Two Earth-sized planets found orbiting another star
Tuesday, December 20, 2011 - 23:30
in Astronomy & Space
Two rocky planets are discovered orbiting a sun-like star called Kepler-20 in a tightly packed planetary system, scientists say.Scientists have confirmed the existence of two Earth-sized, rocky planets orbiting a star called Kepler-20, 1,000 light-years away in the constellation Lyra.