Researchers report in the journal Science that they appear to have some clues about the origin of Earth's plutonium - which has been long debated. Correspondent Nell Greenfieldboyce explains that traces of rare forms of iron and plutonium have been found in extraterrestrial debris that had sunk to the bottom of the Pacific Ocean, hauled up by an oil company, then donated for research. By comparing the iron and the plutonium, scientists found the plutonium was likely forged in a cosmic cataclysm, perhaps a rare kind of supernova, and then rained down on Earth.Ever find yourself existentially musing? Wondering about the state of the cosmos? Drop us a line at shortwave@npr.org and we might jump into a wormhole with you.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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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
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Folge vom 26.05.2021The Curious Stardust At The Ocean Floor
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Folge vom 25.05.2021The State Of Vaccinations In The U.S.Eight states have passed an important milestone: getting 70% of all adults vaccinated with at least one shot. That's a number President Biden wants the country to reach by July Fourth. As cases of COVID-19 in the U.S. continue to come down, host Maddie Sofia talks with NPR health correspondent Allison Aubrey about vaccination progress around the country. Have questions about the latest coronavirus headlines? Email us at shortwave@npr.org and we might cover it on a future episode.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy
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Folge vom 24.05.2021'Off The Charts' Rise In Alcoholic Liver Disease Among Young Women**Heads up. This episode discusses addiction and alcoholism.**Some doctors are seeing a disturbing spike in lethal alcoholic liver disease, especially among young women. The recent trend has been supercharged, they say, in the pandemic. Emily Kwong speaks to NPR science correspondent Yuki Noguchi about this and some of the challenges to getting proper treatment. To read more on the story, check out Yuki's reporting here. You can email us at ShortWave@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy
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Folge vom 21.05.2021Who Should Control Earth's Thermostat?Solar geoengineering--the human attempt to cool the planet by reflecting sunlight away from Earth--is fraught with technological and ethical challenges. Maddie discusses some of these with contributor Ariela Zebede.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy