Driving home on a clear night, approaching stop sign in rural area noted brightly lit craft flying very slowly directly towards me at low altitude. the white spotlights were very bright and spaced widely apart, making a helicopter unlikely so i stopped at the intersection to observe what seemed like a strange phenomenon. it took about three minutes to reach me, traveling less than a mile. as it got closer i saw a blinking red light on the nose and thought "plane". but it was so slow, low and silent. moments before it would have been overhead, it made a perfect ninety degree turn. at that point i could see its underbelly clearly. it was a perfect black triangle, slightly wider at the back than the sides (triangle tip facing forward for flight) with white and red line of lights along the back flashing in a sequence back and forth. shortly after it turned it traveled behind the treeline and i continued on my way home.