As it approached the Earth's orbit , a Potentially Hazardous Asteroid literally came out of nowhere as it brightened 250 times in 15 days. On May 5, 2014, the NASA funded Catalina Sky Survey 60 inch telescope on Mt. Lemmon, AZ detected it. It was the fastest brightest asteroid I had ever seen. Fortunately, its orbit never brings it closer than about 4 times the distance to our Moon. We will need to keep track of it since the situation may change as it encounters other objects in space.