Project Sign
Project Sign was an official U.S. government study of unidentified flying objects (UFOs) undertaken by the United States Air Force and active for most of 1948.
Project Sign's final report, published in early 1949, stated that while some UFOs appeared to represent actual aircraft there was not enough data to determine their origin.[1]
Project Sign was first disclosed to the public in 1956 via the book The Report on Unidentified Flying Objects by retired Air Force Captain Edward J. Ruppelt.[2] The full files for Sign were declassified in 1961.[3]
References
- ↑ Blum, Howard, Out There: The Government's Secret Quest for Extraterrestrials. Simon and Schuster, 1990
- ↑ Edward J. Ruppelt (1956). The Report on Unidentified Flying Objects, Doubleday & Co. online
- ↑ Hoyt, Diana Palmer (2000). UFOCritique: UFOs, Social Intelligence, and the Condon Committee; Master's thesis, Virginia Polytechnic Institute and State University.
Notes
Further reading
- Dolan, Richard M. (2002) UFOs and the National Security State: Chronology of a Cover-up 1941–1973, ISBN 1-57174-317-0
- Peoples, Curtis (1994). Watch the Skies! - A Chronicle of the Flying Saucer Myth. Smithsonian, ISBN 1-56098-343-4.
External links
| Preceded by None |
US military projects investigating the UFO phenomenon | Succeeded by Project Grudge |
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