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.

The Pentagon on Friday released a third batch of vintage classified files related to “flying saucers” and other unidentified anomalous phenomena — better known to most Americans as unidentified flying ...

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 ...

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 ...

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, ...

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 ...

The Pentagon on Friday released another batch of UFO files following an initial drop that included never-before-seen documents related to incidents already public. The second drop includes over 40 ...

The Donald Trump administration has released numerous files about reported UFO sightings as well as bizarre claims and reports about the surface of the Moon ...

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