Three stories that suggest aliens are among us: a Mexican rancher slays a terrifying and mysterious creature that's genetically unlike any species on Earth, and is later burned to death in his car.
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Explore a shipwreck found in the middle of the desert, learn about the German aerial terror of WW1 and traverse through a ghost town still stalked by a serial killer.
Three extraordinary stories about the supersensory power of animals: in Germany, a seemingly psychic octopus correctly predicts multiple winners in the 2010 soccer World Cup.
Three stories that suggest aliens are among us: a Mexican rancher slays a terrifying and mysterious creature that's genetically unlike any species on Earth, and is later burned to death in his car.
Over the past 50 years a fascinating pattern has emerged, linking UFOs with military personnel and installations. One of the most significant of these events took place on British soil in 1980. This programme contains some flashing images.
The golden Mask of Agamemnon is one of the most iconic and controversial discoveries of ancient Greece. Agamemnon is one of the greatest figures in Greek literature – the king who lays siege to the city of Troy.
In a museum in Minnesota is one of the strangest machines every built. It looks like something out of a steampunk hair salon. A metal dome hangs from a wooden arm allowing it to be lowered onto the subject's head.
Previously sealed documents hint at compelling new theories about extraterrestrials. Could aliens be living among us? And could former US Presidents know something we don't?
Experts investigate why so many UFO sightings take place in Los Angeles, determining that the answer may lie underwater.
A look at the future of mind control, a extinct hobbit race and whether humans can regenerate our limbs.
Check out a heart patient's unbelievable transformation, circles of ice in rivers and a shocking DNA test.
Ron Johnson, 16, is feeding the family sheep when he suddenly sees a mushroom-shaped object appearing in the field emitting a blinding light. Could it be a UFO?
It's 11am at the Westall School in Melbourne, Australia when a classroom of students playing outside see a saucer-shaped object in an adjacent field. But could it be aliens?
As Captain Terauchi and his Japanese airline crew travel across Alaska, they encounter blindingly bright lights flying in their airspace. Could extra-terrestrials be to blame?
On a country road, Betty Cash, Vickie Landrum and her grandson Colby encounter a large, unexplained diamond-shaped craft shooting fire out of its base.
In 1952, radar picked up a series of UFOs flying over Washington DC. The story hits the newspapers, overshadowing the presidential campaign, so President Truman fights the UFOs with his most powerful weapons: disinformation and bureaucracy.
Is the satellite in Earth's orbit that astronauts discovered in 1998 the same one that Nikola Tesla detected back in 1899?
From military radar to Navy aircraft, sightings of Unidentified Aerial Phenomena have become more frequent - leading to unprecedented acceptance of alien contact.
With science closer than ever to proving that life once lived on Mars, is there a chance that something still exists there?
While many UFO sightings occur in rural locations with only a single eyewitness, there have been sightings over cities witnessed by hundreds.
Between 1981 and 2011, cameras on NASA space shuttles have picked up many images of UFOs that experts still struggle to explain.
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