NOVA

Season 41, Episode 10

Episode Title: Alien Planets Revealed

Air Date: 2014-01-08

Overview:

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?