The spacecraft has detected the nearest thing to Earth yet discovered — a planet that's a bit bigger and squarely inside the "habitable zone" for life.
Chicken bones unearthed in Israel may mark a turning point in human cuisine: They could be the earliest evidence of people raising chickens for food, rather than cockfighting or use in ceremonies.
Researchers at the Alzheimer's Association International Conference say there's growing evidence that women are more likely than men of the same age to develop Alzheimer's disease.
After a frightening article a few weeks ago in The New Yorker magazine about a potentially devastating earthquake in the Pacific Northwest, there's been a run on survival supplies there. NPR talks to the maker of survival kits about his business.
Scientists assume a wave of people from what's now Siberia crossed into North America via Alaska, maybe 23,000 years ago. Genetics support that, but may also suggest another wave from Australasia.
As long as pigs have existed, humans have weighed desire for their meat against disgust for how the animals lived and what they ate. Today we have fresh cause for worry about how pigs are living.
By targeting the process that creates toxic clumps of protein in brain cells, scientists hope to help not just Alzheimer's patients, but perhaps also people with Lewy body dementia and Parkinson's.