Enlarge Kirsty Wigglesworth/AP An unmanned U.S. Predator drone flies over Kandahar Air Field in southern Afghanistan on Jan. 31, 2010. Drones have become the U.S. weapon of choice in the fight against terrorism. But as the technology of this new form of warfare improves, so do concerns about how others will use it in the

Enlarge Miami Herald/MCT via Getty Images Astronauts Shannon Walker and David Saint-Jacques test a probe in the waters off Key Largo, Fla. Their research may help NASA set foot on an asteroid someday. Miami Herald/MCT via Getty Images Astronauts Shannon Walker and David Saint-Jacques test a probe in the waters off Key Largo, Fla. Their

Investigators were searching for a gunman who killed three people including two former Auburn University football players and wounded three others at a pool party near campus after several men began punching each other in a fight over a woman, authorities and witnesses said Sunday. One of the wounded was shot in the head and

Firefighters on Sunday were fighting wildfires that have spread quickly in parched forests in Colorado and New Mexico, forcing hundreds of people from their homes and the evacuation of wolves from a sanctuary. The Colorado fire, burning in a mountainous area about 15 miles west of Fort Collins, grew to 22 square miles within about

Enlarge Denis Doyle/Getty Images Graffiti on a wall in Madrid reads, “We want to work, let the businessmen who have gotten rich from our labor pay for the crisis.” Nearly 50 percent of young adults in Spain are unemployed. Denis Doyle/Getty Images Graffiti on a wall in Madrid reads, “We want to work, let the

Enlarge David Duprey/AP Nik Wallenda walks a tightrope in the rain during a training session for his upcoming stunt in Niagara Falls, N.Y. David Duprey/AP Nik Wallenda walks a tightrope in the rain during a training session for his upcoming stunt in Niagara Falls, N.Y. Niagara Falls has long been a magnet for daredevils, but

Enlarge Bill Chappell/NPR Craft brewers are reaching markets far from their home breweries. In a Washington, D.C., store, beers from California, Colorado, Louisiana, Vermont, and elsewhere are for sale. Bill Chappell/NPR Craft brewers are reaching markets far from their home breweries. In a Washington, D.C., store, beers from California, Colorado, Louisiana, Vermont, and elsewhere are