🇺🇸 USAF — Project Blue Book
In December 1966, a witness in Philadelphia reported an unidentified aerial object. According to the report, the sighting was visual from the ground, and no precise data on duration, trajectory, or characteristics of the object were recorded. The U.S. Air Force concluded that the information provided was insufficient for a scientific evaluation. The witness was invited to complete a detailed questionnaire, but no photographs or physical evidence were included. The case was archived without definitive conclusions.