S41 Ep1: Alien Planets Revealed

Aired: 1/8/2014 | 0:53:07 | Episode
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?

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