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

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand ...

A new study reveals Jupiter's moon Europa likely lacks active geology on its seafloor, reducing chances of life in its vast subsurface ocean. Researchers calculate weak tidal forces from Jupiter leave ...