Multiple flying objects at different heights but in same general area. Some move throughout the sky but others seem to stay stationary. All have flashing/glowing lights that seem to flash very rapidly. One craft flew in a large circular direction with flashing green lights. A plane could not have flown in this pattern and it seemed to fly too slow for a plane. It was not a helicopter because it flew extremely steady and it made no noise. This craft was the closest to our house.