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It’s a golden age for planet hunters: NASA's Kepler mission has identified more than 3,500 potential planets orbiting stars beyond our Sun. Some of them, like a planet called Kepler-22b, might even be able to harbor life. How did we come upon this distant planet?
NOVA
Season 41
10
January 8, 2014
55 minutes
Lance Lewman
Narrator (voice)
Nathan Williams
Director