UFO sighted by military pilot in Minnesota

Summary

In April 1956, a U.S. Air Force pilot reported an object emitting rainbow-like colors that changed over time. The object appeared suddenly and moved erratically for about 40 minutes before fading from view. Although not detected on radar, its behavior suggested it might be a balloon.

The report details that the observer, a high-ranking officer, described the object as a point of light smaller than a pinhead. Despite its short duration, the phenomenon attracted attention due to its unusual movement and the inability to identify it as a known celestial body. The official conclusion pointed to a balloon, though other possibilities were not ruled out.