USAF · 1947 to 1969
Project Blue Book Case Files
The U.S. Air Force's 22-year investigation into reported UFO incidents, drawn from the National Archives. Each case below has a journalistic summary written from the original file. Use the search box to find a place or date, or filter by state and year.
6 cases in IL from 1952 · page 1 of 1
Chanute AFB, IL
1952 · unidentifiedOn the evening of September 16, 1952, three men in the control tower at Chanute Air Force Base in Illinois noticed an unusually bright bluish-white light in the sky. The object was…
Chicago, IL
1952 · unidentifiedOn June 11, 1952, a Chicago resident watched two dark blue, globular objects with grey centers move across the sky above northwest Chicago. The observer was standing outdoors about…
GRANITE CITY, IL
1952 · unidentifiedOn the night of February 13, 1952, radar operators at Granite City Engineer Depot in Granite City, Illinois tracked an unidentified object while conducting a bombing run evaluation…
Homewood, IL
1952 · unidentifiedOn April 28, 1952, in Homewood, Illinois, two civilian women reported an unusual object in the sky. The sighting happened about 1700 (5:00 p.m.) and lasted about three minutes. Th…
Lombard, IL
1952 · unidentifiedOn the morning of May 21, 1952, a spherical glass object struck a mailbox at a home in Lombard, Illinois. The impact happened around 5:30 a.m. and dented the rounded corner of the…
MOMENCE, IL
1952 · unidentifiedOn October 19, 1952, a GAP pilot and observer near Momence, Illinois, reported seeing a round silver ball flying at high speed at 1,000 feet altitude while on a search mission. The…
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