Puerto Rico's default on Monday raises pressure on Washington to step in with help and opens a new chapter in Puerto Rico's relationship with its lenders — one now expected to move to the courts.
The Koch brothers' political network of wealthy donors this weekend auditioned five GOP presidential candidates, another sign of billionaires' increasing political clout.
The drug derived from the venom of cone snails must be injected into the spinal column to get beyond a patient's blood-brain barrier and bring relief. But scientists think they may have a workaround.
Correspondent Don Gonyea tells NPR's Melissa Block that unlike official GOP debates, which will limit the number of participants, all the hopefuls were invited to to appear in Manchester on Monday.
Tiny Pearlington, Miss., was obliterated 10 years ago. In a town of 1,700, only two houses stood relatively unscathed. Volunteers did most rebuilding, for better or worse, and recovery has been slow.
Coyotes are becoming more and more common in urban areas, including Los Angeles. This summer, the National Park Service announced a first-of-its-kind survey of coyote behavior in the city. The researchers say the findings so far have been surprising.
A filmmaker has created a way to make Frank Lloyd Wright's masterpiece home, Fallingwater in Pennsylvania, accessible to those with physical limitations.
HitchBOT, the robot that hitchhiked across Canada and Europe, was found vandalized beyond repair in Philadelphia on Saturday. Its makers hope people remember "all the joy" it brought.