TV Ancient Aliens - Season 17 Episode 6 : Top Ten Alien Encounters Ancient Aliens - Season 17 Episode 6 : Top Ten Alien Encounters 7/10 by 287 users We're counting down the world's top ten alien encounters, from the first reported abduction event to mass UFO sightings over New York's Hudson Valley to an incident in ancient Rome that changed the course of human history. Could these incredible accounts be actual encounters with visitors from the stars? Details Casts Posters Images Title Ancient Aliens - Season 17 Episode 6 : Top Ten Alien Encounters Alternative Titles Nos ancêtres les extraterrestres, 远古外星人, Ancient Aliens - Neue Erkenntnisse, Generacion alien, Alienígenas ancestrales, Alien Theory, 古代の宇宙人, Goście z Przeszłości, Drevni vanzemaljci First Air Date 2010-04-20 Last Air Date 2025-11-06 Number of Episodes 278 Number of Seasons 21 Genres Documentary, Mystery, Sci-Fi & Fantasy, Networks History, Casts Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken, Linda Moulton Howe, David Wilcock, George Noory, Philip Coppens, Nick Pope Plot Keywords , Narrator (voice) Robert Clotworthy Self Giorgio A. Tsoukalos Self Ariel Bar Tzadok Self Jonathan Young Self David Childress Self Erich von Däniken Self Linda Moulton Howe Self David Wilcock Self George Noory Self Philip Coppens Self Nick Pope Self Mike Bara Self Bill Birnes Self Hugh Newman Self Robert M. Schoch Self Nick Redfern Episodes List Ancient Aliens Season 17 :Episode 1 The Lost City of Peru The Lost City of Peru 2021-08-06 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... Ancient Aliens Season 17 :Episode 2 Top Ten Mysterious Sites Top Ten Mysterious Sites 2021-08-13 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... Ancient Aliens Season 17 :Episode 3 Top Ten Alien Cover-Ups Top Ten Alien Cover-Ups 2021-08-20 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... Ancient Aliens Season 17 :Episode 4 The Mystery of Mount Shasta The Mystery of Mount Shasta 2021-09-17 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... Ancient Aliens Season 17 :Episode 5 The Human Experiment The Human Experiment 2021-09-24 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... Ancient Aliens Season 17 :Episode 6 Top Ten Alien Encounters Top Ten Alien Encounters 2021-10-01 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... Ancient Aliens Season 17 :Episode 7 Top Ten Alien Artifacts Top Ten Alien Artifacts 2021-10-08 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...