Circular UFO over San Antonio 1952

Summary

A 1952 report describes a circular UFO seen over San Antonio, Texas. The observer, a woman from San Antonio, described it as a round object with bright yellow lights that appeared to rotate or pulse. The object moved side to side like a pendulum and then disappeared at high speed. No sound, exhaust, or visible propulsion was noted. The observer, who worked at Kelly Air Force Base, stated it wasn't a conventional aircraft. While a balloon was considered, the final evaluation was "possibly a balloon," with insufficient data. The case stands out for its detailed description and the observer's confusion over an object that defied known categories.