Abandoned in the Arctic ice in 1931, the crewless SS Baychimo went on sailing by herself for nearly four decades — sighted, boarded, and lost again, until she vanished for good.

On a December afternoon in 1945, five US Navy bombers took off from Florida on a routine training run. Six aircraft and 27 men never came back.

In 1937 the world's most famous aviator disappeared near a tiny Pacific island. Nearly nine decades later, sonar hunters and a new expedition are still chasing her — so far without proof.

For 35 years, 97 letters on a copper sculpture at CIA headquarters have defeated the world's best codebreakers. In 2025, the answer was sold — to a buyer sworn to silence.

In Taos, Bristol, Windsor and dozens of other places, a low, relentless drone torments a small minority of residents — and decades of scientific investigation have never found a single source.

Witnesses have described glowing spheres drifting through thunderstorms for centuries — and in 2012, science finally caught one on camera, by accident.

Since 2007, more than twenty human feet in sneakers have washed ashore on one stretch of Pacific coastline. Science has explained how — but not every who, and not entirely why here.

Half of Minnesota's Brule River plunges into a hole in the rock and vanishes. For decades, everything thrown in disappeared without a trace — until two hydrologists tried the simplest test of all.

A fourteen-foot linen bears the ghostly image of a crucified man. Radiocarbon dating says the Middle Ages; a newer X-ray method says two thousand years. The science is still fighting.

It began with three schoolgirls giggling in class. Within months, an unstoppable wave of laughing, crying and fainting had shut down schools across an entire region — and doctors could find nothing wrong.