Newly Discovered Asteroid 2016 RB1 will pass by Earth at a distance of 21,000 miles 07SEP2016     Asteroid 2016 RB1 is about 40 ft long and will safely pass by Earth at a speed of 33,000 miles per hour. It was just discovered on Monday, 05SEP2016.   With such little time between discovery and pass. this highlights how these events require priority pre-emergency planning and pre-preparation.  If