One of the primary tools that U.S. transportation departments count on to keep roads safe is road salt. But that's meant rising levels of chloride in many northern streams.
In the 1920s, working-class women were hired to paint radium onto glowing watch dials — and told to sharpen the brush with their lips. Dozens died within a few years, but Keane quit, and survived.
Until the early '90s, young children often weren't tested for hearing loss until they had already missed out on a critical period for learning language. Dr. Marion Downs was determined to change that.
An agreement between the Tennessee Hospital Association and Republican Gov. Bill Haslam expands Medicaid without tax dollars, an agreement that could be a blueprint for other states.
Most Americans know about the Underground Railroad, which allowed Southern slaves to escape to the North. But some slaves stayed in the South, hidden in a place where they could resist enslavement.
The United Nations will be 70 years old next year. NPR's Rachel Martin talks to former U.S. Secretary of State Madeleine Albright about the difficult challenges the organization faces.
President Obama will face opposition in 2015 in both the House and Senate. NPR's Linda Wertheimer talks to historian Michael Beschloss about how Obama will (or will not) work with the 114th Congress.
An AirAsia plane has disappeared over the Java Sea. The plane took off from Indonesia's second-largest city and was headed to Singapore.
Sandra, a shy Orangutan in Argentina, has been granted some legal rights that will allow her some freedom. NPR's Linda Wertheimer tells us more.
More than 17,000 protesters have marched in Dresden protesting what they call the "Islamification of Europe." NPR's Linda Wertheimer talks to Josef Joffe, editor of the German weekly Die Zeit.