Alien Life Found? 'Infant Earths' Could Hold Clues To Extraterrestrial Life In Universe

Many astronomers believe the question of whether alien life exists isn't "if," but "where." New research could make it easier to pinpoint exactly which distant planets might be suitable for life beyond Earth. Scientists have discovered that the so-called habitable zone of young planets -- the region near a star in which water can exist as a liquid -- is wider than previously thought, which could make Earth-like planets more obvious, according to a new study from researchers at Cornell University...