Twitter / Joshua Topolsky: Dr. Neil deGrasse Tyson on ...

http://twitter.com/joshuatopolsky/status/183662812814524417

@joshuatopolsky: Dr. Neil deGrasse Tyson on what it's like to be a meme. A taste from our forthcoming show! http://t.co/H0ppN4hj

Saved on Mar 24, 2012

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