Milky Way may host billions of Earth-size planets
Tuesday, November 5, 2013 - 00:30
in Astronomy & Space
A clever analysis of Kepler space telescope data suggests 'a great leap' toward the possibility of life elsewhere in the universe.There's no place like home, but scientists now say that Earth-size planets orbiting sun-like stars in a so-called habitable zone are so common that there could be as many as 11 billion in the Milky Way alone.