Neil deGrasse Tyson
@StarTalk·5.4M subscribers·1.8K videos
Neil deGrasse Tyson: Why Kepler-37b Is a Planet and Pluto Isn't
Posted
February 20, 2014
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41,602
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February 20, 2014
41,602
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1:08Now PlayingWhy is Kepler37b an exoplanet while Pluto has been demoted to a dwarf planet? It turns out size isn't everything, as astrophysicist Neil deGrasse Tyson explains to cohost Eugene Mirman when he answers a fan's Cosmic Query in this StarTalk Radio "Behind the Scenes" video. And if you love StarTalk Radio, don't miss out on any StarTalk news. Sign up for our free newsletter
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