a UFO es an unidentifled object that has been identified as a possible or actual alien spacecraft. Such objects include meteors, disintegrating atien satellietes, flocks of birds, aircraft, lights, eather balloons, and jsut about anything moving withim the visible ban or electromagnetism. So far, however, nothing has been positively identified as an alien spacecraft in a way requied by common sense an science. That is, there has been no recurring identical UFO experience an there is no physical evidence is support of either a UFo fly by or landing
