Hundreds of Washington’s elite fell violently ill at the same hotel in 1857, including President-Elect James Buchanan.

The forger confused his gothic letters, used post-war glue, and aged the covers with tea. The real mystery is why anyone believed him at all.

Life-forms made of stuff we couldn’t imagine may still be as conscious as we are.

The world’s once-tallest building absorbed the deadly accident 14 years after construction.

Some mind-altering substances can leave lasting marks on entire cultures that ripple far beyond a single trip.

The buried structure may be an entrance to something deeper beneath the desert floor.

While its mouth is closed, this artifact speaks volumes about the medieval past.

The ring, made in part from deep-blue stone, was likely owned by a high-status woman during the Middle Ages.

Atomic clocks leveraged the atom to keep time, but new innovations will use the nucleus itself. 

Discovered in 1908, the disc is covered in undecipherable symbols that have perplexed experts and led to numerous theories about its origins.

Elmo W. Heter had a problem: beavers were dying during overland relocations. His solution? Custom crates, surplus parachutes, and a very patient test beaver.

The key to regeneration has been inside you all along, new research suggests.

What seems like bending the laws of physics is actually just using them to our advantage. 

He’s over 75 years old but said he “feels like a teenager.” Could his methods actually lead to extreme life extension?

They cooperate, make decisions, and even display a “primitive form of altruism,” scientists say.

In 1997, NOAA researchers recorded a mysterious ultra-low-frequency noise so powerful it registered on sensors thousands of miles apart.

People report anything from seeing colors to having near-death experiences. 

A mummified fossil fish was forgotten in a university basement until a son's chance discovery brought it back to science.

The eerie “sailing stones” in Death Valley National Park simply refuse to stay in one place.

A routine nature reserve project in the Netherlands turned up over 3,000 artifacts spanning thousands of years.