Two major urban centers flourished in pre-America during a time period that corresponds with the Middle Ages. Here's what's known about the rise and decline of these ancient metropolises. ...read more
Birds hit windows because they can’t tell if the glass is a solid object. Shiny skyscrapers in particular pose a significant risk to migrating flocks. But there are easy solutions that can prevent these bird-window strikes from happening. ...read more
Secrets behind the ancient Egyptian mummification process, revealed. ...read more
Researchers have developed a novel wireless device called Cryoegg to peek into melting glaciers. Recent tests have revealed that it can transmit data through more than 4,000 feet of ice. ...read more
Many actions that would be considered heinous to humans — cannibalism, eating offspring, torture and rape — have been observed in the animal kingdom. Most (but not all) eyebrow-raising behaviors among animals have an evolutionary underpinning. ...read more
Silica gel keeps your chips crisp — and NASA's Mars rover at the right temperature ...read more
A new book explores the science behind our most versatile sense. ...read more
When the human body is deprived of water, things go downhill quickly. ...read more