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Bellefontaine Radar-Visual and Gun-Camera Intercept
August 1, 1952 · Bellefontaine Air Force Station (Campbell Hill) and the Dayton area, Ohio
United States
UAP · Sphere · 19 sources
54Partially documented
The Passaic UFO Photographs (George J. Stock)
July 31, 1952 · 221 Brooks Avenue, Passaic, New Jersey
United States
UAP · Disc / saucer · 24 sources · 2 photos
37Partially documented
Pro early
Pottstown F-94 Starfire Encounter
July 23, 1952 · Pottstown, Montgomery County, Pennsylvania
United States
UAP · Other · 15 sources
26Thinly documented
The 1952 Washington, D.C. UFO Flap
July 19, 1952 · Washington National Airport and Andrews AFB, Washington, D.C. area
United States
UAP · Orb / light · 97 sources
61Well documented
Salem Coast Guard Air Station UFO Photograph
July 16, 1952 · U.S. Coast Guard Air Station Salem, Winter Island, Salem, Massachusetts
United States
UAP · Formation · 22 sources · 3 photos
41Partially documented
Paul R. Hill's Hampton Roads sighting
July 16, 1952 · Hampton waterfront, looking south over Hampton Roads, Virginia
United States
UAP · Sphere · 20 sources
26Thinly documented
The Nash-Fortenberry Sighting over Chesapeake Bay
July 14, 1952 · Over Chesapeake Bay, near Newport News, Virginia
United States
UAP · Disc / saucer · 23 sources
25Thinly documented
The Tremonton UFO Film (The Newhouse Film)
July 2, 1952 · U.S. Highway 30S, about 7 miles from Tremonton, Box Elder County, Utah
United States
UAP · Disc / saucer · 50 sources · 6 photos
47Partially documented
Truman Bethurum and Captain Aura Rhanes of Clarion
July 1952 · Mormon Mesa, Moapa Valley area, Clark County, Nevada
United States
UAP · Being / humanoid · 28 sources
17Thinly documented
Goose Bay AFB radar-visual sighting: "target suddenly enlarges"
June 19, 1952 · Goose Air Base (now CFB Goose Bay), Happy Valley-Goose Bay, Labrador
Canada
UAP · Unknown · 25 sources
44Partially documented
Pro early
Savannah River Plant Discs over the 400 Area, Ellenton, South Carolina
May 10, 1952 · 400 Area (D Area heavy-water plant), Savannah River Plant, near Ellenton, South Carolina
United States
UAP · Disc / saucer · 21 sources
28Thinly documented
Pro early
Davis-Monthan AFB: Two Discs Pace a B-36 (The Case of the Missing Report)
May 1, 1952 · Davis-Monthan AFB, Tucson, Pima County, Arizona
United States
UAP · Disc / saucer · 19 sources
32Partially documented
Project Second Storey, Canada's Interdepartmental UFO Committee
April 22, 1952 · Ottawa, Ontario
Canada
UAP · Disc / saucer · 21 sources
40Partially documented
Wonsan-Sunchon B-29 "Orange Globe" Sightings
January 29, 1952 · Wonsan and Sunchon, North Korea
North Korea
UAP · Sphere · 23 sources
29Thinly documented
Flying Saucers over the Belgian Congo Uranium Mines (Elisabethville, 1952)
c. 1952 · Elisabethville district (now Lubumbashi), over the uranium mines of southern Katanga, Belgian Congo
Democratic Republic of the Congo
UAP · Disc / saucer · 24 sources
30Partially documented
The Spitsbergen Flying Saucer Crash
1952 · Hinlopen Strait, Nordaustlandet, Svalbard
Norway
UAP · Disc / saucer · 22 sources
25Thinly documented
Pro early
Capital Airlines Flight 610 and the lighted object near Andrews AFB (Blue Book Case 1011)
November 18, 1951 · Near Andrews Air Force Base, Prince George's County, Maryland
United States
UAP · Unknown · 11 sources
27Thinly documented
Pro early
The Kaliszewski Balloon-Crew Sightings
October 10, 1951 · About 10 miles east of St. Croix Falls, Wisconsin, and north of Minneapolis, Minnesota
United States
UAP · Cigar · 24 sources
37Partially documented
Fort Monmouth radar and T-33 sightings
September 10, 1951 · Fort Monmouth, Point Pleasant and Sandy Hook, New Jersey
United States
UAP · Disc / saucer · 20 sources
49Partially documented
The Lubbock Lights
August 25, 1951 · Lubbock, Texas
United States
UAP · Formation · 38 sources · 4 photos
50Partially documented
  • National Security Agency· 2 pages· 2 pages mention it
    • p. 1 FACT SHEET USAF Fact Sheet 95-03 Unidentified Flying Objects and Air Force Project Blue Book From 1947 to 1969…
    • p. 2 News media requiring Project Blue Book files should contact the National Archives Public Affairs Office, (202)-501:.5525. Public queries…
  • DoD FOIA Reading Room· 1969-12-17· 2 pages· 2 pages mention it
    • p. 1 IMMEDIATE RELEASE December 17, 1969 AIR FORCE TO TERMINATE PROJECT "BLUE BOOK" NO. 1077-69 OXford 7-5131 (Info.) OXford…
    • p. 2 …As a result of investigating UFO reports since 1948, the conclusions of Project Blue Book are: (1) no UFO reported…
  • Federal Bureau of Investigation· 13 pages· 6 pages mention it
    • p. 3 …withthe termination of Project Blue Book, the Air Force regulation establishing and controlling the program for invest- igating and analyzing…
    • p. 8 …Again, the new Project Blue Book is acivilian continuation ofthe original Project Blue Book, which didclose in 1969. Here, twenty…
  • · 5 pages· 2 pages mention it
    • p. 3 …The 1947 to 1969 USAF investigations studied UFO's under Project Blue Book. -MORE- REPRODUCED AT GOVT. EXPENSE
    • p. 4 …Of the total of 12,618 sightings reported to Project Blue Book, 701 remain "unidentified." The decision to discontinue UFO…
  • afUFOsandUAPsf1 FOIA release
    Office of the Secretary of Defense· 3 pages· 2 pages mention it
    • p. 1 …Later the name was changed to Project Grudge, and in 1953 it became Project Blue Book. Between 1948 and 1969…
    • p. 2 .. On Dece~~e~ 17, 1969 the Secretary of the Air Force announced the termination of Project Blue Book. ThP decision…
  • 2d af 1 FOIA release
    Office of the Secretary of Defense· 3 pages· 2 pages mention it
    • p. 1 …Later the name was changed ~o Project Grudge, and ·in 1953, it became Project Blue Book. Between 1948 and 1969…
    • p. 2 On December 17, 1969 the Secretary of the Air Force announced the termination of Project Blue Book. The decision to…

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