Project Blue Book Case File
Sioux City, IowaMarch 1956
Summary
On March 21, 1956, a civilian at Sioux City, Iowa, reported one object at 2330 (about 11:30 p.m.). The report was made under Project 10073, the Air Force's official record for unidentified flying object reports.
The witness, a car salesman, said the object was round and about the size of an orange. It had the appearance of a star and grew larger toward the west. It stayed at about a 45-degree angle and gained altitude. The object was in view for only a few seconds. The sky was broken.
The Air Force concluded the sighting was probably astronomical, a probable meteor.
Reported location
Sioux City, Iowa
Date of incident
March 1956
State / country
IA / US
Page count
4 scanned pages
USAF evaluation
unknown
Microfilm
T1206, Roll 25