The toxic legacy of wartime dumping could take centuries to clean up.

Encephalitis lethargica killed five hundred thousand people, and scientists still can’t agree on what it was.

A staggering amount of brain activity takes place in this arena, where “countless signals come together to form a unified experience of reality.”

As it turns out, beneficial mutations are far more common than a 50-year-old theory predicted, but the world changes too fast for them to stick.

The glass harmonica’s bad reputation was entirely undeserved, though.

• The orb is a remnant of a secreted cuticle that allows a sea anemone to attach itself to a rock.

A combination of vicious weather and human error ended up tragically sealing her fate.

It took 139 years to understand what caused the mysterious “Angel’s Glow” at the Battle of Shiloh.

Can we fix it back?

It might have been used in some kind of ritual.

The Royal Monastery of St. Mary of Pedralbes in Spain contains surprising evidence of violence.

Stimulating the system may even prevent Alzheimer’s and dementia.

The 1917 disaster was, at that point, the biggest explosion in history.

Boston’s Great Molasses Flood of 1919 sounds like fiction, but it was all too real.

For decades, a single whale has been calling out at a frequency no known species uses. Scientists still can’t find it.

Harnessing this ability could even make your life feel longer.

The cannon-like sound could be heard for hundreds of miles, but its cause long remained a mystery.

An electromechanical marvel called the Bombe decrypted thousands of WWII messages.

Foucault’s pendulum experiment led to an increase in the public’s interest in both real-life science and science fiction.

More than 100 shipwrecks from a forgotten wartime gamble lie half-submerged in a quiet Maryland bay—and almost no one knows why they're there.