Episodes

  • A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment

    A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment
    May 7 2026
    First up on the podcast, along Brazil’s Juruá River, local residents have been working with scientists to manage a giant fish called the arapaima—affecting the land, the people, and the economy. Contributing Correspondent Warren Cornwall joins host Sarah Crespi to talk about this collaborative effort. Next on the show, how moonlight affects nocturnal animals. Carlos Camacho, a researcher at the Doñana Biological Station, talks about the Moon-inflected habits of a nighttime foraging bird, the red-necked nightjar. His team found that the extra light provided by the full Moon allows these birds to consume more insects at night. And the timing of their long-haul migration between Europe and Africa is linked to the cycles of the Moon. Last up this week, Science Editor-in-Chief Holden Thorp talks with Timothy Snyder, historian and author of the book On Tyranny: Twenty Lessons from the Twentieth Century. They discuss the role of institutions, professional ethics, and personal beliefs for scientists in tough political times. This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices
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    54 mins
  • Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame

    Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame
    Apr 30 2026
    First up on the podcast, Online News Editor David Grimm shares a batch of fun stories with podcast host Sarah Crespi—from spider hearts racing when traffic gets loud to a disease-preventing house. Staff Writer Adrian Cho hops in to help discuss the possibility of black holes without singularities at their center. Next on the show, epigenetics has become a hot topic in pop science but the ethical conversation is not keeping up. The idea that parents can pass down epigenetic marks from environmental toxins or trauma to their children—without changes in DNA—has been around for decades but the research in people is lacking. Jackie Leach Scully, a professor of bioethics and director of the Disability Innovation Institute at the University of New South Wales, discusses where the research actually is and the concerns that may arise if such marks do appear to impact the young. Last up this week, we are launching our 2026 biography books series with books host Angela Saini and Science books editor Valerie Thompson. The pair discusses the difficulty of picking biographies and what can be learned about science, fame, and researchers as people from reading these types of books. This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices
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    47 mins
  • Cleaning up uranium mining, and how the heart avoids cancer

    Cleaning up uranium mining, and how the heart avoids cancer
    Apr 23 2026
    First up on the podcast, freelance science and environmental journalist Quentin Septer joins host Sarah Crespi to talk about a controversial uranium mine getting fast-tracked in South Dakota. Septer chatted with locals, scientists, and regulators to learn more about the geology of the region and the promise of cleanup after the miners go home. Next on the show, looking at cells that don’t get cancer. Giulio Ciucci, a postdoctoral researcher at the International Centre for Genetic Engineering and Biotechnology, talks about the infrequency of heart cancer and how the mechanical load that heart cells endure makes them resist turning cancerous. *CORRECTION: In the on this site summary in this episode, the book author in the review by Kai Kupferschmidt was listed incorrectly. The correct information is: True Color by Kory Stamper, Knopf, 2026. This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices
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    31 mins
  • The normals | Episode 3

    The normals | Episode 3
    Apr 21 2026
    The final of a three-part limited Science Podcast series that looks at the history of normal human subjects in research In episode two, we heard what happened to the normals program after church volunteers came to the U.S. National Institutes of Health’s Clinical Center—and were surprisingly happy despite going through sometimes-painful procedures. In the decades to follow, the program got bigger as government funding expanded and started to recruit more broadly, stepping away from specific religious groups toward recruiting from colleges, universities, and unions. In this episode, we hear about how normal human subjects experience research today and the ways the normals project influenced oversight and safety for these sometimes vulnerable people. All episodes in this series Appearing in this episode: Laura Stark, history professor at the Center for Medicine, Health, and Society at Vanderbilt University Jill Fisher, professor of social medicine in the Center for Bioethics at the University of North Carolina at Chapel Hill Kaviya Manoharan, lecturer and clinical research program manager in the Centre for Clinical Pharmacology, SRM Medical College Hospital and Research Centre Martin Enserink, deputy news editor at Science Kevin McLean, Science multimedia managing producer Sarah Crespi, Science Podcast senior host and producer Additional resources: BOOKS The Normals: A People’s History of Modern America in Five Human Experiments by Laura Stark Adverse Events: Race, Inequality, and the Testing of New Pharmaceuticals by Jill Fisher NEWS STORIES Global effort aims to protect health and safety of human ‘guinea pigs’ in drug trials by Martin Enserink Key global bioethics guidelines get ‘dramatic’ update by Cathleen O’Grady WEBSITES Volrethics Learn more about your ad choices. Visit megaphone.fm/adchoices
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    33 mins
  • How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting

