Millions are still uninsured, even as the Jan. 31 deadline to sign up for a plan under the Affordable Care Act approaches. No deadline extensions this year, federal health officials warn.
Scientists need curiosity, determination — and luck. We're especially interested in that last bit, so tell us your stories of mistakes and surprises that led to discoveries in the past few years.
Clay tablets confirm that 14 centuries before Europeans first mapped the movement of planets, Babylonian astronomers were doing it. In a way, scientists say, their techniques were "very modern."
When the gloomy octopus of Australia turns dark and towers threateningly over his neighbor, he's likely signaling aggression, scientists now say. Neighbors get the message — they turn pale and flee.
The weather trail that led to a blizzard in the Mid-Atlantic likely started with a very warm Pacific, scientists suspect. Whether climate shifts will bring more strong El Niños is still uncertain.
The National Park Service is hiring a full-time photographer to document the country's natural landscapes. NPR's Audie Cornish talks to Rich O'Connor of the National Park Service photography program about the position, which some are comparing to the job held by Ansel Adams in the 1940s.
Oysters from the Pacific Northwest have long been the most coveted for their sweet, mild flavor. But they now have more competition from Southeast oysters cultivated from Virginia down to Florida.
In a milestone for computers, a machine learned to play and has now beaten the European champion of the game.
A political fundraising experiment reveals: Small donors are more likely to open their wallets for political campaigns when they're told other donors who support a rival candidate are being generous.
The spread of Zika is probably limited by window screens and other mosquito-control measures in common use in the U.S. Also, the primary mosquito that carries Zika has a somewhat limited range.
The famed astrophysicist got into a Twitter spat with the rapper, which then turned into a bona fide rap battle.
Passaic River polluters are telling local fishermen to trade contaminated catch for healthy tilapia. But there's no disposal plan for the toxic fish, and residents don't want them to be incinerated.
NPR's Robert Siegel speaks to Ray Kurzweil, the inventor and futurist, and founder of Kurzweil Technologies, Inc., about Marvin Minsky. Minsky, who was a founding father of artificial intelligence, has died at the age of 88.
Despite the progress represented by the Iran nuclear deal, rising tensions between the U.S. and Russia, North Korea's nuclear tests and other conflicts mean the world is still close to catastrophe.
Archaeologists found the 2,100-year-old tea leaves in the tomb of a Han dynasty emperor, suggesting tea was highly valued. But was the emperor drinking tea as we do, or using it as medicine?
A 2012 New Jersey law was meant to help juries discern factors that make eyewitness testimony strong versus weak. But research suggests a judge's instructions make jurors discount all such testimony.
The world's leading medical journals have a proposal that could transform medical science: Researchers would have to publicly share their clinical data to get their studies published.
Following 11 years of brutal civil war, perpetrators and victims are forging peace around bonfires across Sierra Leone.
WHO says the infection is moving fast because the mosquito carrying Zika is widespread in the hemisphere, and the population is not immune to the virus. Only Canada is likely to be spared.
Some health plans in Massachusetts are putting tighter limits on painkiller prescriptions. Others are hiring their own social workers to help customers who struggle with opioid abuse quit for good.