Episodios

  • Big porpoise energy

    Big porpoise energy
    Jun 17 2026
    Whales have Free Willy. Dolphins have Flipper. But what about the humble porpoise? The porpoise doesn’t star in any Hollywood blockbusters. These shy, elusive “deer of the sea” are often overshadowed by their more charismatic cousins – but don’t let their social anxiety fool you. In fact, porpoises are speed-fiends with an insane metabolism and an outrageous sex drive. Host Nate Hegyi and producer Marina Henke explore the Olympic sprinters of the sea and wonder if the fate of the endangered vaquita might hinge on being oh-so-very-cute. Featuring Michelle Dutro, Barb Lake and Ruxandra Guidi. Produced by Nate Hegyi. For full credits and transcript, visit outsideinradio.org. Ripped logo credit: Jeremy Keith / Flickr SUPPORT We launched a Patreon! Become an Outside/Insider for just $5 a month, and you can get AD-FREE episodes of the podcast, plus access to behind-the-scenes blog posts and more. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKS The second season of Rux Guidi’s podcast, The Catch, covered the plight of the vaquita. In 1999, the Department of Defense studied the speed and hydrodynamics of dolphins, whales and porpoises to build better underwater drones. Here’s a picture of a porpoise penis, but don’t say we didn’t warn you. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    31 m
  • A tinned fish renaissance

    A tinned fish renaissance
    Jun 10 2026
    We launched a Patreon! Become an Outside/Insider for just $5 per month, and you can get AD-FREE episodes of the podcast, plus access to behind-the-scenes blog posts and more. Sardines are in vogue. Literally. They are in Vogue magazine. They’re delicious (subjectively), good for you, and sustainable… right? Recently, a listener called into the show asking about just that. “I've always had this sense that they're a more environmentally friendly fish, perhaps because of being low on the food chain. But I'm realizing I really have no sense of what it looks like to actually fish for sardines,” Jeannie told us. The Outside/In team got together to look beyond the sunny illustrations on the fish tins. Is there bycatch? What about emissions? Are sardines overfished? If we care about the health of the ocean, can we keep eating sardines? This episode was originally published in 2025. Featuring Jeannie Bartlett, Malin Pinsky, and Zach Koehn. Rip logo photo: Canned seafood by Jack Kennard (CC BY-NC-ND 2.0). Produced by Justine Paradis. For full credits and transcript, visit outsideinradio.org. SUPPORT Outside/In is made possible with listener support. Click here to join our Patreon and get ad-free episodes of the podcast. Follow Outside/In on Instagram or join our private discussion group on Facebook. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    39 m
  • Never add sodium to your pasta water

    Never add sodium to your pasta water
    Jun 3 2026
    Put salt (aka sodium chloride) in your pasta water and you’ll end up with delicious spaghetti. Put pure sodium in it instead… and it will explode. It’s the latest edition of “The Element of Surprise,” our occasional series about the hidden stories behind the periodic table’s most unassuming atoms, isotopes, and molecules. This time we’re talking all about sodium. It’s the periodic table’s saltiest element. It powers your body like a battery and you need it to survive. So why is too much of it bad for you? Plus, how did salt help the North win the Civil War? Featuring Raychelle Burks, Trisha Pasricha, Ashley Dumas. Produced by Felix Poon. For full credits and transcript, visit outsideinradio.org. SUPPORT Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKS Watch a 1947 newsreel of the US Army disposing thousands of pounds of pure sodium into a lake in Washington State, causing massive explosions. See images of the Slanic Salt Mine in Romania and the Wieliczka Salt Mine in Poland, now major tourist sites. Check out Theodore Gray’s “Sodium Party” YouTube video series where he drops sodium chunks of various sizes into water to observe how they explode. Here’s the first video in the series.Want to learn more about the role of salt throughout human history? Read Mark Kurlansky’s Salt: A World History. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    32 m
  • A cow named Speckles

    A cow named Speckles
    May 27 2026
    When 10-year-old Doug Crandell joined the 4-H program, he was supposed to learn about raising, feeding, and selling a cow. What he wound up learning was something else entirely. “I wanted to be a hog man, like my father,” he said. “But I knew pretty early on that you couldn’t have these animals forever.” From producer Shaina Shealy, this is the story of a boy and his cow, Speckles. Featuring Doug Crandell. Produced by Shaina Shealy. For full credits and transcript, visit outsideinradio.org. SUPPORT Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    33 m
  • In defense of darkness

