NPR

Short Wave

Science EN ↓ 1518 episodes

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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NPR

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Science

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www.npr.org

Latest episode

Jul 10, 2026

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Episodes

A Science Reporter And A 'Mild' Case Of Breakthrough COVID 27.09.2021

Will Stone is a science reporter for NPR. He's been reporting about the pandemic for a while now, so he knows the risks of a breakthrough infection, is vaccinated, and follows COVID guidelines as they change. Nonetheless, he got COVID - and today on the show, Will shares what he learned about his breakthrough infection, and what he wish he'd known before his "mild" case. For more of Will's reporti...

After Years Of Delays, NASA's James Webb Space Telescope To Launch In December 24.09.2021

In December, NASA is scheduled to launch the huge $10 billion James Webb Space Telescope , which is sometimes billed as the successor to the aging Hubble Space Telescope. NPR correspondents Rhitu Chatterjee and Nell Greenfieldboyce talk about this powerful new instrument and why building it took two decades. For more of Nell's reporting on the telescope, check out " NASA Is Launching A New Telesco...

The Surf's Always Up — In Waco, Texas 23.09.2021

Some of the world's best artificial waves are happening hundreds of miles from the ocean—in Waco, Texas. They're so good, they're attracting top professionals, casual riders and a science correspondent named Jon Hamilton. Jon's been following the wave technology for years and says the progress is huge. These days, pro surfers are coming from all over to try out Waco's "Freak Peak." Read more of Jo...

Mapping The Birds Of Bougainville Island 22.09.2021

In the early 1900s, the Whitney South Sea expedition gathered 40,000 bird specimens for the American Museum of Natural History. The collection is an irreplaceable snapshot of avian diversity in the South Pacific, but is missing key geographic data. To solve this mystery, student researchers dug into field journals to determine where birds from one island came from. See pcm.adswizz.com for informat...

How Long Does COVID Immunity Last Anyway? 21.09.2021

With booster shots on the horizon for some people, one of the biggest questions is: Am I still protected against COVID-19 if I've only had two doses of the vaccine? As science correspondent Michaeleen Doucleff reports, the answer is...complicated. Read more of Michaeleen's reporting on COVID immunity: https://n.pr/2XIQ6KX Reach the show by emailing shortwave@npr.org . See pcm.adswizz.com for infor...

Afraid of Needles? You're Not Alone 20.09.2021

Many people are afraid of needles in some capacity — about 1 in 10 experience a "high level" of needle fear, says clinical psychologist Meghan McMurtry . But that fear is often underrecognized or misunderstood. That's why today's show is all about needle fear: what it is, tools to cope, and why it's important to address beyond the pandemic. Some strategies Meghan suggests to help cope with the fea...

A Great Outdoors For Everyone 17.09.2021

Fatima's Great Outdoors , a new children's book, centers on a girl named Fatima, who's struggling to adjust to her new life in the U.S. But on her very first camping trip with her family, Fatima unexpectedly discovers courage and joy in the outdoors. Today on the show, Emily talks to Ambreen Tariq about her new book and her social media initiative, BrownPeopleCamping. For Tariq, both efforts are a...

A Lotl Love For The Axolotl 16.09.2021

It is found in only one lake in the world, never grows up, and occasionally takes bites of its friends: who could we be talking about? The axolotl of course! With some help from Dr. Luis Zambrano , producer Berly McCoy tells us all about this remarkable creature and the ongoing efforts to protect axolotls from extinction. See pcm.adswizz.com for information about our collection and use of personal...

Climate Change Means More Subway Floods; How Cities Are Adapting 15.09.2021

Millions of people rely on subways for transportation. But as the world warms, climate-driven flooding in subways is becoming more and more common. NPR correspondents Lauren Sommer and Rebecca Hersher talk about how cities across the world are adapting. For more of Rebecca's reporting on climate-driven flooding, check out " NYC's Subway Flooding Isn't A Fluke. It's The Reality For Cities In A Warm...

Breakthrough Infections, Long COVID And You 14.09.2021

In rare cases, the delta variant of the coronavirus is causing vaccinated people to get sick — so-called "breakthrough infections." Now researchers are asking: Could these infections lead to long COVID, when symptoms last weeks and months? Today, science correspondent Rob Stein makes sense of the latest data, explaining what we know so far about long COVID in vaccinated people. Read more of Rob's...

The Pervasiveness Of Transgender Health Care Discrimination 13.09.2021

A new report from the Center for American Progress finds that nearly half of transgender people have experienced mistreatment at the hands of a medical provider. NBC OUT reporter Jo Yurcaba explains the long-term impacts of this discrimination, plus a few potential solutions. • "Nearly half of trans people have been mistreated by medical providers, report finds," NBC OUT • "Protecting and Advancin...

9/11 First Responders Have Higher Cancer Risks But Better Survival Rates 10.09.2021

Twenty years later, first responders during the 9/11 attacks have an increased risk of getting some kinds of cancer. But, research shows that they're also more likely to survive. Host Emily Kwong talks to NPR correspondent Allison Aubrey about why. Read more about Allison's reporting here . You can follow Emily on Twitter @EmilyKwong1234 and Allison @AubreyNPR . Email Short Wave at ShortWave@NPR.o...

