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Stories1,449 · page 53

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
Igopogo: The Georgina Island Group Sighting, Lake Simcoe (1952)
1952 · Near Georgina Island, southern Lake Simcoe, Ontario
Canada
Cryptid · Creature · 18 sources
22Thinly documented
The Chowerup Lands Inspector Sighting
November 28, 1951 · Chowerup, Shire of Boyup Brook, about 60 km east of Bridgetown, Western Australia
Australia
UAP · Other · 9 sources
21Thinly documented
The Invasion of Gibbstown: Jersey Devil sightings in Gibbstown, New Jersey
November 22, 1951 · Gibbstown, Greenwich Township, Gloucester County, New Jersey
United States
Cryptid · Creature · 14 sources
26Thinly documented
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
Shipton and Ward Yeti Footprints, Menlung Glacier, 1951
November 8, 1951 · Menlung Glacier, below the Menlung La, Gauri Sankar group, Nepal-Tibet border
Nepal
Cryptid · Creature · 49 sources · 5 photos
49Partially documented
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
The Puerto Maldonado "Smoking Saucer" Photograph
July 19, 1951 · Puerto Maldonado and Iberia, Madre de Dios, Peru
Peru
UAP · Cigar · 14 sources · 2 photos
34Partially documented
Lachlan Stuart's Three Humps Photograph, Loch Ness
July 14, 1951 · Whitefield croft, south-east shore of Loch Ness, opposite Urquhart Castle, Scotland
United Kingdom
Cryptid · Creature · 17 sources · 3 photos
30Partially documented
The New Delhi Flying Club Cigar
March 15, 1951 · Delhi Flying Club hangar, Safdarjung Aerodrome, New Delhi
India
UAP · Cigar · 17 sources
32Partially documented
The Mount Kilimanjaro Sighting from an East African Airways Lodestar
February 19, 1951 · Above Mount Kilimanjaro, Tanganyika (now Tanzania), seen from a Lodestar over southern Kenya
Tanzania
UAP · Cigar · 14 sources
29Thinly documented
The Bethune Encounter: US Navy Flight 125 off Newfoundland
February 10, 1951 · North Atlantic, about 200 miles northeast of Argentia, Newfoundland (the 'Gander' case)
Canada
UAP · Disc / saucer · 24 sources
33Partially 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
Pope Pius XII sees the 'miracle of the sun' in the Vatican Gardens (1950)
October 30, 1950 · Statue of Our Lady of Lourdes (Lourdes Grotto), Vatican Gardens
Vatican City
Paranormal · Orb / light · 26 sources
14Thinly documented
The Oak Ridge Atomic Plant Radar-Visual Flap
October 1950 · Oak Ridge and Knoxville, Tennessee
United States
UAP · Other · 23 sources
58Partially documented
The Mariana UFO Film
August 15, 1950 · Legion Park, Great Falls, Montana
United States
UAP · Disc / saucer · 63 sources · 3 photos
55Partially documented
Flight Lieutenant Stan Hubbard's Farnborough discs
August 14, 1950 · Royal Aircraft Establishment airfield, Farnborough, Hampshire
United Kingdom
UAP · Disc / saucer · 15 sources
28Thinly documented

Names138 · see all

Documents945 · see all

  • Project Blue Book Special Report (second copy) Report
    Internet Archive· 309 pages· 96 pages mention it
    • p. 105 …Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 132 Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups…
    • p. 107 …Evaluation of All Sightings by Duration of Sighting, 1948 154 Table A84. Evaluation of All Sightings by Duration of Sighting…
  • Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects Analysis
    United States Air Force, Air Technical Intelligence Center· 1955-05-05· 309 pages· 96 pages mention it
    • p. 105 …Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 132 Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups…
    • p. 107 …Evaluation of All Sightings by Duration of Sighting, 1948 154 Table A84. Evaluation of All Sightings by Duration of Sighting…
  • (Analysis of Reports of Unidentified Aerial Objects) FOIA release
    Central Intelligence Agency· 2005-07-12· 312 pages· 140 pages mention it
    • p. 107 …Evaluation of Unit Sightings by Sighting Reliability Groups, 1948. 132 Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups…
    • p. 108 …Evaluation of All Sightings for 1952 by Sighting Reliability Groups, Civilian Observers 139 Table A60. Reported Colors of Objects Sighted…
  • CIA-UAP-015, Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects) Case file
    Central Intelligence Agency· 312 pages· 95 pages mention it
    • p. 107 …Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 . Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups, 1949…
    • p. 109 …Evaluation of All Sightings by Duration of Sighting, 1948 Table A84. Evaluation of All Sightings by Duration of Sighting, 1949…
  • Office of the Secretary of Defense: 25_Sky_View_Final_Draft Official release
    Department of Defense. Office of the Secretary of Defense.· 2023· 16 pages· 14 pages mention it
    • p. 5 …A timeline of reported sightings for the study period is provided in Figure 1, with a marked peak in sightings…
    • p. 10 …increasing sightings); values below 1 indicate a negative relationship (decreasing sightings). For example, the coefficient for Mean Light Pollution is…
  • Fact Sheet Air Force UFO Report FOIA release
    Central Intelligence Agency· 2001-04-30· 5 pages· 5 pages mention it
    • p. 1 # NEWS RELEASE PLEASE NOTE DATE IMMEDIATE RELEASE ## FACT SHEET AIR FORCE UFO REPORT A total of 173 sightings of unidentified…
    • p. 4 …first, there is no evidence that unidentified sightings were inimical or hostile; second, there is no evidence that unidentified sightings…

All 945 documents →

Videos351 · see all

Released footageFBI-UAP-PR0042025
“Northeastern Orb Sighting,” 2025
PURSUE release
Released recordingNASA-UAP-D003A1965-12-05
Gemini 7 Audio Excerpt, 1965
PURSUE release
Released footageDOW-UAP-PR0752021
"09JUN2021 [Platform] observed UAP in the ECS"
PURSUE release
Released recordingDOW-UAP-PR1601952-03-26
Presentation by Captain Edward J. Ruppelt, 1952
PURSUE release
Video1566
1561 Sky Battle: The Best of History's UFO Sightings, Ep 121
From The 1566 Celestial Phenomenon over Basel (the Basel Broadsheet)
Video1869
Bigfoot Sightings in Western New York: Steuben County
From The Wild Man of Woodhull: 200 Men Hunt a Shrieking Figure Through the Steuben County Woods
Video1871
The North Queensland Striped Tiger Cat or Marsupial Tiger sightings in the early 1900s
From The Sheridan Boy and the Striped Queensland Tiger, Cardwell (1871)
Video1896
'Mystery Airship' Sightings, 1896-1897
From Mystery Airship Wave of 1896 and 1897

All 351 videos →