WATCH: NASA s DART spacecraft crashes into an asteroid in humanity s first-ever test of planetary defense kesq.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kesq.com Daily Mail and Mail on Sunday newspapers.
A NASA spacecraft rammed an asteroid at blistering speed Monday in an unprecedented dress rehearsal for the day a killer rock menaces Earth. The galactic grand slam occurred at a harmless asteroid 7 million miles away, with the spacecraft named Dart plowing into the small space rock at 14,000 mph.