Investigators circle the globe in search of evidence in their quest to determine whether life on Earth began in outer space and if aliens influenced mankind in ancient times.
Did extraterrestrial beings visit Earth and share information about technology and influence human religions?
And more importantly, if aliens visited the planet before, will they return?
Alien theorists believe that the answer to both questions is a resounding yes.
Ancient Aliens S14E06: Secrets of the Maya
When Spanish Conquistadors obliterated the historical record of the Maya in the 16th century, did they wipe out evidence that ancient people traveled to the Americas from all over the world and in flying craft provided by extraterrestrial visitors?