Spherical UFO seen by Swedish pilot

Summary

In 1953, Swedish pilot Ulf Christiernsson reported seeing a metallic, spherical object moving at high speed near Hassleholm. The incident occurred on a clear day, and Christiernsson, an experienced aerial observer, described the object as shiny, symmetrical, and not identifiable as a meteorite or aircraft. His mechanic also observed it for several seconds before it disappeared under the clouds. The Swedish Air Force and military authorities investigated the case but found no conventional explanation.

The report includes details about the object's trajectory, moving in the opposite direction of the pilot's aircraft at low altitude without leaving smoke or condensation trails. Although Christiernsson had a controversial background, including past disciplinary issues, his observations sparked interest among authorities. Some speculated it could be a Soviet missile or an unidentified device, but no official confirmation was reached. The case was ultimately filed without a conclusive resolution.