For Successful Wildfire Prevention, Look To The Southeast 09.09.2021

Another destructive fire season has Western states searching for ways to prevent it. As climate correspondent Lauren Sommer reports, some answers might lie in the Southeastern U.S. The region leads the country in setting controlled fires — burns to clear vegetation that becomes the fuel for extreme fires. Read more of Lauren's reporting on wildfire prevention. ( https://www.npr.org/2021/08/31/1029...

Fewer COVID Vaccine Doses Materialized Last Fall Than The U.S. Government Hoped 08.09.2021

Manufacturers can expect to face unforeseen hurdles when they begin to mass-produce a brand new pharmaceutical product, and in a pandemic, there are bound to be supply chain problems as well. But in late 2020, Pfizer was delivering fewer doses than the government expected and then-federal officials told NPR they did not know why. See pcm.adswizz.com for information about our collection and use of...

The Peculiar Case Of Dark Matter 07.09.2021

The universe is so much bigger than what people can see, and astrophysicist Priyamvada Natarajan is trying to figure out that which we can not see. Producer Rebecca Ramirez talks with Priya and reports on the theory about some of the secret scaffolding of the universe: dark matter. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your...

So Long, Sofia 03.09.2021

Today, we bid farewell to our founding host, Maddie Sofia! In this special episode, the Short Wave team and some of our listeners remind Maddie of the huge impact she's had on all of us. There is laughter, a lot of crying, and so, so much appreciation for our duderino. Maddie, may you come back into our orbit soon. We're so excited to cheer you on in your future adventures! See pcm.adswizz.com for...

Nudibranchs Do It Better 02.09.2021

Maddie and Emily get super nerdy one last time as they dive into the incredible world of nudibranchs. Not only are these sea slugs eye-catching for their colors, some of them have evolved to "steal" abilities from other organisms — from the power of photosynthesis to the stinging cells of their venomous predators. These sea slugs are going to blow your mind! You can email Short Wave at shortwave@n...

Pandemic Dispatches From The ER 01.09.2021

We're marking Maddie's last week on Short Wave! Today, Maddie wanted to highlight a COVID-related episode from earlier this year. The pandemic has been a big part of our coverage and this particular episode stands out. We hear reflections from two emergency room health workers on the pandemic, how their lives have changed and their hopes as more and more people get vaccinated. Tomorrow, a new epis...

You Mite Want To Shower After This 31.08.2021

It's Day 2 of our trip down Maddie Sofia memory lane! Today's encore episode is all about how you're never really alone. We look at the tiny mites that live on your skin — including your face. They come out at night and mate. And we're not totally sure what they eat. See? Don't you feel better already? Researcher Megan Thoemmes tells us about the lives of these eight-legged creatures — and what th...

Why A Good Scare Is Sometimes The Right Call 30.08.2021

This week is our last with Maddie as a host, so we're spending it with a trip down memory lane. The first episode Maddie invites us to relive and enjoy is our first listener question episode on the science behind thrill-seeking. She talks to psychologist Ken Carter about why some people love to get scared. Reach the show by emailing shortwave@npr.org . See pcm.adswizz.com for information about our...

Is It Muggy Out? Check The Dew Point! 27.08.2021

Going on a run and curious about how muggy it's going to be out? Maddie Sofia chats with producer Thomas Lu about relative humidity and why some meteorologists are telling us to pay more attention to dew point temperature, not relative humidity. Plus — how moisture in the air and temperature influence the way our body "feels" when we're outside. Click here for the National Weather Service Heat Ind...

The Fight To Save Sunflower Sea Stars 26.08.2021

Sunflower sea stars play a key role in ocean ecosystems on the West Coast - and they are disappearing in record numbers. Science correspondent Nell Greenfieldboyce tells us about the plight of the Sunflower sea star and one biologist's unique fight to save them. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship...

How To Start Hormone Replacement Therapy 25.08.2021

Medical transition-related treatments like hormone replacement therapy are associated with overwhelmingly positive outcomes in terms of both physical and mental health for transgender people. But, it can be hard to know exactly how to get started. Reporter James Factora explains where to start, common misconceptions about HRT, and the importance of finding community through the process. Read James...

Ultracold Soup - The 'Superfluid' States Of Matter 24.08.2021

(Encore episode) Class is back in session. We're going "back to school" to dig a little deeper on a concept you were taught in school: states of matter. Today, Emily and Maddie explore OTHER states of matter — beyond solid, liquid, gas, and plasma. Martin Zwierlein , professor of physics at Massachusetts Institute for Technology (MIT), discusses his work with ultracold quantum gases and observing...

To Build, Or Not To Build? That Is The Question Facing Local Governments 23.08.2021

NPR climate correspondent Lauren Sommer talks with Emily about a dilemma facing many local governments now. Should they develop in areas vulnerable to rising sea levels? On today's episode, we look at Sunnyvale, California, in the San Francisco Bay Area. It's a situation complicated by a landowner that really wants to continue expanding there, Google. In an episode last week, we asked who should b...

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