Project Blue Book Case File
Harrisburg, PennsylvaniaJune 1955
Summary
On June 1, 1955, a civilian Ground Observer Corps member in Harrisburg, Pennsylvania saw a single object. It was a round sphere, silver in color, about the size of a basketball. It was seen to descend from high in the sky toward some railroad tracks.
No further evidence was found later. The intelligence officer of an Air Force squadron stated that twelve other people were present at the time of the supposed sighting. Those witnesses reportedly saw nothing unusual.
The Air Force record lists the conclusion as an optical illusion. Officials said the fact that others saw nothing strongly suggested an optical illusion.
Reported location
Harrisburg, Pennsylvania
Date of incident
June 1955
State / country
PA / US
Page count
1 scanned page
USAF evaluation
unknown
Microfilm
T1206, Roll 23