project blue book

Project Blue Book – UFO over York, Pennsylvania – 13 October 1952

Object resembling planet Jupiter headed in easterly direction, then made a turn to the south. Object in sight for 12…

January 23, 2022

Project Blue Book: The RB-47 UFO Incident — July 17, 1957

On July 17, 1957, an encounter took place that remains one of the most well-documented and scientifically interesting in UFO…

December 9, 2021

Project Blue Book: Ravenna, Mantua, Ohio — April 17, 1966

Here is a short case summary from the Project Blue Book file on the case: A report of a UFO…

August 17, 2021

Project Blue Book: Presque Isle State Park, Pennsylvania — July 31, 1966

Background In this particular Project Blue Book case, witnesses describe multiple UFOs seen at Presque Isle State Park, Pennsylvania, on…

March 24, 2021

Project Sign, Project Grudge, and Project Blue Book – Air Force UFO Research Programs (1947-1969)

Background Project Sign was an official U.S. government study of unidentified flying objects (UFOs) undertaken by the United States Air…

March 3, 2021