Project 10073 Record Card — Wilmington, Delaware, 28 October 1957

On 28 October 1957, at night, Airman Third Class Leo L. Fox of the 82nd Air Base Squadron, stationed at New Castle County Air Base in Wilmington, Delaware, observed an unidentified aerial phenomenon. The witness reported seeing five circular objects emitting a pale white light. The objects were arranged in a specific formation, with three in a line on top and two in a line below, occupying a space equivalent to the size of a half-dollar held at arm's length. The objects traveled in a straight line without maneuvers, moving from the zenith to approximately 20 degrees above the northern horizon before fading out. The entire event lasted between two and three seconds. The weather conditions at the time were reported as clear with very few clouds. Lieutenant Colonel Bradley F. Prann, the Group Operations Staff Officer, conducted a personal interview with the witness. In his report, Prann noted that the observer appeared to be intelligent and perceptive, yet no definitive explanation could be provided for the observation at the time of the report. The official conclusion recorded on the Project 10073 record card and the intelligence report suggests the objects were likely astronomical in nature, specifically a meteor. The report was distributed to the Air Technical Intelligence Center (ATIC), the Air Defense Command (ADC), and the Assistant Chief of Staff for Intelligence (ACS/I) at Headquarters USAF.