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Scientists have tried for years to grow artificial kidneys in the lab. They've gotten a bit closer by using stem cells to create an "organoid" much like a fetal kidney. But it's missing key parts.

Volkswagen faces two enormous repair jobs: fixing its polluting diesel cars and its battered reputation. Both may be much harder to fix than anything other scandal-plagued car companies have faced.

In the post-World War II economy, most Americans lived in middle-income homes. But that has been shifting for decades. Today, middle-income families make up less than 50 percent of all households.

Turkey said the plane violated its airspace and that it had issued 10 warnings before firing. Russian President Vladimir Putin said the downing was a "stab in the back by the terrorists' accomplices."

The Affordable Care Act requires insurers to cover a screening colonoscopy without any out-of-pocket costs for the test itself. But there can be surprising costs for consumers anyway.

In her memoir Whatever ... Love is Love, Bello describes the evolution of her "modern family," which includes her romantic partner (a woman), her adolescent son and her son's father.

In the 1990s, hundreds of thousands of Somalis fled war and found a new home — and new opportunities — in Dadaab, a refugee camp in Kenya.

Call it Comb-overgate. When Josh Earnest took a shot at Donald Trump's hair, NPR's Mara Liasson wanted to know what that had to do with whether Trump is running a serious campaign.

As the debate has shifted away from comprehensive immigration overhaul and toward the idea of mass deportations, a group created by Facebook's Mark Zuckerberg is trying to refocus the conversation.

Two new studies of the dwarf planet might make it harder for people to imagine Ceres as a space colony or way station for an advanced race.