A former CIA-linked physicist's comments about 'four alien species' have reignited UFO conspiracy theories online.

Experts say the videos released by the US government give no evidence of alien technology or extraterrestrial life.

'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 ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

The US Government has released a new trove of documents on cases of "unidentified anomalous phenomena" (UAPs)—many of which would have been described in the past as unidentified flying objects or UFOs ...

New batch of previously classified government documents takes no position on origin of unidentified aerial phenomena (UAPs) ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The Trump administration has released more than 160 files relating to ...

The blockbuster release of Pentagon UFO files under President Donald Trump's push for transparency has triggered widespread panic that ETs are already among us and possess technology far superior to ...