Ancient Aliens is counting down the world's top ten alien cover-ups, from the famous Roswell Incident to a secret military base rumored to be housing ET technology to recently released UFO videos ...

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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 ...

“Ancient Aliens” investigates the highly contested theory that extraterrestrials may even predate humans on Earth, arriving long before any UFO encounters of the modern era. Per History, “From the age ...

"Ancient Aliens" is the show that just won't quit but then, with 75 million years to investigate for signs of alien visitation to Earth, why would it. Presented (and exec produced) by the ...