Before Hollywood made the gray alien famous, one alleged encounter helped define what people thought aliens looked like.

The trip had all the makings of a boring car ride—until the couple saw mysterious lights approaching from the sky.

People who believe they've been abducted by aliens have always resided at the farthest fringes of science, and the recent claim by a UFO cult known as the Raelians that they had cloned a human being ...

As scientists try to make sense of 3I/Atlas - the mysterious object hurtling towards Earth - it's unleashed fears of an alien invasion and brought back to the surface numerous supposed alien abduction ...