Ancient Aliens

In every corner of the world, archaeologists have found strange, elongated skulls. Did our ancestors modify the shape of their skulls to resemble extraterrestrials? And might it even be possible that some of these skulls are of ot...

Stars: David Childress, Qian Wang, Scott Skinner
Writer(s): Katie Raines, Max Thompson

High above the Giza Plateau stands Egypt\'s most mysterious ancient site: the Lost Pyramid of Abu Rawash.

Stars: Ramy Romany, Andrew Collins, Salima Ikram
Writer(s): Katie Raines, Max Thompson

Pacific Ocean is a vast area known as Oceania that is home to the world\'s most remote and mysterious islands. They are known for massive stone structures, statuary strange figures, and countless legends of otherworldly visitors.

Stars: Robert Clotworthy

From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of extraterrestrial contact in the distant past?

Stars: Robert Clotworthy

Found along the California coast to New York\'s Hudson Valley, and Northern England to Southern Chile, could these mysterious locations provide evidence of an extraterrestrial presence on Earth?

Stars: Robert Clotworthy, Ryan Sprague

From a stone circle in Turkey that challenges the timeline of human history to gigantic stone spheres in Bosnia and Egypt\'s most unusual tombs, could these monuments provide proof of extraterrestrial visitation?

Stars: Robert Clotworthy

Earth's oceans remain deeply mysterious. Ancient legends describe powerful water-dwelling beings, and these areas now see frequent UFO activity. Could otherworldly entities inhabit our planet's deepest ocean trenches?

Stars: Richard Dolan, Giorgio A. Tsoukalos, Eric Burlison
Writer(s): Erik Pinkston, Katie Raines, Max Thompson

Ancient scriptures called the Vedas form the foundation of Hinduism. These manuscripts are thousands of years old and describe a time when Earth was inhabited by gods who traveled the skies in flying machines and possessed extraor...

Stars: Robert Clotworthy

Ancient legends describe a war in heaven that was fought by otherworldly beings with extraordinary weapons. Is it possible that our planet still bears the scars of battles fought by extraterrestrials?

Stars: Hugh Newman, Amir Hussain, Michael J.S. Carter
Writer(s): Ruth O'Neill, Erik Pinkston, Max Thompson

From footage of extraordinary aircraft taken by fighter pilots to mysterious glowing orbs that are reported all over the world, are these remarkable sightings evidence of extraterrestrial visitation?

Stars: Giorgio A. Tsoukalos, Nick Pope, Luis Elizondo
Director(s): Anthony McLemore
Writer(s): Chris Gattanella, Frankie Glass, Evan Goldstein

The rapid development of artificial intelligence has made it a powerful tool for historians and archaeologists. But might it also reveal evidence of an extraterrestrial presence on Earth?

Stars: Travis Taylor, Michio Kaku, Giorgio A. Tsoukalos

From colossal figures that can only be seen from the sky to complex crop circles that mimic sound frequencies, and mathematical messages encoded on opposite sides of the planet, could these sites hold clues about alien visitation?

Stars: Robert Clotworthy

The Amazon rainforest remains largely unexplored, but thanks to new technology, researchers are now finding that this dense jungle was once home to a vast network of cities.

Stars: Robert Clotworthy

Giorgio Tsoukalos revisits the series archives to honor Alien Investigators who dared to ask if we're alone in the universe. Did they find evidence of aliens on Earth?

Stars: Giorgio A. Tsoukalos, Shane Hurd, Ron James
Director(s): Anthony McLemore
Writer(s): Kevin Burns, Kristina Djokic, Clinton Edmondson

The origins of humanity can be traced back to Africa, and some of the oldest religious traditions across the continent describe mysterious beings who descended from the sky in thunderous vehicles.

Stars: Robert Clotworthy