NASA Launches Mission That Could Deflect Dangerous Asteroid From Hitting Earth

NASA has launched a spacecraft to test technology that aims to deflect a dangerous asteroid off its course and avert collision with Earth. The US space agency's Double Asteroid Redirection Test (DART), the world's first full-scale mission to test technology for defending Earth against potential asteroid or comet hazards, launched Wednesday at 1:21 a.m. EST on a SpaceX Falcon 9 rocket from Space L