65_HS1-834228961_62-HQ-83894_Section_010

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UFO FACT SHEET
On December 17, 1969 the Secretary of the Air Force
announced the termination of Project Blue Book, the Air Force
program for the investigation of UFOs.
The decision to discontinue UFO investigations was based
on an evaluation of a report prepared by the University of
Colorado entitled, "Scientific Study of Unidentified Flying
Objects;" a review of the University of Colorado's report by
the National Academy of Sciences; past UFO studies; and Air
Force experience investigating UFO reports during the past
two decades.
As a result of these investigations and studies, and
experience gained from investigating UFO reports since 1948,
the conclusions of Project Blue Book are:
(1) no UFO reported,
investigated, and evaluated by the Air Force has ever given
any indication of threat to our national security; (2) there
has been no evidence submitted ~o or discovered by the Air
Force that sightings categorized as "unidentified" represent
technological developments or principles beyond the range of
present day scientific knowledge; and (3) there has been no
evidence indicating that sightings categorized as "unidentified"
are extraterrestrial vehicles.
With the termination of Project Blue Book , the Air Force
regulation establishing and controlling the program for invest­
igating and analyzing UFOs was rescinded.
All documentation
regarding the former Blue Book investigation has been per­
manently transferred to the Modern Military Branch, National
Archives and Records Service, 8th and Pennsylvania Avenue,
Washington, D.C. 20408, and is available for public review
and analysis.
Attached for your information is the Project Blue Book
sighting summary for the period 1947-1969.
Also included is
a listing of UFO-related materials currently available.
Since the termination of Project Blue Book, no evidence
has been presented to indicate that further investigation of
UFOs by the Air Force is warranted.
In view of the consider­
able Air Force commitment of resources in the past, and the
extreme pressure on Air Force funds at this time, there is
no likelihood of renewed Air Force involvement in this area.
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