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In the declassified files

Cases with released government documents behind them.

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Stories40

Foo Fighters of World War II
November 1944 · Rhine valley north of Strasbourg, Alsace, with reports across the European and Pacific theatres
UAP · Orb / light · 76 sources
50Partially documented
The Ghost Rockets (Spökraketer), Scandinavia, 1946
July 19, 1946 · Lake Kölmjärv, Överkalix, Norrbotten, Sweden (wave across Sweden, Finland, Norway and Denmark)
UAP · Cigar · 54 sources · 3 photos
86Well documented
The Maury Island Incident
June 21, 1947 · East Passage of Puget Sound, off Maury Island, King County, Washington
UAP · Other · 77 sources
35Partially documented
The Kenneth Arnold Sighting
June 24, 1947 · Near Mount Rainier and Mineral, Washington
UAP · Other · 67 sources
35Partially documented
The 1947 Flying Disc Craze: America's First Flying Saucer Wave
c. 1947 · United States (nationwide, heaviest in the Pacific states: California, Washington and Oregon)
UAP · Disc / saucer · 31 sources
55Partially documented
Rhodes UFO photographs ("shoe-heel" photos), Phoenix, Arizona, 1947
July 7, 1947 · Phoenix, Arizona
UAP · Disc / saucer · 33 sources · 1 photos
41Partially documented
Roswell Incident
July 8, 1947 · Foster ranch, about 30 miles south of Corona, New Mexico (announced from Roswell Army Air Field)
UAP · Disc / saucer · 80 sources · 6 photos
64Well documented
Muroc Army Air Field disc sightings
July 8, 1947 · Muroc Army Air Field and Rogers Dry Lake, Kern County, California
UAP · Disc / saucer · 25 sources
40Partially documented
Snake River Canyon Disc: The A.C. Urie Sighting
August 13, 1947 · Auger Falls Trout Farm, Snake River Canyon, near Twin Falls, Idaho
UAP · Disc / saucer · 18 sources
23Thinly documented
The Mantell UFO Incident
January 7, 1948 · Godman Field, Fort Knox, to the Phillips farm near Franklin, Simpson County, Kentucky
UAP · Other · 100 sources · 1 photos
50Partially documented
The Aztec Crashed Saucer Hoax
March 1948 · Hart Canyon mesa, about 12 miles northeast of Aztec, San Juan County, New Mexico
UAP · Disc / saucer · 74 sources
29Thinly documented
The Chiles-Whitted Encounter
July 24, 1948 · 20 miles southwest of Montgomery, Alabama (near Hayneville, Lowndes County)
UAP · Cigar · 66 sources
41Partially documented
The Gorman Dogfight
October 1, 1948 · Hector Airport, Fargo, North Dakota
UAP · Orb / light · 58 sources
47Partially documented
The Green Fireballs over New Mexico
December 5, 1948 · Los Alamos, Sandia Base and Kirtland AFB (Albuquerque), northern and eastern New Mexico, and West Texas
UAP · Orb / light · 61 sources
52Partially documented
The Charles B. Moore Theodolite Sighting, Arrey, New Mexico
April 24, 1949 · Launch site about 3 miles north of Arrey, Sierra County, New Mexico
UAP · Egg · 26 sources
35Partially documented
Rogue River Disc Sighting, Gold Beach, Oregon
May 24, 1949 · Rogue River near Elephant Rock, about 2 to 2.5 miles upstream of the mouth, Gold Beach, Curry County, Oregon
UAP · Disc / saucer · 25 sources
36Partially documented
The Farmington Saucer Armada
March 17, 1950 · Main Street, Farmington, San Juan County, New Mexico
UAP · Disc / saucer · 40 sources
35Partially documented
The RAF Tangmere Meteor Flying Saucer and the Wartling Radar Return
June 1, 1950 · Portsmouth area, Hampshire (pilot from RAF Tangmere, radar at RAF Wartling)
UAP · Disc / saucer · 8 sources
42Partially documented
The Oskar Linke Landing at Haselbach
