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Glaciers like the ones in Greenland are melting due to climate change, causing global sea levels to rise. That we know. But these glaciers are also moving. What we don't know is just how these two processes – melting and movement – interact and ultimately impact how quickly sea levels will rise. This encore episode, Jessica Mejía, a postdoctoral researcher in glaciology at the University of Buffalo, explains what it's like to live on a glacier for a month and what her research could mean for coastal communities all over the world.
Curious about other research happening around the globe? Email us at shortwave@npr.org — we'd love to hear from you!
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The U.S. is in the midst of a loneliness epidemic. And for a lot of people, the feeling is even more pronounced during the holidays. In addition to its emotional impact, chronic loneliness and social isolation have some dramatic health consequences: increased risk of heart disease and stroke, infections, cancer, even premature death. Recent research also suggests that loneliness can change the way people process the world. So today on the show, host Regina G. Barber talks to Rachel Carlson about the neuroscience of loneliness.
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Soon after the sun sets on winter nights, if you live in the northern hemisphere you can look into the sky and find the Orion constellation near the eastern horizon. Astrophysicist Sarafina El-Badry Nance has always been drawn to a particular star in Orion: Betelgeuse, a red supergiant nearing the end of it's life on the hunter's left shoulder.
But what stages of life did Betelgeuse — or any star — go through before it reached this moment?
Regina G. Barber talks to Sarafina about three winter constellations, and journey through the life cycle of a star.
Curious about the night sky? Email us at shortwave@npr.org — we'd love to hear from you!
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It's easy to overlook the soil beneath our feet, or to think of it as just dirt to be cleaned up. But soil wraps the world in an envelope of life: It grows our food, regulates the climate and makes the planet habitable. "What stands between life and lifelessness on our planet Earth is this thin layer of soil that exists on the Earth's surface," says Asmeret Asefaw Berhe, a soil scientist at the University of California-Merced.
In honor of World Soil Day tomorrow, we're revisiting our conversation with Prof. Berhe, who is also serving as Director of the U. S. Dept. of Energy's Office of Science. She talks to Aaron about the hidden majesty of soil and why it's crucial to tackling the climate crisis.
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Sleep. It's an essential biological function that has long intrigued scientists. Researchers have studied everything from mice to fruit flies in the lab to get a better understanding of what happens when animals sleep — and why so many do it. This week, scientists finally added one piece to the elusive sleep puzzle: How wild chinstrap penguins sleep amid their noisy colony. Turns out, they do it over 10,000 times in seconds-long bursts throughout the day — totaling 11 hours when all is said and done.
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In which we meet the pioneers of one of the most exciting — and controversial — fields of biomedical research: in vitro gametogenesis, or IVG. The goal of IVG is to make unlimited supplies of what Hayashi calls "artificial" eggs and sperm from any cell in the human body. That could let anyone — older, infertile, single, gay, trans — have their own genetically related babies. As such, the field opens up a slew of ethical concerns.
But that isn't stopping researchers from pressing forward.
So, this episode NPR science correspondent Rob Stein gives us a glimpse into the global race to create the first artificial human embryos to see how the competition is unfolding.
Want to hear more cutting-edge technology? Email the show at shortwave@npr.org.
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As kids, some of us dream of multiple careers: being an astronaut AND the next president. Or digging up dinosaurs AND selling out concert stadiums. As we get older, there's pressure to pick one path. But what if we didn't have to?
After all, John Urschel didn't. He's a mathematician and professor at MIT. But before that, he played football for the Baltimore Ravens. Today on the show, Monday night football! Host Regina G. Barber talks to Urschel about linear algebra and following his dream of becoming a mathematician while living the dream as a NFL player.
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Walking into Karen Chin's office at the University of Colorado, Boulder, one of the first things you might notice is that petrified poops are everywhere. They're in shallow boxes covering every surface and filling up shelves, cabinets and drawers. She's a leading expert in the fossils, known as coprolites. They delight her because of what they reveal about the ancient eating habits and food webs of dinosaurs — rare insights for the paleontology world. This episode, she talks with Short Wave co-host Aaron Scott about the lessons scientists can learn from ancient poopetrators.
Interested in learning more ancient or scatological mysteries of science? Email us at shortwave@npr.org — we might cover it on a future episode!
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Turkey is the usual centerpiece of the Thanksgiving dinner, but it's all too easy to end up with a dry, tough, flavorless bird. For NPR science correspondent Maria Godoy, it got so bad that several years ago, her family decided to abandon the turkey tradition altogether. Can science help her make a better bird this year? That's what she hopes as she seeks expert advice from food science writers and cookbook authors Nik Sharma and Kenji López-Alt.
Want to know what other delectable food secrets science has to offer? Email shortwave@npr.org and we just might find out for you!
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Every five years, the United States government releases the National Climate Assessment, a comprehensive analysis of how climate change is affecting the country. The fifth assessment was recently released. It's the first to include includes standalone chapters about climate change's toll on the U.S. economy, as well as the complex social factors driving climate change and the nation's responses. Climate reporters Rebecca Hersher and Alejandra Borunda walk us through three major takeaways from the report: the economics, the negative human health effects and the unequal burden people face. Plus, a silver lining: All the ways the U.S. is making progress to slow the effects of climate change.
Read Rebecca and Alejandra's full piece here.
Want to hear a climate story? Email us at shortwave@npr.org.
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