Ancient Aliens — Episode 22: Secrets of the Exoplanets

You are watching the episode Secrets of the Exoplanets 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.