A white object seen over Chicago in 1956

Summary

In March 1956, a witness in Chicago reported a round, white object appearing directly above them. The object moved back and forth for half an hour before fading from view. Although no photos were taken, the report classifies the sighting as a probable balloon, based on its upward motion and visual description. The civilian and military source confirms that the testimony was submitted through a control technician.

The official evaluation suggests the object was not an aircraft or an astronomical phenomenon, and the description best fits a balloon. Despite the lack of images, the report concludes there is not enough data to consider a more exotic explanation. This case, though brief, shows how UFO reports were rigorously analyzed at the time.