The Etosha Pan in northern Namibia, the largest salt flat in the country, looks otherworldly in this satellite photo.

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

An alien invasion makes a one-night stand even messier in Extraterrestrial, Nacho Vigalondo’s clever sci-fi comedy about jealousy, lies, and human connection.

A space pod crash-landed in the family’s backyard and abandoned baby aliens from Goo Goo Galaxy were found inside. Trinity ...

Sci-fi has plenty of classics, but few can match Alien. Hollywood tried to recreate its success, and most movies fell short.

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

This map says I’m supposed to walk over the river.”The male customer pointed at the information board and said.“……There is a ...

A mysterious object was seen on SpaceX's livestream of its Starship rocket on Monday. Many viewers suggested it was a UFO, with some saying it was the size of a mothership.

If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some interstellar litter in their wake. Think of it like the loose hubcaps on ...

James Webb Space Telescope image of 14 Herculis c, a planet orbiting a star 60 lightyears away that's one of the strangest ...

The mathematical certainty that 'they' definitely exist in the universeWhen looking up at the night sky, everyone has surely ...

Enceladus' ocean spray freezes slowly and shatters into grains that each carry mostly one salt, which could make signs of ...