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Pro early
Ángel Armando Pacheco's ucumar sighting at Pasteadero Chico, Metán, Salta
April 12, 2022 · Finca near the paraje Pasteadero Chico, northeast of San José de Metán, Salta
Argentina
Cryptid · Creature · 25 sources
14Thinly documented
Pro early
The Hammond and Whiting Police Chase of a Beeping Sky Object
November 10, 1957 · Hammond and Whiting, Lake County, Indiana
United States
UAP · Unknown · 11 sources
18Thinly documented
The Olden Moore Landing and Radiation Case, Montville, Ohio
November 6, 1957 · Field west of Montville, Geauga County, Ohio
United States
UAP · Disc / saucer · 16 sources
28Thinly documented
The Everittstown "We Just Want Your Dog" Encounter (John Trasco)
November 6, 1957 · Everittstown, Alexandria Township, Hunterdon County, New Jersey
United States
UAP · Being / humanoid · 16 sources
13Thinly documented
Dante Landed-Craft Sighting (Everett Clark), Knox County, Tennessee
November 6, 1957 · Gilbert Sterchi's pasture, Dante School Road, Dante, Knox County, Tennessee
United States
UAP · Egg · 14 sources · 3 photos
22Thinly documented
The Rene Gilham Light Beam Burn Case, Merom, Indiana
November 6, 1957 · Outskirts of Merom, Sullivan County, Indiana
United States
UAP · Disc / saucer · 15 sources
23Thinly documented
Pro early
The Danville State Trooper Chase and Radio Failure (1957)
November 6, 1957 · Danville, Vermilion County, Illinois (north on Route 1, then west to Oakwood and south on Sugar Creek Road toward Fairmount)
United States
UAP · Orb / light · 12 sources
25Thinly documented
Reinhold Schmidt and the Kearney Incident
November 5, 1957 · Field near the Platte River, near Kearney, Buffalo County, Nebraska
United States
UAP · Being / humanoid · 32 sources
28Thinly documented
USCGC Sebago radar-visual sighting, Gulf of Mexico
November 5, 1957 · Gulf of Mexico, about 200 miles south of the Mississippi delta
International waters
UAP · Unknown · 11 sources
41Partially documented
Fort Itaipu incident: the burned sentries
November 4, 1957 · Fortaleza de Itaipu, Ponta de Itaipu, Praia Grande, São Paulo
Brazil
UAP · Disc / saucer · 25 sources
18Thinly documented
Pro early
White Sands Proving Ground Army patrol sightings near Trinity Site (1957)
November 3, 1957 · Trinity Site bunkers, northern range of White Sands Proving Ground, near Stallion Site, New Mexico
United States
UAP · Egg · 16 sources
29Thinly documented
The Levelland UFO Case
November 2, 1957 · Levelland, Hockley County, Texas
United States
UAP · Egg · 56 sources
44Partially documented
The Silpho Moor Flying Saucer, Scarborough 1957
c. 1957 · Silpho Moor, near Reasty Bank and Broxa Forest, north-west of Scarborough, North Yorkshire, England
United Kingdom
UAP · Disc / saucer · 22 sources · 1 photos
40Partially documented
Pro early
The Nawaca Fishermen Encounter (Nabouwalu, Fiji)
October 8, 1957 · Coastal waters between Nabouwalu and Nawaca, Bua Province, Vanua Levu
Fiji
UAP · Disc / saucer · 11 sources
19Thinly documented
  • Central Intelligence Agency· 1958-11-04· 3 pages· 2 pages mention it
    • p. 1 …Source did not photograph the object, but he is sure that the object was identical with Sputnik III. Subsequent observations…
    • p. 2 …Source did not photograph the object, but he is sure that the object was identical with Sputnik III. Subsequent observations…
  • Central Intelligence Agency· 1958-12-11· 2 pages· 1 page mentions it
    • p. 1 …Source did not photograph the object, but he is sure that the object was identical with Sputnik III. Subsequent observations…
  • Central Intelligence Agency· 2014-06-12· 1 pages· 1 page mentions it
    • p. 1 # ADMIRAL HILLENKOETTER THINKS SO Will Sputniks Solve Flying Saucer Puzzle? ## By DOUGLAS LARSEN Man's invasion of space should produce…
  • Central Intelligence Agency· 1959-03-01· 2 pages· 2 pages mention it
    • p. 1 …In size and appearance, it could be compared to the Soviet sputniks. About five minutes later, object number two appeared…
    • p. 2 …In size and appearance, it could be compared to the Soviet sputniks. About five minutes later, object number two appeared…
  • Central Intelligence Agency· 1959-02-01· 2 pages· 2 pages mention it
    • p. 1 …In size and appearance, it could be compared to the Soviet sputniks. About five minutes later, object number two appeared…
    • p. 2 …In size and appearance, it could be compared to the Soviet sputniks. About five minutes later, object number two appeared…
  • Central Intelligence Agency· 2005-06-21· 8 pages· 2 pages mention it
    • p. 1 …On 4 October 1957 a Soviet artificial earth sputnik was launched into orbit. Menzel called this "the first real flying…
    • p. 2 …Apart from scientific instrumentation, the sputnik has a radio system for exact measurement of orbital elements and a radiotelemetric system…

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