Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

Giorgio A. Tsoukalos talks about the Alien Astronaut Theory & the new episodes of "Ancient Aliens" on The History Channel.

The intriguing celestial object known as 3I/ATLAS has sparked debate over whether it is a natural comet or alien technology. Recent reports have consistently debunked the alien hypothesis, reaffirming ...

Everyone loves a good alien invasion story, preferably one with city-sized ships and physics-defying tech. There's just one big problem with that. The Milky Way is estimated to contain 100 to 400 ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...