Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Musk compared consciousness to a candle in a “vast darkness" during remarks about aliens at the World Economic Forum in Davos.

Kepler-452b, a super-Earth orbiting a sun-like star just 1,400 light-years away, has emerged as a prime candidate for harboring alien life. Despite high hopes and predictions that we could discover ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush. When you purchase through links on our site, we may ...