Researchers think it will provide new information on ancient customs.

The country has planted a bunch of new trees since 1981, but that extra foliage is shifting more precipitation to some areas while drying out others.

Now, researchers finally solved a decades-long mystery about our vision.

Our minds evolved to survive. But their inner workings have astonishing—and sometimes disturbing—consequences for everyday life.

Up to 3 million people once lived here. The jungle hid their monuments for 2,000 years.

These otherworldly orbs of light in the Chihuahuan Desert have perplexed locals for more than a century, but modern science has a more mundane explanation. 

A social experiment found that people acted more chivalrous when someone dressed as the Caped Crusader was nearby. 

The objects suggest that humans entered South America thousands of years earlier than previously thought.

We are what we are because of ancient and mysterious genetics.

The discovery could change how we think about one of humanity's oldest relationships.

Genes are known to move within an organism, but between organisms—that’s another story.

While digging deeper for more space, this family uncovered relics from a civil war.

Scientists are on the verge of a dental miracle.

Locked inside glassy fallout particles, the strange alloy could only form in a nuclear blast.

One person’s trash is another mollusk’s treasure. 

This breakthrough transforms the building of synthetic DNA from a chemical process to an electrical one. 

A ruptured gas line wasn't enough to explain the 1988 disaster. The metal drums told the real story.

The dead are almost all young men, buried in haste, with no bullet wounds to explain them.

‘Perimeter’ could set loose Russia’s entire nuclear arsenal—even with every leader in Moscow dead.

Tied to nature, this magnetic sense may even help form consciousness itself.