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The Robertson Panel: The CIA's Secret UFO Review
January 14, 1953 · Washington, D.C. (exact building unresolved; CIA headquarters and the Pentagon both claimed)
United States
UAP · Disc / saucer · 33 sources · 1 photos
46Partially documented
The F-94 Interceptor Encounter near Hanford (Odessa Case)
December 10, 1952 · Odessa, Washington (popularly placed near the Hanford plant)
United States
UAP · Sphere · 20 sources
49Partially documented
The Angel Hair Sightings at Oloron-Sainte-Marie and Gaillac
October 17, 1952 · Oloron-Sainte-Marie, Béarn (Pyrénées-Atlantiques), and Gaillac, Tarn
France
UAP · Cigar · 15 sources
28Thinly documented
Yaak Air Force Station radar-visual sightings
September 1, 1952 · Yaak Air Force Station, Hensley Hill, Lincoln County, Montana
United States
UAP · Cigar · 12 sources
40Partially 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
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
The Lubbock Lights
August 25, 1951 · Lubbock, Texas
United States
UAP · Formation · 38 sources · 4 photos
50Partially documented
The Sioux City Mystery Plane
January 20, 1951 · Sioux City municipal airport (now Sioux Gateway Airport), Sioux City, Iowa
United States
UAP · Other · 18 sources
38Partially documented
TWA Flight 117 "red wheel" sighting, Goshen, Indiana
April 27, 1950 · Over Goshen toward South Bend, Indiana
United States
UAP · Disc / saucer · 10 sources
27Thinly documented
The Farmington Saucer Armada
March 17, 1950 · Main Street, Farmington, San Juan County, New Mexico
United States
UAP · Disc / saucer · 40 sources
35Partially documented
Kodiak Naval Radar-Visual Encounters: P2V-3 Patrol Plane and USS Tillamook
January 22, 1950 · Naval Air Station Kodiak, Kodiak, Alaska
United States
UAP · Other · 18 sources
51Partially documented
Mount Palomar Observatory Sightings and Cosmic-Ray Counter Anomalies
October 14, 1949 · Palomar Observatory, Palomar Mountain, San Diego County, California
United States
UAP · Formation · 18 sources
36Partially documented
Two flat silvery discs over Tucson seen by M/Sgt. Troy Putnam (Blue Book Incident 337)
May 9, 1949 · Tucson, Pima County, Arizona
United States
UAP · Disc / saucer · 11 sources
29Thinly documented
The Camp Hood "Balls of Fire": Lights Over the Killeen Base Atomic Bomb Site
March 1949 · Killeen Base (Site Baker), beside Camp Hood, Bell County, Texas
United States
UAP · Formation · 23 sources
33Partially documented
The Twining Memo: AMC Opinion Concerning 'Flying Discs'
September 23, 1947 · Headquarters, Air Materiel Command, Wright Field, Dayton, Ohio
United States
UAP · Disc / saucer · 27 sources
28Thinly documented
Twin Falls saucer hoax
July 11, 1947 · T. H. Thompson residence, Twin Falls, Twin Falls County, Idaho
United States
UAP · Disc / saucer · 17 sources · 1 photos
28Thinly documented
United Air Lines Flight 105 Sighting, Emmett, Idaho
July 4, 1947 · Over Emmett, Idaho, northwest of Boise
United States
UAP · Disc / saucer · 18 sources
23Thinly documented
  • Central Intelligence Agency· 1952-09-02· 1 pages· 1 page mentions it
    • p. 1 CENTRAL INTELLIGENCE AGENCY INFORMATION REPORT 4. "On July 24 at about 6:30 a big formation of 'Flying Saucers' was…
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …At approximately 0543Z, they reported to the controller that the formation appeared to fly toward them, then turned around. UFO…
  • Central Intelligence Agency· 1952-08-02· 2 pages· 1 page mentions it
    • p. 2 …4. "On July 24 at about 6:30 a big formation of 'Flying Saucers' was seen above Arnhem. Mrs and…
  • Central Intelligence Agency· 1957-03-01· 2 pages· 2 pages mention it
    • p. 1 …My friends related that hat appeared to be aircraft, flying in formation at an extremely high rate of speed at…
    • p. 2 …2 My friends related that hat appeared to be aircraft, flying in formation at an extremely high rate of speed…
  • U.S. Department of War· 2020-08-27· 7 pages· 4 pages mention it
    • p. 6 …FORMATION OF UNK FLYING OBJECTS • Method of Observation:~SENSOR GENTEXTIOBSERVATION • Gentext: (St/REL) FROM 1527Z TO 1529Z,~OBSERVED A FORMATION…
    • p. 7 …AIRCREW WAS UNABLE TO GAIN PIO AGAIN ON THIS FORMATION WEATHER • Weather: LIGHT CLOUD COVERAGE PREVENTED THE C I NTINOUS…
  • Federal Bureau of Investigation· 2025· 3 pages· 2 pages mention it
    • p. 2 …The orbs flared up one at a time in a horizontal formation and after approximately ten - fifteen seconds, flared down…
    • p. 3 …The orbs flared up one at a time in a horizontal formation and after approximately ten seconds, flared down ,in…

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