Time and again, humans' interest in the unknown has given rise to theories -- while some became religion, others were termed ...

In the long and hallowed history of flight, engineers are writing a new chapter. It’s a chapter that involves skies more distant than the stratosphere of our own world. Space flight designers today ...

In "After the Flying Saucers Came: A Global History of the UFO Phenomenon," Greg Eghigian explores how individuals, scientists, governments and the media responded to reports of UFO sightings and ...

Curious what happens to Arthur and Tootles in Alien: Earth Episode 6? As FX’s sci-fi thriller reaches one of its tensest chapters yet, the story delivers two devastating twists that leave the fates of ...

Editor's note: The below recap contains spoilers for Alien: Earth Episode 6. Noah Hawley's Alien: Earth has done a terrific job of creating something new for fans to latch onto, while still honoring ...

So-called "ancient alien theorists" like Erich von Daniken (controversial Swiss author of Chariots of the Gods?), David Childress and the colorful Giorgio Tsoukalos of the popular History Channel T.V.

The end of the Second World War ushered in a new age, one dominated by novel technologies, the Cold War, the threat of nuclear destruction—and the first reported UFO sightings. Humans have witnessed ...