"I was standing on my back stoop looking at Mars. My gaze went from Mars to the horizon and I noticed a very strange looking plane and almost dismissed it, however I am curious and looked again. I saw a triangular black object flying from the South very low and very slowly towards the North, passing directly over me. The object was very easy to make out as the sky was very clear. I knew right away what I was looking at was not "common technology". I pursued the object on foot while talking on a cordless phone. There was no interference and absolutely no sound from the craft. I waved at it (I know, silly) as I followed it. The object had triangular lights along the edges of the belly, they did not flash and were an off white color. I could not pursue the object further as I ran out of road."