Remember 1997 XF11? that gave everyone a right scare. It'll pass close to us (about 2.4 times the distance from us to the moon) in 2028, october. (lot of asteroids around then it seems...) It was originally predicted to hit us, but then the science team "forgot to carry the y" and found it would miss. personally, I'm always a bit weary of hearing "oh, don't worry, it's not going to hit us, the original statement was false" because regardless of their tragectory, that's what they'd have to say. Otherwise, people would stop making food, going to work, paying their bills, etc - like countless "doomsday" cults have done throughout the centuries and ended up starving to death after they didn't die as predicted.