    How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting
    Apr 16 2026
    First up on the podcast, quantum computers require extremely low temperatures—less than 1°C away from absolute zero. But getting down to those temperatures has usually required dilution fridges using the extremely rare and increasingly expensive isotope helium-3. Freelance science journalist Zack Savitsky joins host Sarah Crespi to discuss up-and-coming technologies that can drive down temperatures while staying helium-3–free. Next on the show, Nizan Packin, a professor of law at the Zicklin School of Business at Baruch College, talks about prediction markets as a public health threat. Early on, prediction markets were proposed as a way to make reliable forecasts from crowdsourced wisdom. With the appearance of commercial, for-profit prediction markets linked with cryptocurrency and sports betting, Nizan and colleagues ask what studies should be done to better understand potential harms to the public. Finally, in a Working Life column this week, recent Ph.D. graduate Filippo Dall’Armellina wrote about how his foray into science podcasting helped him regain enjoyment of research. He talks about why having a science-adjacent hobby was life changing. This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices
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    51 mins
  • The Normals | Episode 2

    The Normals | Episode 2
    Apr 14 2026
    Last time on The Normals, we learned that in the 1950s, the National Institutes of Health (NIH) wanted to recruit many healthy volunteers for basic research. Two peace churches, the Mennonites and the Church of the Brethren, had an excess of healthy human volunteers. The “Normals” recruited from these Anabaptist churches were surprisingly happy, even as they went through sometimes painful procedures. In this follow-up episode, we hear about how the sources of normal human subjects changed in the 1960s and why NIH researchers felt they needed to expand their search for normal people. We also learn about the first death in the program and the shifting motives on the parts of the researchers and volunteers. Final episode drops next Tuesday, April 21. All Normals episodes In this episode: Laura Stark, history professor at the Center for Medicine, Health, and Society at Vanderbilt University Ken Naas, former Normal patient Cindy Jansen, former Normal patient Dale Horst, former Normal patient Sarah Crespi, Science Podcast senior host and producer Additional resources: The Normals: A People’s History of Modern America in Five Human Experiments by Laura Stark Learn more about your ad choices. Visit megaphone.fm/adchoices
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    27 mins
  • A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion

    A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion
    Apr 9 2026
    First up on the podcast, freelance science journalist Hannah Richter joins host Sarah Crespi to discuss NASA’s plans to send a nuclear-powered spacecraft to Mars in less than 3 years. Having not launched a fission reactor to space in more than 60 years, the organization faces many technical and bureaucratic hurdles to make that deadline. Next on the show, Aaron Sandel, associate professor in the Department of Anthropology at the University of Texas at Austin and co-director of the Ngogo Chimpanzee Project, reports this week in Science on what looks like a chimpanzee civil war. The unprecedented violent split occurred in a large chimp colony that has been tracked by researchers for decades. Now, scientists are asking: What can the lethal division of a chimp community teach us about human conflict? This week’s episode was produced with help from Podigy. About the Science Podcast Learn more about your ad choices. Visit megaphone.fm/adchoices
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    42 mins
  • The Normals | Episode 1

    The Normals | Episode 1
    Apr 7 2026
    How do we know what's normal in a person? In the early 1950s, the National Institutes of Health (NIH) set out to do something unprecedented. It wanted to start studying normal humans on a grand scale. It had pretty much everything in place: It had the building, it had recruited all of these amazing researchers—it was the healthy human bodies NIH didn't have. How do we know what’s normal in a person? In the early 1950s, the U.S. National Institutes of Health (NIH) set out to do something unprecedented. It wanted to start to study normal humans on a grand scale. It had pretty much everything in place: It had the building, it had recruited all of these amazing researchers—it was the healthy human bodies NIH didn’t have. When the healthy subjects arrived, experimenters tested LSD, sleep devrivation, rice-only diets, and more risky intervetions on them. Where it found those volunteers and what happened next is the story of The Normals. Starting on 7 April, the Science Podcast will be releasing a new three-part limited series called The Normals. We'll hear from some of the original “Normals,” follow the program through the decades, and see what's happening with healthy human subject research today. All Normals episodes Appearing in this episode: Laura Stark, history professor at the Center for Medicine, Health, and Society at Vanderbilt University Dale Horst, former Normal patient Shirley Burry Geissinger, former Normal patient Sarah Crespi, Science Podcast senior host and producer Additional resources: The Normals: A People’s History of Modern America in Five Human Experiments by Laura Stark Learn more about your ad choices. Visit megaphone.fm/adchoices
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    24 mins