Project Blue Book Case File
Pittsburgh, PennsylvaniaAugust 1956
Summary
On August 18, 1956, a military witness in Pittsburgh, Pennsylvania, reported a single object. The sighting was recorded at 0208Z and lasted about one hour and forty-five minutes.
The witness described one circular object about the size of a baseball held at arm's length. The object had a pendulum-like swing. It was reported at about 10,000 feet altitude and was watched with the naked eye.
The Air Force said the description and the long duration pointed to an astronomical body such as Mars. The evaluation was astronomical.
Reported location
Pittsburgh, Pennsylvania
Date of incident
August 1956
State / country
PA / US
Page count
1 scanned page
USAF evaluation
unidentified
Microfilm
T1206, Roll 26