Project 10073 Record — Sighting Report, August 1, 1966

This document contains a Project Blue Book sighting report and subsequent correspondence regarding an incident on August 1, 1966, in District Heights, Maryland. The witness, a physicist and engineer, reported observing an object that appeared in the north, moved toward the south, and hovered over a house for approximately 10 seconds. The witness described the object as having unusual, sharp, monochromatic colors—red and green when high in the sky, and red and yellow when lower. He noted that the object appeared to have a 'mechanical action' upon arrival and estimated its speed at 3000-4000 miles per hour at an altitude of 200-300 feet. The witness, who was driving at the time, claimed to have observed the object for a total of 10 minutes, though he lost sight of it for a period. Following the report, Major Hector Quintanilla of Project Blue Book forwarded the documentation to Dr. Donald H. Menzel of the Harvard College Observatory for expert analysis. Dr. Menzel provided a critical assessment, arguing that the witness's account was inconsistent and that the two objects described were likely distinct phenomena. Menzel concluded that the first object was a bright meteor and the second was likely a low-lying cloud or a searchlight reflection. He further criticized the Project Blue Book questionnaire as 'defective' for failing to ask critical questions, such as the witness's seating position in the car or whether the car's top was down, which would have clarified how the witness could have observed the object while driving. Menzel expressed skepticism regarding the witness's observing ability and the overall quality of the Air Force's investigation process.