    In defense of darkness
    May 20 2026
    Megan Eaves-Egenes grew up under the very starry skies of rural New Mexico. During those years, she developed a deep appreciation for astronomy. The fascination is, of course, not hers alone. But, a starry sky requires one pretty important ingredient: darkness. One study recently reported that since 2011, the night sky has gotten brighter at about 10% per year. All that light pollution has brought dire consequences to life on planet earth. Crickets can’t tell whether it’s day or night, bird migrations have gone haywire, and our own natural alarm clocks are constantly confused. In a world where switching on a lamp during evening hours is, as Megan writes, “almost as basic as breathing” is there hope for our night skies? Or have we illuminated our way to a point of no return? Featuring Megan Eaves-Egenes. SUPPORT To share your questions and feedback with Outside/In, call the show’s hotline and leave us a voicemail. The number is 1-844-GO-OTTER. No question is too serious or too silly. Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram and BlueSky, or join our private discussion group on Facebook. LINKS You can order a copy of Megan’s book Nightfaring: In Search of the Disappearing Darkness on her website. Want to plan travel around dark sky locations? Dark Sky International offers a variety of guides and tips on how to visit darky sky locations responsibly. There are many popular stargazing apps. Megan uses SkyView, but also recommends Stellarium or SkySafari. Learn more about satellite’s role in light pollution from our 2024 episode, “The new space race.” Made nearly 10 years ago, here is our episode about light pollution emitted from a New Hampshire greenhouse. CREDITS Produced by Marina Henke. For full credits and transcript, visit outsideinradio.org Learn more about your ad choices. Visit megaphone.fm/adchoices
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    36 m
  • Life and death and psilocybin

    Life and death and psilocybin
    May 13 2026
    President Trump recently signed an executive order to make certain psychedelic drugs more available to treat mental health conditions like depression and PTSD. Robert F. Kennedy Jr. and Joe Rogan were in the oval office, and President Trump even joked during the signing ceremony, “can I have some, please?” Maybe this executive order wasn’t on your 2026 political bingo card… but interest in these substances for mental health isn’t new. In this episode, we’re revisiting the story of Kathy Kral. In the midst of her battle with cancer, Kathy found herself facing a diagnosis of major depression. So, she signed up for a clinical study to see if psilocybin – the psychedelic compound found in “magic mushrooms” – could help her confront her fears about cancer and death, as well as her deepest inner demons. This episode was first published in 2023. Featuring Kathleen Kral, Manish Agrawal, and Norma Stevens. Produced by Felix Poon. For full credits and transcript, visit ⁠outsideinradio.org⁠. SUPPORT Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKS Trump’s order is a milestone for proponents of using psychedelics as medicine. (NPR) Listen to the Sunstone Psilocybin Spotify Playlist that patients listen to during their psychedelic-assisted therapy sessions. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    33 m
  • Silicon Planet

    Silicon Planet
    May 6 2026
    Like a typecast actor who can’t escape the blockbuster franchise they’re known for, the element of silicon is inescapably associated with Silicon Valley. But that association undersells just how important, how foundational silicon is for human civilization. It’s another edition of “The Element of Surprise,” our occasional series about the hidden stories behind the periodic table’s most unassuming atoms, isotopes, and molecules. And this time, it’s all about silicon. From humankind’s early tools, to the quartz crystal hidden in your digital watch, we’ll cover how this underrated element has a lot more to offer than one California valley might suggest. Featuring Vince Beiser, Megan Brewster, and Rachel Maines. Produced by Taylor Quimby. For full credits and transcript, visit outsideinradio.org. SUPPORT Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKS Still confused about the difference between silicon, silica, and silicone? We think this explanation is helpful. See the inside of a silicon wafer fab. It’s wild. Or watch this old video on how silicon wafers are made. Also wild. If you are very into watches, you might enjoy this detailed history of how the “Quartz Crisis” upended the Swiss watch industry. Want to learn more about the environmental impacts of sand mining? Check out this 2019 UNEP report. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    33 m
  • A Dry Hot American Summer

    A Dry Hot American Summer
    Apr 29 2026
    In the spring of 1936, the producer of King Kong hauled a film crew to the desert of Arizona to shoot a sweeping romantic epic. But the heat was so punishing that it melted film stock, caused the lead actress to pass out, and killed the production’s mascot – a baby camel. It was the beginning of a heat wave that parked itself over America for months, quickly becoming one of the deadliest natural disasters in our country’s history. It blew up sidewalks, cooked onions in the ground, claimed at least 12,000 lives, and turned the United States into a literal frying pan. Host Nate Hegyi talks with Geoff Williams, author of the forthcoming book The Summer of Death, about a ‘heat horror show’ that transformed American life 90 years ago, and what lessons it gives us on how to survive a hotter world today. Featuring Geoff Williams Produced by Nate Hegyi. For full credits and transcript, visit outsideinradio.org. SUPPORT Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram or join our private discussion group on Facebook. LINKS You can check out Geoff’s book, The Summer of Death, here. President Franklin Delano Roosevelt gave a speech about the impacts of the drought and heat wave in the fall of 1936. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    31 m