One absolutely enormous, maybe 500 yards dia sphere, two smaller spheres emitted in front and behind(approx date)April 2013 about 9:00pm Three-Points, 20 miles SW of Tucson. First, one extremely large white/blueish circle, or sphere appx 500yrds in dia followed by two more circle/spheres about a quarter the size of the first. One obviously behind the first and low, almost to the bottom edge of the first, and the other in a similar postion in front of the original circle/sphere.The surface of the circle/spheres was almost electrical. They seemed almost uniformly bright but washed out white. The electrical texture was not moving as electricty would, not moving at all. The size was easy to determine by the position. They were before the mountains, the Sierrita Mountains.They sat between Hilltop Road and some where over or beyond the Three-points fire station. The light from them did not affect the surroundings, as if not emitting light - but incredibly bright and uniform themselves.The first simply appeared, not there, then there. The other two smaller objects appeared in a similar fashion. They stayed there for about 15 minutes. I was to scared to tell anyone. I was driving a small scooter at the time, no cell phone, no camera. I drove back to Fullerton Road with these things to the right of me. As I turned onto Fullerton, they vanished instantly as they had appeared.A car drove up at the intersection and saw me standing beside my scooter and asked if I was okay. I said yes, wondering if they had seen it too. I was too scared to say anything else. They stayed for a few minutes, lending to my curiosity as to whether they did see it, and were to scared to mention it as well. I went home shaken, grabbed a camera, and accidently clicked it. The flash was on, and it must have attracted the attention of a neighbor in that direction who must have thought I was spying on them, as they flashed a camera back towards me.I went inside, and let the incident go. I am writing this nearly a year later, before I forget any of the details. I'm still surprised that such an incredbly gargantuan object didn't create more of a stir.((NUFORC Note: Witness indicates that the date of the sighting is approximate. PD))