A little MRI video seems to settle the decades-old debate about that loud pop of the joints: It's all about bubbles. But imagine an air bag inflating, not the bursting of a balloon.
Each state has its own stories. In Louisiana, nearly 200,000 people signed up for health insurance through HealthCare.gov, and about 90 percent now get subsidies. What if that help goes away?
The panels, funded by government grants, are helping thousands of tribal residents take advantage of the everyday luxuries enjoyed by other Americans — like turning on lights or storing food.
More migrants are leaving from chaotic Libya in a bid to reach Europe. The overcrowded boats are at risk of sinking, and some do. A Syrian man tells of the treacherous journey with his young son.
The U.S. and Saudi Arabia are imposing sanctions on a Pakistan-based charity thought to be funneling money to terror groups. NPR's Rachel Martin speaks with Daniel Glaser at the Treasury Department.
Much of the world is skeptical about the wisdom of the bombing raids in Yemen. But Saudis are rallying around their new king, Salman, and his son, the defense minister.
The 2010 explosion at the Deepwater Horizon rig set off an environmental and economic catastrophe. Towns and ecosystems along the Gulf Coast are still struggling to rebound.
Earlier this month, lawmakers said they had no confidence in Michele Leonhart after a watchdog agency found Drug Enforcement Administration agents cavorted with prostitutes paid for by drug cartels.
This week, Google started prioritizing mobile-friendly websites in Google searches made on a smartphone. The change could hurt businesses whose sites don't pass Google's mobile-ready test.