The Mystery Of Mount Shasta: Mount Shasta in California is known as a hotbed of strange events, from Bigfoot sightings and UFO encounters to hikers vanishing without a trace.
The Human Experiment: Scientists now know that seven human-like species lived alongside Homo sapiens for thousands of years. But why is it that only humans survived?
The Harmonic Code: Archaeologists have discovered that many ancient sites were built with an acoustic purpose, and resonate at a frequency that has an effect on the human brain.
The Space Travellers: It's humankind's most profound achievement: blasting off into the stars. But is it possible that our voyages into the cosmos are a return to our true origins?
William Shatner Meets Ancient Aliens: William Shatner brings thought-provoking questions to experts, and they explore everything from human origins to archaeological finds.
William Shatner Meets Ancient Aliens: William Shatner brings thought-provoking questions to experts, and they explore everything from human origins to archaeological finds.
The God Particle: Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.
The Tesla Experiment: Inventor Nikola Tesla claimed to have direct communication with beings on other planets. Could this genius scientist have been a human 'receiver'?
Aliens and Superheroes: Experts investigate whether ancient tales of beings with super-human powers could be inspired by extraterrestrials who came to Earth in the past.
The Reptillians: Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.
Aliens and Insects: Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens.
The God Particle: Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.
The Tesla Experiment: Inventor Nikola Tesla claimed to have direct communication with beings on other planets. Could this genius scientist have been a human 'receiver'?
Islands of Fire: Native Hawaiians trace their ancestry to beings from the Pleiades star system called the Akua. Could these islands have once been inhabited by extraterrestrials?
The Giants Of Malta: Enormous megalithic structures of mysterious origins - could the ancient mysteries be connected to local legends of alien visitation and giant hybrid beings?
The Mysteries Of Alaska: The vast Alaskan wilderness is well known for mysterious disappearances, electromagnetic anomalies, stories of strange creatures, and UFO sightings.
Close Encounters Of The Fifth Kind: The Center for the Study of Extra-Terrestrial Intelligence defines this as direct human contact and communication with extraterrestrial life.
The Hotspot Connection: Studies have shown that up to 70% of all UFO sightings happen in so-called 'hotspots' - and not only in modern times, but dating back thousands of years.
Return Of The Egyptian Gods: In the 20th century, a mysterious British woman who claimed to be the reincarnation of an Egyptian priestess shocked Egyptologists.
Journey To Immortality: Ancient cultures around the world often referred to the gods as the "Immortals" - but could they have encountered extraterrestrial beings?
The Power Of The Obelisk: Ancient Astronaut Theorists suggest they powered a technology that allowed communication with the gods that came from the stars.
The MUFON Files: MUFON is the world's leading organisation devoted to the scientific investigation of unidentified aerial phenomena and other unexplained encounters.
The Crop Circle Code: More than 10,000 crop circle formations have been documented in over 50 countries. Are they of otherworldly origin? And if so, what is their purpose?
The Power Of The Obelisk: Ancient Astronaut Theorists suggest they powered a technology that allowed communication with the gods that came from the stars.
Mystery Of The Lost Civilization: The discovery of the ancient megalithic site of Karahan Tepe in southern Turkey turns the world of archaeology on its head.
Return Of The Egyptian Gods: In the 20th century, a mysterious British woman who claimed to be the reincarnation of an Egyptian priestess shocked Egyptologists.
The Crop Circle Code: More than 10,000 crop circle formations have been documented in over 50 countries. Are they of otherworldly origin? And if so, what is their purpose?
The Hotspot Connection: Studies have shown that up to 70% of all UFO sightings happen in so-called 'hotspots' - and not only in modern times, but dating back thousands of years.
Journey To Immortality: Ancient cultures around the world often referred to the gods as the "Immortals" - but could they have encountered extraterrestrial beings?
Return Of The Egyptian Gods: In the 20th century, a mysterious British woman who claimed to be the reincarnation of an Egyptian priestess shocked Egyptologists.
Journey To Immortality: Ancient cultures around the world often referred to the gods as the "Immortals" - but could they have encountered extraterrestrial beings?
On Location: Evidence Of Alien Life: Giorgio Tsoukalos takes a look back at the most incredible evidence ever uncovered that could offer proof that we're not alone in the universe.
Alien Air Force: Since 2017, the Navy has been releasing photos and videos of Unidentified Aerial Phenomena, and theorists suggest the images are nearly identical to past accounts.
Secrets Of The Star Ancestors: In the traditions of native people across North America are stories of the Star Ancestors: powerful beings who descended to Earth in the past.
On Location: Decoding The Alien Glyphs: Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that tell a story of alien visitation.