Alien Planets Revealed Preview
Season 41
Episode 1
About the 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?
Aired:
| Expires: | Runtime: 30s
