Project 10073 Record Card and Report — Glasgow AFB, Montana, 20 May 1964

On 20 May 1964, two separate groups of military personnel at Glasgow Air Force Base, Montana, reported observing an unidentified aerial phenomenon. The first group, located outside the base theater, described an irregular, white, circular object that appeared brighter than a star. This object moved horizontally from the southwest to the northwest over a period of approximately two hours. A second group, positioned on the roof of a barracks approximately one-quarter mile away, observed a similar object that they described as an irregular oval, similar in shape to a walnut. This group noted that the object's color varied with its intensity, appearing white when bright and tanish-orange when the intensity decreased. One observer in the second group used binoculars and reported that the object moved in a bobbing, pendulum-like pattern, tracing a 'C', 'G', or '?' shape, though this movement was not visible to the naked eye. The object eventually disappeared as if an electric light bulb had been switched off. Official reports from the base commander concluded that the sightings were likely natural phenomena, specifically attributing the observations to the planet Venus or the star Regulus, based on the duration and elevation of the objects relative to the horizon at the time of the sighting.