Researchers have mapped the travels of 150,000 artists, politicians and religious leaders over the past 2,000 years. The videos reveal how cultural achievements ebb and flow across the U.S and Europe.
Studies show the caffeine in just a few cups of coffee enhances performance in a wide range of sports. But more isn't better, and concentrated caffeine can be lethal.
A group of environmentalists in Vermont aren't at all squeamish about "pee-cycling." A local hay farmer is using their pee as fertilizer as they run tests to find out how safe it is for growing food.
The Christian theme park, featuring a 510-foot-long replica of the ark, is getting $18 million in new incentives from the state's tourism board.
The Institute of Medicine this week urged Congress to allocate to community clinics more of the $15 billion it spends annually on training new doctors. But hospitals say that's the wrong prescription.
It turns out that our nearest neighbor in space is sort of a squashed sphere. The lead author in a new paper published in Nature describes it as "a lemon with an equatorial bulge."
Mummies from Ancient Egypt, Peru and the U.S. all show signs of hardened arteries. But why? Researchers say bad hygiene, open hearths and maybe some deeply ingrained genetic factors were to blame.
Oklahoma is experiencing more earthquakes, and some scientists say they're caused by wastewater disposal wells. Linda Wertheimer learns more from energy reporter Joe Wertz of StateImpact Oklahoma.
One study suggests middle-aged adults with a history of problem-drinking may be twice as likely to develop serious memory issues as the years wear on.
Scientists are trying to raise prized bluefin tuna completely in captivity. An experiment at a Baltimore college is the first successful attempt in North America.
Sardines and other small, oily fish are some of the most nutritious in the sea. Now there's another reason to eat them: Fishermen use a lot less fuel to catch them than many other kinds of seafood.
The Natural Trap Cave in Wyoming may hold specimens of DNA from animals who roamed thousands of years ago. Julie Meachem, a paleontologist leading the expedition into the cave, speaks with Audie Cornish about the secrets she hopes to find.
A small cadre of officers is responsible for keeping America's nukes on alert 24/7. Here's a peek into their world, and what it takes to do the job.
Researchers found that a class of chemicals similar to nicotine used on corn and soy farms have run off into streams and rivers in the Midwest. There they may be harming aquatic life, like insects.
That strong, sturdy handshake your grandpa taught you isn't the cleanest way to greet someone, scientists say. So should doctors and nurses in hospitals start bumping fist?
An extremely rare, albino hermaphroditic redwood tree was in danger of being sent to the chipper because it was growing too close to the path of a new railroad line in Cotati, Calif. But thanks to local outcry from arborists and the community, the tree is getting a second chance at life.
A switch to pass-fail grading is curbing the "perfection" culture among U.S. nuclear missile forces. Critics of the old way say striving to be perfect invited cheating by those who launch the nukes.
The string of genes that make a man a man used to be much bigger, and some geneticists say it may be wasting away. Back off, others say. Y has been stable — and crucial — for millennia.
Birds are everywhere, but the greatest concentration of different birds — the "Bird mecca" of America – is not in our great parks, not in our forests, not where you'd suppose. Not at all.
Food in supermarkets is increasingly connected to child labor and trafficking. Many laws aimed at ending these abuses overlook a key source of the problem: The rapid decline of fish and fauna.