> It is now believed to be 53 to 67 meters, roughly the height of a 15-story building. > This is significant because it is bigger than the 50-meter threshold f

> It is now believed to be 53 to 67 meters, roughly the height of a 15-story building. > This is significant because it is bigger than the 50-meter threshold for activating planetary defense plans. > If the asteroid still had a more than 1% chance of hitting Earth, "the development of one or more deflection missions would already be starting now", Moissl said. Well, I hope they are right, because it appears we’re going to miss the opportunity to do anything about it if they are wrong.