There was one silver metallic craft with small lights, no sound, no windows, no red or green lights, and no blinking light.There was only one craft. The craft was silver metallic in some areas and dark gray metallic in other areas. There was no center light on the bottom. There were small lights on the bottom and on one row in the side of the craft. The lights changed color in intensity and in hue, but not dramatically. There were no green lights and there were no red lights. The craft was a perfect square as seen directly from the bottom. The craft was a flattened diamond shape as seen from the side. The craft clearly had three or four levels on the bottom and on the top, each section smaller than the larger primary section which formed the main body of the craft. There was absolutely no sound. There was a feeling of static electricity in the air close to the craft. The craft came upon us fast. Then it hovered over our heads, about thirty feet away. Then it slowly moved away, returning in the same direction that it had come. The craft appeared to be about 50 feet X 50 feet square, each side being about 50 feet long. The craft appeared to be about 25 feet from the bottom tip to the top tip. If it had windows, we did not see them.