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Ready to become a space emigre? For half a century, visionaries have been talking about our future off-Earth \u2013 a speculative scenario in which many of us live in space colonies. So why haven\u2019t we built them? Will the plans of billionaire space entrepreneurs to build settlements on Mars, or orbiting habitats that would be only minutes away from Earth, revive our long-held spacefaring dreams? And is having millions of people living off-Earth a solution to our problems\u2026 or an escape from them?\nGuests:\nMarianne Dyson\xa0\u2013 Author and former NASA flight controller\nEmily St. John Mandel\xa0\u2013 Author, most recently of \u201cSea of Tranquility\u201d\nJohn Adams\xa0\u2013 Deputy Director, Biosphere 2, University of Arizona\nFeaturing music by\xa0Dewey Dellay\xa0and\xa0Jun Miyake\nBig Picture Science is part of the\xa0Airwave Media\xa0podcast network.\xa0Please contact\xa0sales@advertisecast.com\xa0to inquire about advertising on Big Picture Science.\nYou can get early access to ad-free versions of every episode by joining us on\xa0Patreon. Thanks for your support!\n\xa0\nLearn more about your ad choices. Visit megaphone.fm/adchoices