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

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

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