A broken molar found in a box of ancient internal organs was the key to finding Egypt's long-lost gender-bending ruler, Egyptian authorities announced.

We all might be swimming with the fishes if it weren't for warm rock in the Earth's top layer, which keeps continents buoyant and above water, scientists say.

Experts are close to piecing together the entire genomes of long-dead beasts. But bringing them back to life may—or may not—happen soon, depending on whom you ask.

Drinking and driving don't usually mix—unless the alcohol is turned into a new organic fuel that's gaining steam in Sweden.

Wolves with strong jaws and massive teeth roamed ancient Alaska eating prey completely—bones and all—according to a new study.

Watch as archaeologists uncover and examine the 500-year-old skeleton of the Inca man they believe was the first shooting victim in the Americas.

"Sprites," vibrant light bursts during storms, are actually tiny light balls speeding through the atmosphere at one-tenth the speed of light, scientists say.

The latest crisis on the International Space Station raises the question: How to evacuate in an emergency?

A space shuttle leaves a ghostly knot above Florida, soccer stars scrimmage on a glacier, and Spaniards leap seven babies in a single bound.

Plants are able to recognize close family members, treating them differently than unrelated neighbors, new research suggests.

The dwarf planet that led to Pluto's demotion—Eris—is also a third bigger than the former ninth planet, a new study reveals.

A large basin on Mars's northern plains really did once hold a giant ocean, suggests new research into the planet's shifting poles.

A type of pest-resistant, genetically modified crop does not seem to kill harmless insects such as butterflies, a major review of studies claims.

The well-preserved mummy known as Oetzi died from an arterial lesion inflicted by an arrow in his back, modern medical technology suggests.

Evidence of an expanding universe will have disappeared from view in a hundred billion years, throwing any future versions of cosmic science back to 19th-century models, according to a new essay.