Sighting in Philadelphia, May 1959
Pennsylvania, United States
Sighting reported in May 1959 (Philadelphia, Pennsylvania, United States) and investigated by Project Blue Book, the US Air Force UFO investigation (1947-1969). The Air Force's conclusion is in the digitised case file held by the US National Archives.
The original file is a set of scanned documents (reports, sketches, correspondence) that has not been transcribed yet. You can browse it page by page through the source link.
- Date
- May 1959
- Location
- Philadelphia · town centre
- Type of sighting
- From the ground
Sources
- See the original document
Project Blue Book (NARA)
n° 28983273
Summary written by SkyUnknown from the facts published by the source.