Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

This article was originally published Oct. 21, 2021. It has been updated for spelling as well as the addition of this 1990 On The Record interview: LAS VEGAS (KLAS) – The atomic age officially began ...

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

Sam Rockwell’s acclaimed sci-fi movie by Duncan Jones, Moon, is now streaming free this July. Here's where to watch it.

Donna Hare's decades-old claim that NASA airbrushed UFOs from photos resurfaces, sparking renewed interest and debate despite ...

A deleted scene finally explains the blockbuster’s most mocked plot hole, making its infamous alien hacking twist far easier ...

A NASA whistleblower claimed that the space agency knowingly covered up proof of alien life captured in everyday photos.

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

A new Mars Rover image captured by NASA's Curiosity mission has reignited debate over whether unusual formations on the Red ...

Once, a man called the authorities about an "enormous light" that was "blazing" above his house—only to call back shortly to explain it was actually the Moon.

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists ...

Directed by Steven SpielbergAn ordinary lineman becomes obsessed with mysterious visions after witnessing a UFO, while a ...