June 17, 1950 · Near Haselbach, by Gleimershausen, Thuringia (Soviet Zone)
UAP · Disc / saucer · 31 sources
37Partially documented
Daniel Fry's White Sands Saucer Ride
July 4, 1950 · White Sands Proving Ground, near Las Cruces, New Mexico
Alien · Disc / saucer · 32 sources
22Thinly documented
The Mariana UFO Film
August 15, 1950 · Legion Park, Great Falls, Montana
UAP · Disc / saucer · 63 sources · 3 photos
55Partially documented
The Oak Ridge Atomic Plant Radar-Visual Flap
October 1950 · Oak Ridge and Knoxville, Tennessee
UAP · Other · 23 sources
58Partially documented
The Sioux City Mystery Plane
January 20, 1951 · Sioux City municipal airport (now Sioux Gateway Airport), Sioux City, Iowa
UAP · Other · 18 sources
38Partially 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)
UAP · Disc / saucer · 24 sources
33Partially documented
The New Delhi Flying Club Cigar
March 15, 1951 · Delhi Flying Club hangar, Safdarjung Aerodrome, New Delhi
UAP · Cigar · 17 sources
32Partially documented
The Lubbock Lights
August 25, 1951 · Lubbock, Texas
UAP · Formation · 38 sources · 4 photos
50Partially documented
Fort Monmouth radar and T-33 sightings
September 10, 1951 · Fort Monmouth, Point Pleasant and Sandy Hook, New Jersey
UAP · Disc / saucer · 20 sources
49Partially 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
UAP · Disc / saucer · 24 sources
30Partially documented
The Barra da Tijuca Flying Disc Photographs
May 7, 1952 · Barra da Tijuca, Rio de Janeiro
UAP · Disc / saucer · 29 sources · 18 photos
41Partially documented
The Tremonton UFO Film (The Newhouse Film)
July 2, 1952 · U.S. Highway 30S, about 7 miles from Tremonton, Box Elder County, Utah
UAP · Disc / saucer · 50 sources · 6 photos
47Partially documented
Salem Coast Guard Air Station UFO Photograph
July 16, 1952 · U.S. Coast Guard Air Station Salem, Winter Island, Salem, Massachusetts
UAP · Formation · 22 sources · 3 photos
41Partially documented
The 1952 Washington, D.C. UFO Flap
July 19, 1952 · Washington National Airport and Andrews AFB, Washington, D.C. area
UAP · Orb / light · 97 sources
61Well documented
The Passaic UFO Photographs (George J. Stock)
July 31, 1952 · 221 Brooks Avenue, Passaic, New Jersey
UAP · Disc / saucer · 24 sources · 2 photos
37Partially documented
Bellefontaine Radar-Visual and Gun-Camera Intercept
August 1, 1952 · Bellefontaine Air Force Station (Campbell Hill) and the Dayton area, Ohio
UAP · Sphere · 19 sources
54Partially documented
Haneda AFB radar-visual sighting and F-94 intercept
August 5, 1952 · Haneda Air Force Base, Tokyo (now Tokyo International Airport), Japan
UAP · Disc / saucer · 24 sources
61Well documented
The Florida Scoutmaster Case: Sonny DesVergers and the Palmetto Scrub Encounter
August 19, 1952 · Military Trail, inland from West Palm Beach, Palm Beach County, Florida
UAP · Disc / saucer · 24 sources
36Partially documented
The Flatwoods Monster
September 12, 1952 · G. Bailey Fisher farm, Flatwoods, Braxton County, West Virginia
Cryptid · Creature · 51 sources
43Partially documented
The RAF Topcliffe "Perfect Flying Saucer" During Exercise Mainbrace
September 19, 1952 · RAF Topcliffe, near Thirsk, North Yorkshire (approach to RAF Dishforth)
UAP · Disc / saucer · 20 sources
33Partially documented
George Adamski's Desert Center Contact
November 20, 1952 · Colorado Desert, about 10 miles from Desert Center on the road toward Parker, Arizona, Riverside County, California
Alien · Being / humanoid · 46 sources
39Partially documented
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)
UAP · Disc / saucer · 33 sources · 1 photos
46Partially documented