Barack Obama dismissed alien cover-up conspiracy theories, telling Stephen Colbert the government is terrible at keeping ...

The Alien franchise has made some divisive choices in the 40 years since the release of Aliens in 1986, but this far-reaching fan theory has a fantastic explanation for these controversial events.

Claim of nefarious plot draws attention of lawmakers and president – but are disappearances and deaths really linked?

Donald Trump's directive to release classified files on extraterrestrial life has sparked excitement and conspiracy theories, including the resurgence of the 'Project Blue Beam' theory.

If we ever make contact with aliens, our best bet might be to say as little as possible. A recent study, which uses game theory to simulate the outcomes of different strategies for communicating with ...

The discovery of a mysterious interstellar object called "3I/ATLAS" and its transit through our solar system has set off all kinds of speculation about whether the fairly massive visitor could be some ...

Everyone loves a good alien invasion story, preferably one with city-sized ships and physics-defying tech. There's just one big problem with that. The Milky Way is estimated to contain 100 to 400 ...