Big sci-fi movies cost a lot to make, and for as many that go on to become box office smash hits, there are even more that ...

A once-controversial sci-fi sequel from Ridley Scott is climbing streaming charts years later, signaling renewed interest and a shifting legacy.

When you think of great monster movies, your mind usually goes straight to the obvious ones. Old classics like Alien, Jaws, ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for potential alien life elsewhere. Saturn's moon Enceladus (shown here in a 2006 ...