Our Milky Way galaxy is crowded with far more habitable Earth-like planets than previously thought - at least 11 billion of them in orbit around distant stars, a team of planet hunters led by UC Berkeley astronomers said Monday.
Erik Petigura, a Berkeley graduate student, analyzed data from the Kepler spacecraft and calculated that at least 50 billion stars much like Earth's sun are blazing throughout the galaxy.
It's possible that even more Earth-like planets exist than Petigura estimates, for his analysis takes into account only one class of hot stars that are known to be very much like our sun. There are other stars called red dwarfs that are about the size of our sun only cooler, and many so-called "exoplanets" may be circling them too, he said.
Via Sepp Hasslberger