Add Yahoo as a preferred source to see more of our stories on Google. Erich von Däniken, who died last week, anticipated the fixation with aliens and conspiracy theories of many podcasts and ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the ...

If visitors to our planet in millions of years found fossils of a Homo sapiens and another great ape in an elaborate tomb, would they be able to prove which one built it? (cont.) New Scientist often ...