Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Stacker compiled a ranking of cities with the most UFO sightings in Vermont using data from the National UFO Reporting Center.

Stacker compiled a ranking of cities with the most UFO sightings in Tennessee using data from the National UFO Reporting Center.

This article was originally published Oct. 21, 2021. It has been updated for spelling as well as the addition of this 1990 On The Record interview: LAS VEGAS (KLAS) – The atomic age officially began ...

Stacker compiled a ranking of cities with the most UFO sightings in North Dakota using data from the National UFO Reporting ...

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

In July 2020, an ET craft was summoned on camera and appeared! Forensic video analysts examine the footage from this alien encounter, in this clip from Season 2, Episode 3, "Dog Headed Man and ...

In fact, throughout history there have been numerous reports of supposed alien spacecraft sightings that have turned out to ...

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists ...