Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

So-called "ancient alien theorists" like Erich von Daniken (controversial Swiss author of Chariots of the Gods?), David Childress and the colorful Giorgio Tsoukalos of the popular History Channel T.V.

Add Yahoo as a preferred source to see more of our stories on Google. Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern ...