Project 10073 Record Card and Air Intelligence Information Report — Las Vegas, Nevada, 1 August 1958

This document is an Air Intelligence Information Report (IR-2-58) regarding an Unidentified Flying Object sighting that occurred on 1 August 1958 in Las Vegas, Nevada. The report, prepared by Wing Intelligence and signed by Lt. Col. Harvey M. Davis, details an observation made by two witnesses, identified as an airline pilot and an airline stewardess, who were located at an apartment complex south of the local railroad station. The witnesses observed a single, round, white object, described as being the size of a pea, which appeared to be spinning in a straight line of flight toward the west. The object was reported to have hovered, during which time it emitted light like a star, and then increased in intensity as its speed increased. The total duration of the sighting was approximately seven to eight minutes. The report includes a supplement to AF Form 112, which provides technical details regarding the sighting, including weather conditions at the time, which noted 2/10 cloud cover and thunderstorms in the northwest quadrant. The official conclusion reached by the investigators was that the object was a 'Probable balloon.' This assessment was based on the object's characteristics and the fact that Nellis AFB weather units frequently launched balloons for wind testing prior to flight operations. The report notes that the case was considered to have insufficient data for a more definitive evaluation due to the delay in reporting and the inability to verify specific balloon launch schedules for that time.