These fictional sea creatures communicate through radio waves, form massive coral-like "hive" networks, and grow up to 200 feet long. Grounded in real biology, built for a fictional world.

As the peerless "Aliens" turns 40, here are 26 reasons it's still the greatest sci-fi action movie of all time.

Controller-clutching players of a certain age may lament the mediocre (at best) video game movies of the '80s and '90s, but ...

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.

From world premieres and found-footage freakouts to post-apocalyptic nightmares and inventive indie sci-fi, this year's ...