Project Blue Book Case File
Pittsburgh, Pa., September 1959September 1959
Summary
On September 15, 1959, Pittsburgh police investigated a loud explosion heard near Squirrel Hill in Frick Park. During their search, they found a yellow plastic cone-shaped object about nine inches across at the base and eleven inches tall. A red flashing light sat on top, with three wires that looked like antenna sticking out below it. The object weighed about twelve pounds and was scorched around the base.
Police turned the object over to the Army for examination. Later, when Air Force personnel examined it, they discovered the interior was packed with ordinary electronics: a lantern battery, flashlight batteries, a small electric motor from a hobby shop, mercury switches, and a transformer. The motor and switches powered the flashing red light, but the motor itself was not connected to anything mechanical. The antenna and transformer were not even wired into the circuit.
Air Force investigators ruled out the possibility that this was a weather balloon or any kind of scientific instrument. The object showed no sign of ever being airborne. An object that heavy would have left a noticeable impact crater if it had fallen from altitude, but none was found. The plastic cover and light bulb were both intact, another sign the object had never fallen. Instead, investigators concluded the object and the explosion were likely the work of college students playing a prank at the beginning of the school year. The flashing light and the whirring motor were probably designed simply to mystify whoever found it.
The complete case file, reproduced below, contains 10 pages as held by the National Archives.
Reported location
Pittsburgh, Pa., September 1959
Date of incident
September 1959
State / country
? / XX
Page count
10 scanned pages
USAF evaluation
unknown
Microfilm
T1206, Roll 36