myeloid leukemia,…

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