I was out for my nightly walk with my dog around 8 p.m. on Wednesday, October 24. It was a clear night; I looked up to check out the sky and saw an unusual object that had flown overhead and was heading south. The object had four pinkish-red lights in two rows of two with 12-16 smaller pale blue lights around the perimeter. I couldn't hear any sound from the object but I was near a busy road and there was a lot of traffic noise. It was traveling at a speed that would be consistent with a small, single engine plane. However, there were no navigation, strobe, or landing lights on the object. Since it was nighttime, I would only be guessing at its size and altitude--my impression was that the object was somewhere around ten feet by ten feet, and that its altitude was 800--1000 feet. Still, I thought I was looking at a small plane with some kind of light display attached, and I expected it to bank to the east for a landing approach to Kent County International Airport (the street I live on is directly along the west/east landing approach), at which point I would be able to see its navigation lights. Instead, the object made a sharp turn to the west and as it came out of the turn there was a flash of green light, and the red and blue lights disappeared. I waited several minutes to see if the object would return, but it did not. Duration of the sighting was 30-40 seconds.