Removing bacteria and other impurities from water could be done more cheaply thanks to researchers at MIT. They're taking advantage of the way trees move water to filter it.
This will be a special year for the hundreds of enthusiasts who converge annually on W1AW, a small station in Newington, Conn., known as "the mecca of ham radio," to broadcast around the globe.
Information tracked by educational software can be of great help to teachers. But as Politico's Stephanie Simon explains, private companies can also monetize the data by selling it to marketers.
At Arlington National Cemetery, President Obama honored the sacrifices of those who died while serving in the military. We remember the stories of some of those who died in America's longest war.
In Gainesville, Texas, on Monday, World War II vets from a unit known as the Cactus Division will remember their fallen comrades. These veterans helped liberate Germany's Dachau concentration camp.
Memorial Day weekend kicks off the tourism season on the Jersey Shore, an area that's still rebuilding after Superstorm Sandy. At last, homeowners and businesses say, things are looking up.
President Obama made a surprise visit Sunday to Bagram Airfield in Afghanistan. The president addressed troops, thanking them for their service on the eve of Memorial Day. White House correspondent Scott Horsley is traveling with the president and joins NPR's Arun Rath.
Election watchers say Republicans could take control of the Senate in 2014, but to guarantee a win, some conservatives are floating ideas to broaden the party's appeal to the middle class.
Seven people are dead, including the shooter, after the incident near University of California, Santa Barbara. NPR's Scott Simon talks to KCLU reporter John Palminteri, who was on the scene.
The Atlantic's Ta-Nehisi Coates describes how the legacy of slavery extends to geographical and governmental policies in America and calls for a "collective introspection" on reparations.