The History Channel

Unearthly visitations... Heavenly messengers... Close encounters... Accounts of humans interacting with celestial beings have existed since the beginning of mankind. Many of these encounters resulted in moral, philosophical and artistic inspirations. But did these contacts involve ethereal beings from heaven or extraterrestrials from other worlds? Are holy books the word of God, or guidebooks passed down by more advanced civilizations? Who told Joan of Arc how to defeat the English Army--saints or extraterrestrials? Could a young boy from India have learned advanced mathematical formulas from a Hindu goddess? What message did an American serviceman receive while touching an alien aircraft? If the Ancient astronaut theory is correct, then are beings from other worlds communicating with us for our benefit... or theirs? Just what is the purpose of these alien contacts?

Super-heated death rays... High-tech rockets... Powerful sonic weapons... Are these examples of modern day science or could these technologies have originated thousands of years ago? Is it possible that early man possessed scientific knowledge far beyond that of our own century? Ancient texts, folklore and art suggest humans witnessed disc-shaped flying machines and fire-spewing chariots. Could these be accounts of flying saucers and rocket ships? And if so, was advanced technology left here by visitors from the stars? Did mankind's quest to unlock the secrets of levitation, anti-gravity and laser technology merely spring from our imaginations or did these ideas come from otherworldly beings?

The Mayan civilization dominated Central America for nearly 2000 years, but by the 9th century A.D., the great Mayan cities were abandoned, and the Mayan people vanished. What could have happened to this advanced culture? Might the Maya have left clues as to how they surpassed other cultures in science, mathematics, time keeping, and most importantly, astronomy? In recent years, hieroglyphs have been decoded to reveal that the Maya were able to accurately predict shifts in the Earth's axis every 26,000 years. Inscriptions on the sarcophagus of their most prominent ruler, King Pakal, tell of a journey to the Milky Way. And a sophisticated calendar foretells of the end of the world in 2012. Most striking is their belief that knowledge was passed to them by otherworldly beings who descended from the sky. Could the ancient Maya have actually conspired with extraterrestrial visitors to plan the future--and even the very end of the world?

What came down in the forest outside the sleepy hamlet of Kecksburg, Pennsylvania on December 9, 1965? Some residents claimed to see an acorn-shaped metal object with strange, hieroglyphic writing on its side, half-buried on the forest floor. Astronomer Von Del Chamberlain wrote that the Kecksburg object was a meteorite. NASA consultant James Oberg theorized that it was a failed Russian probe, but now also thinks it was probably a meteorite. Often called the "Pennsylvania Roswell" in UFO circles, the debate raged until, in late December 2003, NASA finally released 39 pages of material and the Air Force released 2,800 pages on the case from its files. The only thing the government documents conclusively prove is that the object was not a Russian probe. But for UFO enthusiasts and researchers, many questions remain unanswered.

Does a remote island in the middle of the Pacific Ocean hold the final clue to the Mayan's apocalyptic predictions concerning 2012? One explorer thinks he's discovered the answers that have eluded man for centuries. Jim Turner stumbled on this remote artifact over a decade ago and has spent the past ten years preparing an expedition to prove that this is the place they foretold that the gods would come to watch the final minutes of civilization as we know it.

The Bermuda Triangle, a 500,000 square mile area in the Atlantic is the world's greatest unexplained mystery. Ships and planes simply disappear without a trace. The MysteryQuest team takes one of the few survivors of a Triangle encounter on a flight through it to try to determine what could be disorienting pilots. The expedition team dives in the waters of the Bahamas to try to locate the first wreckage of an aircraft lost in a Triangle disappearance.

Might the tools and technology of ancient builders have come from distant galaxies? Evidence suggests that an ancient mountaintop fortress in Peru was constructed with laser-like tools... temples at Vijayanagara India were built to harness cosmic energy... and an acoustic chamber in Malta enabled interplanetary communication. If the ancient builders did use advanced technology, could it prove that aliens visited Earth thousands of years ago?

Super-heated death rays... High-tech rockets... Powerful sonic weapons... Are these examples of modern day science or could these technologies have originated thousands of years ago? Is it possible that early man possessed scientific knowledge far beyond that of our own century? Ancient texts, folklore and art suggest humans witnessed disc-shaped flying machines and fire-spewing chariots. Could these be accounts of flying saucers and rocket ships? And if so, was advanced technology left here by visitors from the stars? Did mankind's quest to unlock the secrets of levitation, anti-gravity and laser technology merely spring from our imaginations or did these ideas come from otherworldly beings?

