If ancient alien explorers ever traipsed through Earth's cosmic neighborhood, could it be possible they left behind some interstellar litter on the moon?

A philosophy writer has alleged that the CIA sought access to consumer DNA databases to identify people carrying genetic ...

Three US UFO whistleblowers are urging President Donald Trump to waive nondisclosure agreements they say prevent them from ...

A UFO researcher claims that he has spoken to 700 alien abduction survivors, and what they said helped him find religion.

After ruling out several ideas, these mysterious lights above Norway have investigators stumped, in this scene from Season 3, ...

People were allegedly advised to call the United Nations' "alien communications specialist" if they made contact with ...

Videos attributed to Tehran showing multicoloured lights have prompted UFO speculation online, but their origin, location and connection to military activity remain unconfirmed.

Investigators say most UAP sightings can be explained by aircraft, balloons, drones, weather phenomena, or instrument effects, with no evidence so far pointing to an extraterrestrial origin.

An Afghan woman living in Texas with legal US permanent residency has been deported from the country in the first-ever use of ...

The Pentagon on Friday released a new group of files about unidentified anomalous phenomena, or UAP or UFOs, including a ...

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that ...