Dale Earnhardt Jr. won the rain-delayed Sprint Cup Series race at Daytona International Speedway on Sunday night as a horrific ...
(Associated Press files)
March 27, 2013
A NASA Global Hawk robotic jet sits in a hangar at Dryden Flight Research Center in Edwards Air Force Base, Calif., in 2010. The Federal Aviation Administration is looking for six sites to test drones before they are integrated into the civilian airspace. Fifty teams from 39 states have applied for the chance to boost their economies.