From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

One of the internet’s strangest conspiracy theories claims humanity may already be secretly serving an advanced alien race known as the “Tall Whites.” According to alleged military insiders and ...

New claims that the United States has recovered remains of four separate species of alien life are sending shockwaves throughout the UFO disclosure movement, further drumming up conversations ...

Long before Artemis II captured our attention by taking humans farther from Earth than ever before, humans have been fascinated by the possibility of exploring other worlds, finding life on other ...

'Interdimensional' mostly refers to entities from parallel dimensions; they don't travel vast distances, but they are believed to manipulate space-time. Stephen Leonardi: Pexels The long-promised ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between. By James S.A. Corey James S.A. Corey is the pen name of Daniel Abraham and Ty Franck, the ...

Even as the Trump administration continues to declassify government files on UFO sightings, the official position of the United States remains that no evidence has emerged proving the existence of ...

A Catholic nun has weighed in on the long-running debate surrounding UFOs and extraterrestrial life. In a video posted on The ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration by Alberto Mier/CNN When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO ...