Cosmic Journeys
Season 1 • Episode 16: Alien Planets & Eyeball Earths: The Search for Habitable Planets • Watch with subtitles
Episode 16: Alien Planets & Eyeball Earths: The Search for Habitable Planets
February 21, 2011 • 24 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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