Season 1 · Episode 16
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Alien Planets & Eyeball Earths: The Search for Habitable Planets
Mon, Feb 21, 2011
·
26 min
The hunt for planets beyond our solar system has reached a fever pitch. Scientists are beginning to envision what these worlds are like, and in the process, redefining what a planet might need to spawn life.
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Mon, Feb 21, 2011
26 min
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Cosmic Journeys
37 episodes
Episode
S1 · E16
in Cosmic Journeys
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S1 · E17
The Riddle of AntiMatter
Fri, Aug 19, 2011