Alternative Aliens with Andy Weir and David Grinspoon

StarTalk Radio - A podcast by Neil deGrasse Tyson

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What do Aliens look like? In this episode, Neil deGrasse Tyson and comic co-host Chuck Nice talk aliens with David Grinspoon, “Dr. Funkyspoon,” featuring Neil's interview with The Martian author, Andy Weir, on his new book Project Hail Mary.