On September 23, 1999, NASA’s Mars Climate Orbiter vanished without a trace. The spacecraft, designed to study the Martian atmosphere and relay communications for a lander mission, had completed a 9.5-month journey across 669 million kilometers.

Long before bacteria were linked to tooth decay, civilizations across the globe blamed a sinister culprit: the tooth worm.

On October 27, 1939, 29-year-old Earnest Pletch chartered a training flight over Missouri. Midway through the session, while flying at 5,000 feet, he pulled a revolver and shot his instructor, Carl Bivens, twice in the head.

In the warm waters off the coasts of the Americas lurks a creature that doesn’t just feed on its host—it replaces part of it.

In August 1834, Julia Pastrana was born in Mexico’s Sinaloa region with hypertrichosis terminalis and gingival hyperplasia—conditions that caused her body to be covered in thick black hair and her facial features to become enlarged.

In the Spanish city of Teruel, a pair of marble tombs attract steady streams of visitors. Carved hands reach toward one another, almost touching, but not quite.

In a remote laboratory at Los Alamos, scientists raced to build a new kind of weapon during World War II. Behind locked doors, two bomb designs were taking shape—one would destroy Hiroshima, the other Nagasaki.

On May 8, 1950, peat cutters Viggo and Emil Højgaard stumbled upon what appeared to be a recent murder victim in a Danish bog near Silkeborg. The man’s body was so perfectly preserved that police were called. But this was no modern crime scene.

Between 2004 and 2006, an elephant in India’s Assam state left a trail of death and destruction so extensive that villagers began calling it Osama bin Laden.

In 1951, 14-year-old James Christopher Harrison of Junee, New South Wales, underwent major chest surgery. He survived thanks to a large volume of donated blood.