Tuesday, November 5, 2013

Alien Planets & Eyeball Earths: The Search for Habitable Planets

http://www.youtube.com/v/vSKAccC_mOQ?autohide=1&version=3&attribution_tag=vUu1b16VntXOjxb-EEBa6w&autohide=1&autoplay=1&feature=share&showinfo=1
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