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.
Central American coffee farmers are facing off against a deadly fungus that has wiped out thousands of acres of crops. Coffee companies like Starbucks are pooling money to support them in the fight.
To withstand their 9,300-mile migration, red knots feast on eggs from horseshoe crabs each spring in Delaware Bay. Scientists worry many crabs are starting to lay eggs before the birds can get there.
People sometimes avoid information because they're afraid of bad news. But this "information aversion" can lead people to avoid medical tests that could save their lives.
For the last 25 years, a giant flock of purple martins has gathered in Lake Murray, S.C. in late July. This year, they didn't show up.
The new Scarlett Johannson movie, Lucy, is based on the idea that most people only use only 10 percent of their brains. As it turns out, that idea is completely untrue — but it's oddly persistent.