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Keflavík Airfield Ten White Objects Sighting
May 4, 1955 · Keflavík Airfield, Reykjanes peninsula, southwest Iceland
Iceland
UAP · Formation · 14 sources
21Thinly documented
The Falling Polished Sphere at NAS Miramar (Cmdr. J. L. Ingersoll), 1955
February 2, 1955 · East end of the main runway, Naval Air Station Miramar, San Diego County, California
United States
UAP · Sphere · 15 sources
27Thinly documented
Tananarive mass sighting and blackout
August 16, 1954 · Avenue de la Libération, Tananarive (Antananarivo)
Madagascar
UAP · Cigar · 27 sources
33Partially documented
The BOAC 'Flying Jellyfish': Captain James Howard and the Stratocruiser Centaurus
June 29, 1954 · Near the Quebec-Labrador border, about 150 nautical miles southwest of Goose Bay, Labrador
Canada
UAP · Formation · 16 sources
30Partially documented
TWA Constellation and Boston tower white-disc sighting (Captain Charles Kratovil)
June 1, 1954 · About 10 miles north of Boston, Massachusetts (in flight toward Idlewild, New York)
United States
UAP · Disc / saucer · 11 sources
28Thinly documented
The Possession of Clarita Villanueva: "The Thing" in Manila City Jail (1953)
May 1953 · Manila City Jail (Old Bilibid Prison), Oroquieta Road, Santa Cruz, Manila
Philippines
Paranormal · Being / humanoid · 19 sources
34Partially documented
F-94 and Ground Radar Sighting at Nemuro, Hokkaido, 1953
February 7, 1953 · Nemuro AF Detachment, Nemuro, Hokkaido (also listed as "Korean area" and "Okinawa")
Japan
UAP · Unknown · 12 sources
40Partially 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 Marignane Airport Landing (Gabriel Gachignard)
October 27, 1952 · Marignane airport (now Marseille Provence Airport), Bouches-du-Rhône
France
UAP · Cigar · 11 sources
14Thinly 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
William Squyres and the Propeller-Rimmed Disc, Pittsburg, Kansas
August 25, 1952 · Yale road, about 200 yards north of US Highway 160, northeast of Frontenac, near Pittsburg, Crawford County, Kansas
United States
UAP · Disc / saucer · 9 sources
24Thinly documented
Haneda AFB radar-visual sighting and F-94 intercept
August 5, 1952 · Haneda Air Force Base, Tokyo (now Tokyo International Airport), Japan
Japan
UAP · Disc / saucer · 24 sources
61Well documented
Pottstown F-94 Starfire Encounter
July 23, 1952 · Pottstown, Montgomery County, Pennsylvania
United States
UAP · Other · 15 sources
26Thinly 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
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
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
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
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

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