S41 E1: Alien Planets Revealed

Aired: 1/7/2014 | 0:53:07 | Expires: 1/7/2024 | 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?