UNEXPLAINED PHENOMENA

Unexplained phenomena are all around us. Here you can learn about topics that include spontaneous human combustion, crop circles and the Bermuda Triangle.
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How Stonehenge Worked

The mysteries of Stonehenge have captivated us for centuries: Who built it and why? How did they move those giant stones? Though archaeologists and other researchers have replaced old theories with new ideas, many questions remain.

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  • 10 Famous Paranormal Hoaxes

    10 Famous Paranormal Hoaxes

    Crop circles. Alien autopsies. Time travelers. These are just some of the paranormal phenomena that people have believed in but were later found to be hoaxes. Often, even when someone admitted to making it up, that didn't stop the true believers. See more »

  • 10 Unidentified Sounds That Scientists Are Seriously Looking Into

    10 Unidentified Sounds That Scientists Are Seriously Looking Into

    "Stop, what's that sound?" Doesn't it creep you out when you don't know? There are lots of sounds out there that baffle even scientists. See more »

  • 10 Unsolved Mysteries That Have Been Solved

    10 Unsolved Mysteries That Have Been Solved

    Was Anna Anderson really Anastasia Romanov? Does the Bermuda Triangle really exist? Wonder no more: We have the answers to these and other formerly unsolved mysteries. See more »

  • How Crop Circles Work

    How Crop Circles Work

    Are crop circles the work of alien visitors? Are they a natural phenomenon? Are they elaborate hoaxes perpetrated by some very dedicated humans? Learn how researchers try to separate the supernatural from the scientific. See more »

  • How Crystal Skulls Work

    How Crystal Skulls Work

    To some people, a crystal skull is simply a crystal in the shape of a human skull. But to those who believe in the supernatural, it can represent doom or hope. See more »

  • How Ouija Boards Work

    How Ouija Boards Work

    A key ingredient of horror films, junior-high slumber parties and occult practices, the Ouija board has been fascinating and scaring people for more than a century. But does it really contact the spirit world, or is there a more logical explanation? See more »

  • How Pet Psychics Work

    How Pet Psychics Work

    According to most pet psychics, you communicate with your pets telepathically all the time, without even knowing it. Learn about the controversies associated with animal communication. See more »

  • How Spontaneous Human Combustion Works

    How Spontaneous Human Combustion Works

    How could a man catch fire -- with no apparent source of a spark or flame -- and then burn so completely without igniting anything around him? Can a person really go up in flames for seemingly no reason at all? See more »

  • How Stonehenge Worked

    How Stonehenge Worked

    The mysteries of Stonehenge have captivated us for centuries: Who built it and why? How did they move those giant stones? Though archaeologists and other researchers have replaced old theories with new ideas, many questions remain. See more »

  • How the 'Wow!' Signal Works

    How the 'Wow!' Signal Works

    In 1977, SETI volunteer Jerry Ehman found a transmission printout so exciting he circled the paper with the word "Wow!" It seemed to indicate a message from outer space. But was it really? See more »

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