Moon formed from Earth collision with planet-sized body: New evidence Jun 09, 2014 by EarthSky in » Science Wire, Space The theory that the moon formed when a planet-sized body named Theia crashed into Earth is supported by new evidence using samp Add Comment http://earthsky.org/space/moon-formed-from-earth-collision-with-planet-sized-body-new-evidence Sent from my Windows Phone Read More