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Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
First Air Date : Apr 20, 2010
Last Air date : Jul 02, 2026
Episode : 290 Episode
Season : 22 Season
Runtime: 42:60 minutes
Studio: History
Country: United States of America
