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The US military has denied that the 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo that indicate otherwise.

While many believe in reincarnation, experts suggest that extraterrestrials designed the human body to be a vessel for otherworldly beings.

Along with Treblinka and Majdanek, Sobibor was one of the camps used in Operation Reinhard, in which the Nazis murdered almost two million people.

If You Wish For Peace, Prepare For War: Small arms production hit a boom in the early 1800s with the emergence of the modern cartridge; an invention that led to the lethal package. (1 of.

The Zodiac Killer Code reveals the desperate bid to crack the crazed codes sent by America's most mysterious serial killer.

The US military has denied that the 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo that indicate otherwise.

While many believe in reincarnation, experts suggest that extraterrestrials designed the human body to be a vessel for otherworldly beings.

Experts explore the similarities between huge pyramids across the world. Could extraterrestrials have influenced their construction and design.

Ancient astronaut theorists hunt for evidence linking Bigfoot to alien species from the distant past. Could the ape-like giant be an extraterrestrial.

Ancient astronaut experts believe the minds of Einstein and Galileo were superhuman. Could these historical geniuses have had extraterrestrial connections.

In 1980, a man received a code after touching an alleged spaceship. After the sequence was translated, he was told never to speak of the incident again.

Ancient alien theorists ask whether the Greeks and Egyptians understood electricity. Could extraterrestrials have introduced them to such technology.

Chupacabra, Greatest UFO Photo Ever and Mars Sounds: What's the truth behind the Chupacabra sighting? Is this the greatest UFO photo taken? What are those sounds on Mars.

If You Wish For Peace, Prepare For War: Small arms production hit a boom in the early 1800s with the emergence of the modern cartridge; an invention that led to the lethal package. (1 of.

The Zodiac Killer Code reveals the desperate bid to crack the crazed codes sent by America's most mysterious serial killer.

Science shines a light on the dark side of Ancient Egypt, from a 5,000-year-old homicide to drug-fuelled debauchery - and one very shocking revelation.

Ancient Icons In The Modern Age: Explore the truth and lies behind ancient Egypt's best known and loved icons, including the Great Sphinx, Tutankhamun and more.

The US military has denied that the 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo that indicate otherwise.