🇺🇸 USAF — Project Blue Book
An object was observed in May 1963 over Haleiwa, Oahu, at a high altitude with a blue vapor trail. The witness, a soldier, saw it moving in a zigzag pattern westward, but the duration or disappearance details were not recorded. The lack of data prevented a conclusive evaluation.
Military officials considered various possibilities, from balloons to aircraft or astronomical objects, but none fit perfectly. The report was filed as insufficient for a definitive classification. Despite that, the case remains intriguing due to the clear visual description and the object's unusual behavior.