🇺🇸 USAF — Project Blue Book
In 1965, a civilian observer reported seeing three aerial objects near San Gabriel, California. One of them appeared to be a "mother ship," maneuvering over the area for more than an hour. The witness used binoculars, but his description was vague, mentioning color changes and a "humming" sound. Despite the long observation time, no precise data was provided to identify the object. Authorities tried to contact the informant for more details, but their attempts were unsuccessful.