🇺🇸 USAF — Project Blue Book
In 1947, several UFO sightings reached the hands of Project Grudge, including one in Northern Arizona. Dr. Hynek, the lead investigator, evaluated these cases and categorized them into astronomical and non-astronomical. Some cases were attributed to balloons, while others remained unexplained. This document shows how sightings were analyzed during a time of great public interest in UFOs.