Project 10073 Record Card — Sighting Incident 5 November 1957

This document is a collection of reports and record cards compiled under Project 10073 regarding a series of sightings on November 5, 1957, in the Midwest United States, specifically near the Illinois-Wisconsin border and Galesburg, Illinois. The primary incident involves a civilian witness who reported a large, triangular, red object with a green light in front and a yellow or gray rear. The object reportedly emitted a low droning sound and was observed for approximately eight to nine minutes, moving between west and east before disappearing through trees. The witness also reported a pungent odor, which investigators suggested might have been of local origin, such as a hot engine or an arc welder. Other reports included in the file describe similar sightings in Galesburg and near Spooner, Wisconsin, where witnesses described oval or egg-shaped objects. The official conclusion reached by the Air Technical Intelligence Center (ATIC) was that the phenomena were likely auroras. The documentation includes internal military communications, record cards, and press clippings, reflecting the military's effort to categorize these sightings. The reports were processed through the 755th ACWRON and forwarded to the Air Intelligence Center and other command units. The documentation also notes that the witness's description of the object's shape and lights could be interpreted as an F-100 series aircraft, particularly given the location near an active airway.