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mtv

mtv

@mtv
MTV, USA
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Source
http://mtv.tumblr.com/post/133871331110/neil-degrasse-tyson-talks-about-joining-the
science side of tumblr neil degrassse tyson GIF by mtv
science side of tumblr neil degrassse tyson GIF by mtv
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#science side of tumblr

#neil degrassse tyson

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