Evidence-based exploration of the world's greatest unsolved mysteries. No sensationalism. Just curiosity, research, and the facts as we know them.
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Since the 1890s, strange signals and unexplained objects in polar orbit have fueled the legend of the Black Knight Satellite. NASA photographed it in 1998. No one has fully explained what it is.
On Christmas Eve 1945, a fire destroyed the Sodder family home in West Virginia. Five children were never found — no bones, no remains, nothing. Their parents spent the rest of their lives convinced the children survived.
In the 12th century, two children with green skin appeared in a Suffolk village, speaking an unknown language and claiming to come from a land without sun. Their story has never been explained.
Discovered in a Roman-era shipwreck, the Antikythera Mechanism is an analog computer of staggering complexity — and no one can explain how ancient Greeks built it. Explore the mystery of this impossible artifact.
Over 10,000 sightings, centuries of Indigenous legends, and one iconic film. Explore the evidence, theories, and science behind the Bigfoot phenomenon.
Discover the Bimini Road, a mysterious half-mile underwater limestone formation near the Bahamas. Explore the theories, science, and Edgar Cayce connection.