A Swedish biologist wants to change the genes of healthy human embryos to find ways to treat infertility and other diseases. The experiments intensify ethical questions about genetic engineering.
Executive Editor Dean Baquet says "it would almost be illiterate" to call Donald Trump's longstanding claim that President Obama was born outside the U.S. anything but a lie.
Law and order have been a major theme this year on the campaign trail. But that means very different things to the two major party presidential candidates.
What can a city in decline do to make a comeback? In Springfield, Ohio, a new school is trying to turn the tide. But local leaders say keeping young people from moving away is key to economic revival.
Drug resistance is no longer a matter of health. It could have massive implications for the world's economy and food supply.
Capt. William Prickitt commanded a company of black soldiers during the Civil War. When he took ill, they saved him. A photo album that he carried the rest of his life has preserved their identities.
"I'm very clear that we're going to make a success of coming out of the European Union," the British prime minister tells NPR's Steve Inskeep.
Analysts say Saudi Arabia's national oil company may be trying to buy a refinery in the U.S. It's part of an effort to build an economy that goes beyond oil exports.
President Obama speaks to the United Nations General Assembly on Tuesday. It'll likely be his last time to do so as president.
A study of 17 people who have been blind since birth found that areas of the brain usually devoted to visual information become active when a blind person is solving math problems.