Artist conception of Kepler-186f, which  orbits a red dwarf star about 500 light years from Earth in the constellation Cygnus.  (Image credit: NASA Ames/SETI Institute/JPL-Caltech)

Astronomers Spot Most Earth-Like Planet Yet

Kepler-186f is a rocky planet that orbits a red dwarf star 500 light years away and exists in the Goldilocks zone, where conditions for life may be just right.