NASA Discovers Earth 2.0

A newly discovered planet—called Kepler-452b—is so similar to Earth that NASA has dubbed it Earth 2.0. The far-off planet rests roughly 1,400 light years away in the constellation Cygnus and orbits inside its star’s habitable zone, where it’s warm enough for liquid surface water. Kepler-452b’s similarities to Earth are uncanny; it revolves around its sun once every 385 days, is roughly the same size and temperature as our own planet and is only 20% brighter. NASA isn’t yet sure what the planet is made out of but, so far, signs of extra-terrestrial life are promising.