Blogger Alva Noë looks at new research showing apes understand what we think: They are able to differentiate how someone thinks something to be from how it actually is.
A mind-controlled robotic arm has pressure sensors in each fingertip that send signals directly to a paralyzed man's brain. It's still experimental, but could eventually help thousands, engineers say.
American farmers receive billions of dollars each year in "conservation payments" that are intended to protect the environment. Some environmentalists say the payments deserve scrutiny — and reform.
Economic disruption has been a big part of the political conversation. Free trade might be a net benefit to the U.S., but there are large areas of the country that bear the brunt of negative effects.
Climate change is threatening the world's coffee, a new report says. In the biggest coffee supplier on the planet, Brazil, rising temperatures are being felt to devastating effect.
President Obama has once again declared that humans should go to Mars by the 2030s. NPR looks back on his eight years in office to see whether he's put NASA on track to get there.
On Tuesday, activists targeted five pipelines carrying crude oil into the U.S. from Canada, as construction resumed on a North Dakota pipeline. Twenty-seven protesters were arrested.
Researchers often combine the results of many medical studies to evaluate treatments. But when the combiners have a financial interest, the results might be inaccurate, a scientist says.
Author John Hudak says federal law makes it hard to prove the medicinal value of marijuana. "As a Schedule 1 drug, it is very difficult to do research on the plant," he explains.