The space agency defied incredible odds to get its asteroid-hunting OSIRIS-REx spacecraft off the ground. Since then, the mission has upended everything we know about our solar system.
From nuclear strikes to giant spikes, discover the systems in place to prevent a collision and test your decision-making to see if you could avoid a catastrophic impact ...
Of the five asteroids set to breeze through on Thursday, only one of them fits the bill as a potentially hazardous asteroid (PHA), and that one won’t be coming close enough to cause any alarm.