#168 The Case for Space Travel: Neil deGrasse Tyson

Neil deGrasse Tyson, America’s most prominent spokesman for science and Director of New York City’s Hayden Planetarium, talks about the benefits of a cosmic perspective, the case for manned space flight and much more in this first part of our wide-ranging conversation. We also discussed Tyson's book, "Astrophysics for People in a Hurry."

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