First Aired: April 20th, 2010
Status: Continuing
Network: History
Summary: 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.
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# of Episodes: 289
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# of Episodes I haven't watched: 289
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Season 15
Episode 1: The Mystery of Nan Madol
Air Date: January 25th, 2020
Summary: Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.
Episode 2: The Relics of Roswell
Air Date: February 1st, 2020
Summary: In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an alien spacecraft and that remnants may have been overlooked.
Episode 5: The Mystery of the Stone Giants
Air Date: February 22nd, 2020
Summary: From Egypt to Easter Island, towering figures built by ancient man stand watch over the Earth. Are these stone giants simply a testament to humanity's past or could they depict visitors from another world' And do they serve a technological purpose that modern man is just now unlocking'
Episode 6: The World Before Time
Air Date: February 29th, 2020
Summary: Shocking new evidence reveals that advanced civilizations might have existed on Earth tens of thousands of years ago. Is it possible that a technologically advanced society thrived on Earth then’ And did they leave behind a record that they lived alongside extraterrestrial beings’
Episode 7: They Came from The Pleiades
Air Date: March 7th, 2020
Summary: In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster, but could new scientific findings reveal that humankind's true origins lie not on Earth but 400 light years away.
Episode 8: The Immortality Machine
Air Date: March 14th, 2020
Summary: In the Mojave Desert, there is a structure built to bestow everlasting life and according to the architect, the blueprint was provided by an extraterrestrial visitor known as the Integratron, could it actually provide the key to immortality.
Episode 10: The Mystery of Skinwalker Ranch
Air Date: March 28th, 2020
Summary: Nestled within a remote valley in Utah, is a ranch that some believe is a hotbed of strange, inexplicable phenomena including terrifying creatures, paranormal apparitions and lights in the sky. Could the bizarre activity have a connection to an alien entity known as the Skinwalker'
Episode 11: The Ultimate Guide to UFOs
Air Date: April 11st, 2020
Summary: UFO witnesses have reported a wide variety of objects in Earth's skies--and not only in modern times, but for centuries. What might we learn from examining their shapes, sizes, and the way they maneuver' Could they offer important clues about other intelligent life in our galaxy'
Episode 12: Aliens and the Presidents
Air Date: April 18th, 2020
Summary: The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington. Is it possible that extraterrestrials have been monitoring–and even influencing–America’s presidents’
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