Large v/triangle shaped craft that moved silently. disappeared at incredible rate of speed. i was driving home when something very large in the eye caught my eye. i was stopped at a light near my home and only got 15-20 secs of view. the craft was very large v/triangle shape. 9-10 lights lining the v pattern. i heard no sound from the craft. the craft was heading ne at an estimated 15-20k feet. dark in color either black or dark gray. it made 2 movements. it seemed to descend rapidly and then abruptly shot out of sight along the same path it was traveling. i am not aware of any other witnesses to this phenomenon. life changing.