🇺🇸 USAF — Project Blue Book
A white object was observed over Point Mugu, California, on January 28, 1953, at 21:00 hours. A civilian man saw it moving at high speed eastward, after a jet had disappeared from his view. The observer watched it for six minutes but could not identify it as a conventional aircraft. The official conclusion was "unknown," meaning no conventional explanation was found. The report data indicate there were no photos or physical evidence, and the observation was ground-visual. This case is a classic example of an unidentified UFO, where authorities rule out conventional explanations.