Project Blue Book Case #1628. On July 26, 1952, a bright object was observed over Kansas City, Missouri. This date is one of the most significant in UFO history — that very evening, unknown objects were being tracked on radar over Washington, D.C., for the second consecutive weekend, in events that would generate the largest Pentagon press conference since World War II.
The simultaneous appearance of unknowns over Kansas City and Washington, D.C. — separated by over 1,100 miles — illustrated the nationwide scope of the phenomenon during the wave's absolute peak. Reports from that single night came from locations across the country, creating a picture of something occurring on a continental scale.
Kansas City's position as a major transportation hub meant its airspace was busy with commercial and military traffic. Richards-Gebaur AFB to the south hosted fighter interceptor units. The AEC's Kansas City Plant manufactured nuclear weapons components. Despite this complex environment, the object could not be identified.
July 26, 1952, may have been the single most extraordinary night in Blue Book history. The simultaneous DC radar events, combined with unknowns from Kansas City and other locations, represented the absolute zenith of the phenomenon's challenge to the U.S. military.
The case was classified "Unknown."