AdvertisementKepler Telescope Introduces Earth To A Very Distant CousinJuly 23, 2015Geoff BrumfielLucy PerkinsScott NeumanfacebookEmailArtist's concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger in diameter. (NASA/JPL-Caltech/T. Pyle)
