The search continues with new episodes of In Search Of Fridays at 10/9c! Are aliens using crop circles as a portal to travel through time? Ancient astronaut theorists say yes in this clip from Season 10, "Circles From the Sky". #AncientAliens Subscribe for more from Ancient Aliens and other ...

Stay up to date on all of HISTORY's latest premieres at http://history.com/schedule An ancient Babylonian story about three wise who were sent through a firey furnace leads ancient astronaut theorists to suggest there is a star gate in Iraq in this clip from Season 10, "The Forbidden Zones." ...

Stay up to date on all of HISTORY's latest premieres at http://history.com/schedule Hidden beneath da Vinci's unfinished painting "Adoration of the Magi," investigators found a sketch of an Egyptian temple being built. Learn the meaning of this secret and more in this video from Season 13, "Da ...

Watch new episodes of Ancient Aliens returning Friday Jan 24, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Has the U.S. Military been digging a network of tunnels under Area 51 to conduct secret experiments? Ancient astronaut ...

Watch new episodes of Ancient Aliens returning Friday Jan 24, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Ancient astronaut theorists insists there are more government sites engaged in extraterrestrial research than ever, in this ...

Watch new episodes of Ancient Aliens returning Saturday Jan 25, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Ancient Astronaut Theorists suggest that Moses may have used extraterrestrial technology to guide the Israelites through the ...

Watch new episodes of Ancient Aliens returning Saturday Jan 25, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Ancient Astronaut Theorists explore how England's Stonehenge functioned as an ancient observatory of the stars - and how ...

Watch new episodes of Ancient Aliens returning Saturday Jan 25, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Carvings on the Menhir stones of Sardinia remind ancient astronaut theorist Giorgio Tsoukalos and treasure hunter Marty ...

Watch new episodes of Ancient Aliens returning Saturday Jan 25, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Marty Lagina is still open to the idea that ancient astronauts visited earth some time ago, but Giorgio has no doubts at ...

In 1974, a Florida man found a myserious metal sphere that moved on its own and would produce strange noises. Learn more about this strange object and theories surrounding it in this digital exclusive from Season 12. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY ...

Watch new episodes of Ancient Aliens Saturdays at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Ancient Astronaut Theorists suggest that the octopus may have originated in outer space and been brought to Earth by an asteroid, in this ...

Watch new episodes of Ancient Aliens Saturdays at 10/9c, and stay up to date on all of your favorite History Channel shows at https://history.com/schedule. Ancient astronaut theorists suggest a new branch of the US military may be related to an extraterrestrial agenda, in this clip from Season ...