NASA has discovered the most Earth-like planets yet

NASA's Kepler mission has discovered a trio of distant planets that look remarkably like our own. Belonging to solar systems located 1,200 and 2,700 light years from Earth, the three Earth-sized worlds have been spotted orbiting in the so-called Goldilocks Zone of their parent stars – the "just-right" range at which… » 4/18/13 1:01pm 4/18/13 1:01pm