Pulp Magazine Cover, September 1956

This document consists of Project 10073 record cards (UFO report forms) and related military communications regarding unidentified aerial object sightings from Pueblo, Colorado in September 1956. The first report describes four round objects with red and green flashing lights observed through binoculars for two hours, with investigators concluding the sighting was caused by stars (Vega, Altoth, Dubhe, and Capella). A second report documents a single white, basketball-sized oblong object sighted for two minutes traveling on a straight flight path from east to southwest before disappearing; investigators evaluating this as probable aircraft. A third record card describes one round, bright white object the size of a grapefruit observed for thirty seconds at ninety-degree elevation flying northward; investigators determining this was probably aircraft. The sightings involved civilian observers including an ordinance depot employee and housewife, with evaluations processed through Air Technical Intelligence Center channels.