A new report shows that rates of undernourishment have gone down in most countries, but in others, the problem of food access is far from solved.
A new study suggests that people evolved distinct faces because this variability eases recognition.
Residents await a slow-moving threat from the Kilauea volcano.
Smart planning and new technologies are key to a brighter future, says a report from Global Commission on the Economy and Climate.
From the early atomic advances in Chicago to the bunkers built for U.S. leaders in wartime, eight places tell the story of the nuclear age.
The European Space Agency's Rosetta mission picks a target site for landing a robot on a comet's challenging terrain.
David Rubenstein practices what he calls patriotic philanthropy. Among his efforts: buying an original 1297 Magna Carta, an Emancipation Proclamation, and a Declaration of Independence for public display.