Donald Trump's declassified UFO files and the documentary Sleeping Dog reignite the debate on extraterrestrial life, yet officials maintain no evidence confirms alien existence.

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

Historic file release: President Trump ordered the declassification of decades of UFO and UAP records, with the first batch now publicly accessible online. Striking new evidence: Files include a ...

The Trump administration on Friday released much-anticipated UFO files with images showing evidence of what could be extraterrestrial life. THIS BLOG IS NOW CLOSED Article continues below ...

Newly-released material from the so-called UFO files includes reports of unexplained green orbs, discs and fireballs zooming across the sky, with investigators yet to find an explanation for the sight ...

Add Yahoo as a preferred source to see more of our stories on Google. The Trump administration released its newest batch of UFO documents last week, revealing over 160 files that include videos, ...

Add Yahoo as a preferred source to see more of our stories on Google. A renewed push in Washington is bringing one of the world’s most controversial UFO cases back into the spotlight—this time with ...

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 ...

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