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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
The Mariana UFO Film
August 15, 1950 · Legion Park, Great Falls, Montana
United States
UAP · Disc / saucer · 63 sources · 3 photos
55Partially documented
The Necedah Apparitions: Mary Ann Van Hoof and the Assumption Day Crowd
August 15, 1950 · Van Hoof farm, Necedah, Juneau County, Wisconsin
United States
Paranormal · Being / humanoid · 25 sources
32Partially 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
The Oskar Linke Landing at Haselbach
June 17, 1950 · Near Haselbach, by Gleimershausen, Thuringia (Soviet Zone)
Germany
UAP · Disc / saucer · 45 sources
38Partially 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)
United Kingdom
UAP · Disc / saucer · 8 sources
42Partially documented
Capt. Willis T. Sperry and the American Airlines DC-6 sighting near Mount Vernon, Virginia
May 29, 1950 · About seven miles west of Mount Vernon, Fairfax County, Virginia, after departure from Washington National Airport
United States
UAP · Cigar · 13 sources
23Thinly documented
Seymour Hess sighting at Lowell Observatory, Flagstaff, 1950
May 20, 1950 · Lowell Observatory, Mars Hill, Flagstaff, Coconino County, Arizona
United States
UAP · Sphere · 15 sources
21Thinly 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
Radar-Visual Sighting Over Dayton and Wright-Patterson AFB (ATIC)
March 8, 1950 · Dayton Municipal Airport, Vandalia, and Wright-Patterson AFB, Ohio
United States
UAP · Sphere · 12 sources
50Partially documented
Tubby, the Toothless Sea Monster: the Old Hairy carcass of Delake, Oregon
March 4, 1950 · Ocean beach at Delake (now Lincoln City), Lincoln County, Oregon
United States
Cryptid · Creature · 14 sources
24Thinly 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
The Paget Silver Sphere, Bermuda 1949
June 20, 1949 · South Shore, Paget Parish, Bermuda
Bermuda
UAP · Sphere · 6 sources
21Thinly 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 Charles B. Moore Theodolite Sighting, Arrey, New Mexico
April 24, 1949 · Launch site about 3 miles north of Arrey, Sierra County, New Mexico
United States
UAP · Egg · 26 sources
35Partially 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 "Two Pullman Cars" Object of Cortez Road: Captain Sames of Eglin AFB
January 27, 1949 · Cortez Road between Bradenton and Cortez, Manatee County, Florida
United States
UAP · Cigar · 11 sources
18Thinly documented
Louis Staub's Phantom Kangaroo, Grove City, Ohio (1949)
January 1949 · Highway about 2 miles south of Grove City, Franklin County, Ohio
United States
Cryptid · Creature · 13 sources
14Thinly documented
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …A/C #21 - EJA810 Time: 2350z Altitude: FL400 flying west reported a balloon @ approx. FL470 traveling southbound.
  • U.S. Department of War· 144 pages· 108 pages mention it
    • p. 55 …Slip at times appeared single and at times gave appearance of 2 aircraft in vicinity 25. Summary of Incident: (over…
    • p. 58 …At that time Kunsman thought they were seagulls. Thought there were from 10 to 20. At no time did Kunsman…
  • FBI via The Black Vault· 2018-11· 56 pages· 7 pages mention it
    • p. 29 …Date/Time: Accepted By: Printed Name: Reason: Date/Time: Accepted By: Printed Name: Reason: Date/Time: Accepted By: Printed Name…
    • p. 33 …Date/Time: Accepted By: Printed Name: Reason: Date/Time: Accepted By: Printed Name: Reason: Date/Time: Accepted By: Printed Name…
  • U.S. Department of War· 209 pages· 141 pages mention it
    • p. 54 …Time 1200 noon first time later at 11:15 approximately 3. Location Portland, Oregon 4. Name of observer Richard Rankin…
    • p. 55 …At this time the objects reappeared going from North to South, although this time there were only seven of the…
  • Department of the Navy FOIA· 2023-01· 90 pages· 72 pages mention it
    • p. 44 …out of (b) (1) for (b) (1) Time: (b) (1) Altitude at approx. (b) (1) heading (b) (1) degress, (b…
    • p. 72 …Date (mm/dd/yy) Time of detection (hh:mm:ss Z) Day/Night Side No. Buno Mission Description (CAS, BFM…
  • U.S. Department of War· 253 pages· 165 pages mention it
    • p. 68 …Number of objects 10 first time 7 second time 9. Distance of object from observer Not stated 10. Time in…
    • p. 69 …At this time the objects reappeared going from North to South, although this time there were only seven of the…

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