An app allows boat travelers to track declining levels of phytoplankton, a microscopic organism at the base of the marine food chain
A study of fossils of prehistoric birds suggests two sets of wings—one set on the creature's hind legs—helped avians stay aloft
As you celebrate today's holiday, here's a history of notable moments in the irrational number's past
Measuring how coral fluorescence changes may serve as an early indicator of the declining health of a reef
An intriguing study involving puppet shows suggests that infants dislike those who are different from themselves
Neanderthal brains had more capacity devoted to vision and body control, with less left over for social interactions and complex cognition
Your publicly available "likes" can tell others a lot you wouldn't expect—including your political views, sexual orientation and religion
The smog-filled valley recently hosted NASA planes that tested air quality to help calibrate future satellite efforts to measure air pollution
Deep channels, buried under lava but now mapped with satellite data, give hints to the planet's violent, wet and recent past
The drug, naturally present in coffee and citrus plant nectars, is shown to improve honeybees' long-term memory
Research shows that cities can cut emissions by 70 percent; check out the ones striving their hardest to curb their carbon appetites
Israel battles a swarm of millions of locusts that flew from Egypt that is giving rise to a host of ecological, political and agricultural issues
A new DNA analysis confirms that an ancient skull found in a Siberian cave was an early ancestor of man's best friend
The birds' plumage is even colder than the surrounding air, paradoxically insulating them from heat loss
Look for the comet just after twilight in the Northern Hemisphere's western sky, with the best viewing chances to come early next week
Ivory poachers slashed the population of the small elephants by 62 percent in the past decade--future losses at those rates will doom the species
Melting sea ice will open up shipping lanes across the Arctic, potentially making the Northwest Passage and North Pole navigable during summer
Thanks to global warming, hot air piles up at mid-latitudes and causes storms and heat waves to linger for long stretches of time, new research shows.
The level of soot in Beijing's air is off the charts, leading to higher risks of lung cancer, heart attacks and other health problems
Clouds above California contain dust and bacteria from China, the Middle East and even Africa, new research shows
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