My kids were outside and noticed a bright light they thought was a planet in the sky. they were looking at it because it looked odd and seemed to be moving. The object looked to low in the sky to be a star or planet. a airplane was on a direct course with the object. The object, which was 3 to five times bigger thean the plane, then shot under the plane as if to avoid it. The object had looked as if it were in slow decent until it encountered the aircraft. It moved under the plane in an impossible manuver and then shot upward at a 45 degree angle out of sight. The object shot of in the sky and disapeared from view in less than a second.