December 21, 2012: a prophetic date delivered in stone by the ancient Maya. Revered by scientists for their extremely accurate calendars, the Maya are also known for their mysterious ability to predict unsettling events so many are taking the December date seriously. On this date a rare galactic alignment will take place and coincidentally, as the alignment happens, our sun will be entering its most violent solar storm cycle. And, all of this comes at a time when scientists believe Earth s magnetic defense shield, which protects us from dangerous solar radiation, may be compromised. Our planet may become paralyzed. People are heeding the warning and getting prepared, including a group of everyday Americans learning how to fend for themselves and live off the grid.

The U-2513 is what's known as a Type 21 German U-boat. In the 1940s, the Type 21 was a secret weapon that threatened to change the course of two wars: WWII, and then later, the Cold War. During WWII, German hopes were riding on it, and the Allies were terrified of it. After the war, the British, Americans, and Russians couldn't wait to get their hands on it. It was a weapon that had the potential to change the balance of world power and determine the outcome of the Cold War. Join our Deep Sea Detectives, John Chatterton and Richie Kohler, as they dive in over 200 feet of water some 95 miles offshore of Key West. There they investigate the wreck of a one of WWII's most significant naval innovations--a boat design that changed history.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

In 1718, the infamous pirate Blackbeard and his flagship, the Queen Anne's Revenge, wreaked havoc raiding British supply routes to and from their American colonies. Then, the British offered a pardon to all pirates who would give up their dastardly ways. Blackbeard decided to accept, but as he moved toward the coast of North Carolina, his flagship ran aground in what is now known as Beaufort Inlet. Eventually Blackbeard abandoned the Queen Anne's Revenge, leaving her to succumb to the elements...or so the story goes. In 2001, underwater archaeologists found the remains of a ship in the inlet. Join our veteran divers John Chatterton and Richie Kohler as they embark on a journey to solve the mystery of the ship's identity. Could this be the final resting place of Blackbeard's ship? And did the famed master seaman really run aground, or was that all part of another notorious Blackbeard scheme?

A mysterious, stark terrain, 90 miles north of Las Vegas, goes by many names: The Box, Paradise Ranch, Groom Lake, Watertown Strip, and Dreamland. But most refer to the region as Area 51. Since the late 1950s, an array of UFO sightings has been reported above its skies. In 1989, revelations of Las Vegas resident Bob Lazar brought Area 51 to national attention. Lazar claimed to possess amazing inside information, but he wasn't the first to state that something strange was going on. Those who discount Lazar's theories think the government kept its activities from the general public for a more plausible reason. The base, built at the Cold War's height, housed testing of cutting-edge aviation technology. The cloak of secrecy was to keep the Soviet Union in the dark, not the American public, and experts expostulate that the government perpetuated these theories to disguise its real activities.

What came down in the forest outside the sleepy hamlet of Kecksburg, Pennsylvania on December 9, 1965? Some residents claimed to see an acorn-shaped metal object with strange, hieroglyphic writing on its side, half-buried on the forest floor. Astronomer Von Del Chamberlain wrote that the Kecksburg object was a meteorite. NASA consultant James Oberg theorized that it was a failed Russian probe, but now also thinks it was probably a meteorite. Often called the "Pennsylvania Roswell" in UFO circles, the debate raged until, in late December 2003, NASA finally released 39 pages of material and the Air Force released 2,800 pages on the case from its files. The only thing the government documents conclusively prove is that the object was not a Russian probe. But for UFO enthusiasts and researchers, many questions remain unanswered.

Does a remote island in the middle of the Pacific Ocean hold the final clue to the Mayan's apocalyptic predictions concerning 2012? One explorer thinks he's discovered the answers that have eluded man for centuries. Jim Turner stumbled on this remote artifact over a decade ago and has spent the past ten years preparing an expedition to prove that this is the place they foretold that the gods would come to watch the final minutes of civilization as we know it.

The Bermuda Triangle, a 500,000 square mile area in the Atlantic is the world's greatest unexplained mystery. Ships and planes simply disappear without a trace. The MysteryQuest team takes one of the few survivors of a Triangle encounter on a flight through it to try to determine what could be disorienting pilots. The expedition team dives in the waters of the Bahamas to try to locate the first wreckage of an aircraft lost in a Triangle disappearance.

Might the tools and technology of ancient builders have come from distant galaxies? Evidence suggests that an ancient mountaintop fortress in Peru was constructed with laser-like tools... temples at Vijayanagara India were built to harness cosmic energy... and an acoustic chamber in Malta enabled interplanetary communication. If the ancient builders did use advanced technology, could it prove that aliens visited Earth thousands of years ago?