🇺🇸 USAF — Project Blue Book
In July 1952, multiple witnesses in Santa Cruz, California, reported seeing four circular objects flying silently without leaving vapor trails. These objects, roughly the size of a B-17 bomber, chased each other for several minutes. The first sighting occurred at 22:40 and was lost at 23:45, but was spotted again at 23:55. A single aircraft was dispatched to intercept them, but no contact was made. The weather was clear, and the main observer, identified as "Miss 11," alerted local police. Despite several attempts to identify the objects, they remained unexplained.