Close call? Asteroid could pass Earth by 11k miles, 95% closer than the moonwww.rt.comA recently discovered asteroid is scheduled to fly by Earth in March, but NASA can’t quite tell how far away it will be when that happens. One estimate is as close as 11,000 miles, about 95 percent closer than the moon. The asteroid known as 2013 TX68,Luxembourg wants to mine asteroids for mineralswww.rt.com....