Astrophysicist Neil deGrasse Tyson is the Director of the Hayden Planetarium in New York City, host of the PBS series NOVA Science Now and co-host (with comedienne Lynne Koplitz) of the radio show Star Talk. He is the author of nine books including his memoir The Sky is Not the Limit: Adventures of an Urban Astrophysicist and his most recent, The Pluto Files: The Rise and Fall of America's Favorite Planet.
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the science network, Neil deGrasse Tyson, Hayden Planetarium, PBS, NOVA, Lynne Koplitz, star talk, The Sky is Not the Limit, adventure, urban, pluto files, rise and fall, america's favorite planet, documentary, free, watch, online
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