Kepler mission discovers 461 new planet candidates
Tuesday, January 8, 2013 - 11:00
in Astronomy & Space
(Phys.org)—NASA's Kepler mission Monday announced the discovery of 461 new planet candidates. Four of the potential new planets are less than twice the size of Earth and orbit in their sun's "habitable zone," the region in the planetary system where liquid water might exist on the surface of a planet.