If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth. Eerie ...

A strange extinction event followed by reports of a UFO sighting. Is this real evidence of alien abduction or just a mystery of history Dive into this unexplained story and decide for yourself. Could ...

His book Chariots of the Gods?, which theorised that advanced aliens had repeatedly visited Earth, sold millions of copies.