Dayton, OhioOctober 1957

On October 4, 1957, observers in Dayton, Ohio reported seeing an unidentified object in the evening sky. The sightings came from at least three separate witnesses and were documented on Air Force questionnaires now held in Project Blue Book records.

The first witness described seeing a single object that bobbed rapidly from side to side and up and down. The object appeared very high in the sky and seemed to have a red glow. The witness noted it looked more like a flattened ball than a perfect sphere. The Air Force evaluator noted these as typical characteristics of a balloon at sunset. A second witness reported a colorful object that changed brightness and flashed or shimmered, moving faster than the stars appeared to move. That evaluator concluded the sighting was definitely Venus. A third account described a blue glow with a fuzzy outline, about the size of a basketball, with an appearance resembling fluorescent light spread across roughly 200 feet along the horizon. This evaluator suggested the object was probably conventional ground lighting rather than an aerial phenomenon.

The three reports showed significant differences in how witnesses described the same events, and Air Force evaluators noted "certain unreliability" in the observers' statements. The file includes completed questionnaires from each witness, with sketches and detailed answers about what they saw, when, and under what sky conditions.

The case was marked "unidentified" on the official record card, though individual evaluators leaned toward conventional explanations: a balloon, the planet Venus, or ground lights. The full case file, containing 35 pages as held by the National Archives, is reproduced below.