Neil deGrasse Tyson: When do we have to leave this planet? - Couple Thinkers - EP 2 1 year ago

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The second episode of Couple Thinkers finds Craig and Megan asking some big, big questions – about Earth, the universe, alien life, and the future of humanity. Thankfully, world-renowned astrophysicist Neil deGrasse Tyson is on hand to shed some light on the topic and answer the question: ““When do we have to leave this planet?”