Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3844, a red dwarf 48.5 light-years ...

Alien: Romulus is the latest entry in 20th Century's 45-year-old sci-fi/horror series. Romulus, set between the first two Alien movies, comes from writer-director Fede Alvarez, who previously wrote ...

Are aliens real? Was Fox Mulder right all along? We examine the prediction markets to gauge if the U.S. government will confirm that aliens exist before January 2029. The prediction market on a U.S.