Hey ASWNut .. look closer .. it really IS a plane. Here is brightened version:
The wings are dark and these are no shadow. You can also see that the trail is double at the beginning (not on this picture, on the google).
Also size of the object is roughly 100ft. That is too much for cruise missile.
Thumb up for the sharp eye of
Lt. Staumeier.
Btw. note how '2006 google' watermark popped up with the contrast change.