🇺🇸 USAF — Project Blue Book
This 1949 report describes a UFO sighting in western Mexico, near Los Alumes. The object was observed for two seconds and described as bright green in color. According to the report, the object initially moved slowly and then accelerated in an unusual manner. It was seen at a low altitude in the sky, drawing attention from witnesses. The report, marked as urgent, was provided by army employees, adding credibility to the account.