Newly released UFO files reveal 1948 theories about non-human life, silver discs and bizarre Cold War encounters.

The second wave of UFO files has revealed a chilling series of mysterious sightings near America's main nuclear weapons ...

The Pentagon released the second tranche of declassified UFO files after US President Donald Trump ordered Defense Secretary ...

NASA's Apollo 17 crew reported seeing three mysterious dots and sparks that resembled fireworks, according to new files released by the Pentagon.

Donald Trump announced his administration would begin identifying and releasing UFO-related information earlier this year.

Luna's cryptic posts follow months of heightened interest in the topic of UFOs, and what might be revealed.

This memo is out of this world. Mysterious sightings of ‘three to four-foot tall’ beings decked out in space suits and ...

The question of whether these unidentified objects are really alife life has become increasingly mainstream ...

Astronomers have identified a clue hidden in the light of certain stars that's already led them to discover seven new alien planets, with more expected to come. To be clear, these alien planets likely ...