Drifting SpaceX rocket heading for accidental collision with moon

Scientists and sky gazers will watch intently as rocket’s upper stage slams into lunar surface on WednesdayA drifting SpaceX rocket is on a collision course with the moon after launching a pair of lunar landers more than a year ago.The rocket’s upper stage will unintentionally slam into the moon on Wednesday, carving out a crater and sending up a plume of dust and rubble that scientists – and sky