The Mayan civilization dominated Central America for nearly 2000 years, but by the 9th century A.D. had vanished. Could the ancient Mayans have actually conspired with extraterrestrial visitors to plan the future—and even the end of the world?
The Maya created the most sophisticated calendar systems in the ancient world, and according to many scholars their Long Count Calendar will come to an end on December 21, 2012. What does this mean for mankind?
Who are the beings with big heads and giant eyes that seem to have been visiting our planet for millennia? Known by researchers as the "greys," these mysterious beings have been depicted in rock art and carved stone figures all over the world.
There are numerous historical, religious and mythic accounts of civilizations being wiped out by volcanoes, earthquakes, floods and meteors. Is it possible that celestial beings had a hand in the ancient world's catastrophic disasters?
Is NASA sharing all that it knows about the universe? Scientists, former astronauts and secret government files all point to the conclusion that there may have been contact with extraterrestrial life in the past.
At nearly 14,000 years old, the ruins of Puma Punku in Peru are among the oldest and most baffling on Earth. Forensic evidence and local legends suggest that this site may have been designed and even inhabited by a species of extraterrestrials.
People on every continent have claimed to see the footprints of Bigfoot. And ancient myths and legends speak of an ape-like giant stalking the earth. What if there is evidence to connect Bigfoot with a distant alien species?
Might an examination of Leonardo Da Vinci's masterful paintings, highly technical hand-drawn sketches and private journals reveal knowledge of otherworldly technology and extraterrestrial beings?
Is it possible that sightings of alien beings or UFOs may actually be evidence of time travel? And might ancient astronauts actually be time travelers from our future?