Ancient Aliens – The Space Travelers: It is humankind's most profound achievement: blasting off into the stars. But is it possible that our voyages into the cosmos are really a return to our true origins? And if so, as we venture out further into outer space, will we encounter space travelers from other worlds?     Ancient Aliens is an American television series that premiered on April 20, 2010, on the History channel. Produced by Prometheus Entertainment in a documentary style, the…