Neil Degrasse Tyson, astrophysicist and Director of the Hayden Planetarium, does THREE IAMA's on Reddit: he is my hero. Read and be amazed.
Http://www.reddit.com/r/IAmA/comments/mateq/i_am_neil_degrasse_tyson_ask_me_anything/
Http://www.reddit.com/r/IAmA/comments/ngd5e/i_am_neil_degrasse_tyson_ask_me_anything/
http://www.reddit.com/r/IAmA/comments/qccer/i_am_neil_degrasse_tyson_ask_me_anything/
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