Just west of Nampa, ID. Bright white light moves away rapidly.Walking north down my driveway when I saw something out of the corner of my eye. I looked in a NNE direction and saw a bright white light at about 60 degrees above the horizon. Perfectly still and about the size of 1/4 full moon. In approx. 2 seconds it began to move away from me at a constant high rate of speed. Within 5 seconds it had gone to a pinpoint and disappeared. They way it got smaller without shifting position above the horizon, it seemed to be moving directly away from me.The light had an odd "creamy" texture to it. Silent and very smooth movement, like a lighted aperture closing as it disappeared. Could not be mistaken for anything natural.