For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

This video looks back at Tabby’s Star, the bizarre stellar anomaly that pushed astronomers into one of the strangest public ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

Let’s get one thing out of the way. I’m your resident science writer. Alien comets, tiny universes, and body parts are the ...

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

In 1947, pilot Kenneth Arnold's report of strange objects over Mount Rainier and a fateful media misquote created the 'flying ...

From Star City to Rebecca Ferguson's Silo, here are all the sci-fi shows on Apple TV ranked from worst to best.

Dune: Part Two, 1917, Lincoln, Dunkirk, Avatar, There Will Be Blood, and more make up our list of the best epic movies of the ...