Theorists believe that thousands of years ago, extraterrestrials landed on Earth in the season 20 premiere of History Channel’s hit series “Ancient Aliens” set to air Thursday, January 15 at 9 p.m.

As the long-running HISTORY Channel series “Ancient Aliens” begins its live tour, we get a preview from series favorite Giorgio Tsoukalos, a leading expert on Ancient Astronaut Theory, which contends ...

The popular history docuseries Ancient Aliens returns to the History Channel with its season 22 premiere Thursday, Ja. 15 at ...