Ancient Aliens 17, The Return

From the Dogon people to the Native Zuni tribe, many ancient cultures believed in outer space visitors. Could alien life have played a hand in human history?

Discover the beliefs held by ancient cultures concerning the reasons behind extraterrestrial visits to Earth, from a desire to understand us to thoughts of conquest.

Could aliens have invented the technology we rely on today? Experts discover whether plans for flying machines from 6,000 BC were brought by extraterrestrials.

Reports of encounters with strange beings and sightings of mysterious objects in the sky have occurred throughout history. Have aliens been with us all along?

If aliens came calling, who would speak on behalf of humans? Discover what protocols exist should extraterrestrials contact Earth.