Unidentified Circle of Light accelerates and disappears at very high altitudeMy Wife noticed a far away light Moving Up above and slightly north. she asked me immediatly to look and see since the light was moving seemingly fast, and was far away compared to the normal high altitude aircraft we see. When I looked up I saw light about the size of the stars around but it was more of a solid circle than the fuzzy stars. The Object was moving not too fast in my opinion at first, but moving Slightly to the Southwest it picked up speed very rapidly and the Mostly white with a blue haze vanished or it almost seamed to give off a sigle Dim flash effect, like that of a old lightbulb going out. I had looked at the time right before my wife asked me to look and the time it took was definatly not more that 6 seconds, I would say 4 seconds is the correct length of time. I know it hard to judge altitude but after observing other planes and even high flying jet fighters in the area, that the object appeared ither in the sub-atmosphere or farther out into space. But there is not really and way of knowing it actuall distance.((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))