UFO in Derby, Colorado, a red dot in a 1958 photo

Summary

In September 1958, a citizen of Derby, Colorado, captured an image of a B-47 vapor trail. When projecting the slides, he noticed a red dot that had not been visible when the photo was taken. Intrigued, he contacted military authorities, who analyzed the image. The red dot was determined to be a hole in the film emulsion, caused by a defect or perforation. Although it initially appeared to be an unidentified object, technical analysis dismissed it as a common photographic anomaly. The story illustrates how seemingly strange details can have simple explanations.

The case was documented by the U.S. Air Force in an official report, concluding there was no evidence of an unidentified flying object. The citizen received his slide back with a detailed explanation. This type of historical record shows how authorities handled UFO reports with rigor, even when the answers were mundane. Despite the disappointment, the process reflects the investigative methodology of the time.