New planet -- Kepler-21b -- discovered
Wednesday, November 30, 2011 - 15:30
in Astronomy & Space
(PhysOrg.com) -- The NASA Kepler Mission is designed to survey a portion of our region of the Milky Way Galaxy to discover Earth-size planets in or near the habitable zone, the region in a planetary system where liquid water can exist, and determine how many of the billions of stars in our galaxy have such planets. It now has another planet to add to its growing list.