NOVA

Alien Planets Revealed

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: Jan 08, 2014 Genre: DocumentaryDuration: 55m Rating: 0 Country: United States of America Production: GBH