43min - From an Egyptian bird carving to tales of flying carpets, analysts speculate that ancient cultures may have been inspired by alien spacecraft.
43min - Observers wonder about the possibility of otherworldly visitors helping the builders of the past to construct awe-inspiring monolithic structures.
43min - Devices that seem to be eons ahead of their time, including the Antikythera mechanism and Archimedes' heat ray, inspire theories of alien influence.
43min - Researchers speculate that godlike figures from the myths and folklore of bygone cultures could have origins in powerful extraterrestrial visitors.
43min - Ancient texts from around the world report human beings interacting with reptilian entities. Could such "lizard people" have been more than fantasy?
43min - Genius inventor Nikola Tesla displayed extraordinary intellectual abilities, which some claim he derived from contact with extraterrestrials.
43min - In 2012, researchers discovered a particle that changed science's view of the universe. Did aliens point the way to this breakthrough long ago?
43min - Investigators conjecture that stories of timely divine intervention at critical junctures in human history may have an unearthly explanation.
43min - The similarities between the gods of the past and modern-day superheroes may be rooted in common storytelling traditions — or in alien encounters.
41min - Experts question whether the truth of our alien past could be buried in areas that, due to warfare or instability, are off-limits to exploration.
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