Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

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

The grainy photos show a tailless shape with canards slipping through the Nevada night, and the internet reached for aliens.

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

IN a shock midnight move, the US government has swallowed 23,000 acres of public land to extend the wall of silence around ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

In 1947, pilot Kenneth Arnold's report of strange objects over Mount Rainier and a fateful media misquote created the 'flying ...