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?
| Creator | N/A |
|---|---|
| Actor | N/A |
| Country | United States of America |
| Production | GBH |