Spanning 1960 to 2026, these sci-fi movies simply can't be missed — they've helped define the genre and demonstrate its true range.

What kind of music do they play on Mars?

Spielberg delivers a close encounter with extraterrestrials this year with Disclosure Day, but this ain’t his first rodeo… ...

Aliens, Arrival, Nope, Predator, Lilo & Stitch, E.T. the Extra-Terrestrial, and more make up our list of the best alien ...

Both Hawn and her longtime partner, Kurt Russell, have shared their experiences with aliens and UFOs on late-night talk shows ...

And when people are convinced that they know a secret, world-shaking truth, they are willing to wait a long time for ...

As a fast-firing spaceman, one minute you’re invincible, the next you’re dead – with every battle like watching a firework show through a kaleidoscope ...

Alan Ritchson has become best known for his role in Reacher, though Netflix's sci-fi thriller is proof he can anchor more ...

Stacker compiled a list of the top 100 episodes from the original series of "The Twilight Zone," with rankings based on IMDb ...