92 | Kevin Hand on Life Elsewhere in the Solar System

92 | Kevin Hand on Life Elsewhere in the Solar System

It's hard doing science when you only have one data point, especially when that data point is subject to an enormous selection bias. That's the situation faced by people studying the nature and prevalence of life in the universe. The only biosphere we know about is our own, and our knowing anything at all is predicated on its existence, so it's unclear how much it can teach us about the bigger picture. That's why it's so important to search for life elsewhere. Today's guest is Kevin Hand, a planetary scientist and astrobiologist who knows as much as anyone about the prospects for finding life right in our planetary backyard, on moons and planets in the Solar System. We talk about how life comes to be, and reasons why it might be lurking on Europa, Titan, or elsewhere.

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Kevin Hand received his Ph.D. in Geological and Environmental Sciences from Stanford University. He is currently Deputy Chief Scientist for Solar System Exploration at NASA's Jet Propulsion Laboratory. He has collaborated with director James Cameron, and is a frequent consultant on films, including acting as a science advisor to the movie Europa Report. His a cofounder of Cosmos Education, a non-profit organization devoted to science education in developing countries. His new book is Alien Oceans: The Search for Life in the Depths of Space.


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If you tell me that one of the world's leading neuroscientists has developed a theory of how the brain works that also has implications for the origin and nature of life more broadly, and uses concept...

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Anyone who has read histories of the Cold War, including the Cuban Missile Crisis and the 1983 nuclear false alarm, must be struck by how incredibly close humanity has come to wreaking incredible dest...

2 Mars 20201h 40min

85 | L.A. Paul on Transformative Experiences and Your Future Selves

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It's hard to make decisions that will change your life. It's even harder to make a decision if you know that the outcome could change who you are. Our preferences are determined by who we are, and the...

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84 | Suresh Naidu on Capitalism, Monopsony, and Inequality

84 | Suresh Naidu on Capitalism, Monopsony, and Inequality

Nations generally want their economies to be rich, robust, and growing. But it's also important to person to ensure that wealth doesn't flow only to a few people, but rather that as many people as pos...

17 Feb 20201h 26min

83 | Kwame Anthony Appiah on Identity, Stories, and Cosmopolitanism

83 | Kwame Anthony Appiah on Identity, Stories, and Cosmopolitanism

The Greek statesman Demosthenes is credited with saying "I am a citizen of the world," and the idea that we should take a cosmopolitan view of our common humanity is a compelling one. Not everyone agr...

10 Feb 20201h 38min

82 | Robin Carhart-Harris on Psychedelics and the Brain

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The Convention on Psychotropic Substances was a 1971 United Nations treaty that placed strong restrictions on the use of psychedelic drugs — not only on personal use, but medical and scientific resear...

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