🇺🇸 USAF — Project Blue Book
In July 1947, an UFO incident was reported in Oak Ridge, Tennessee, after an unknown object was photographed. The images showed a supposed "flying saucer" and its trail, which generated interest among military authorities. However, when analyzing the photographic plates, technicians concluded that the phenomenon was not real. It was discovered that the marks were caused by flaws in the developing process, such as drops of water or developer that had run down the film. Additionally, the continuous trail between two negatives indicated that the error spread from one image to the next. Ultimately, it was determined that there was no evidence of an unidentified flying object, and the case was closed.
The technical analysis revealed that the images did not show a real object, but flaws in the film caused by errors during development. Drops of water or developer had left marks that were interpreted as an object and its trail. Investigators concluded that there was no need for further investigation, as the object was never seen visually. Despite initial speculation, the case was considered irrelevant to intelligence projects. The photos and negatives were returned to the photographer, and the incident remained unresolved in military files.