NASA will test its asteroid defence systems by slamming a high-velocity spacecraft into a pair of distant asteroids, in a daring attempt to significantly shift one of their orbits.
NASA asteroid: Daring plan to save Earth by derailing 2,600FT asteroid system REVEALED
NASA will test its asteroid defence systems by slamming a high-velocity spacecraft into a pair of distant asteroids, in a daring attempt to significantly shift one of their orbits.