Within Brazil UFO Files
What Happened During Operation Saucer?
The Colares wave became a public emergency that prompted military observation without establishing an extraterrestrial cause.
On this page
- Why fear spread across riverside communities
- What Air Force teams recorded and collected
- Claims of beams, injuries, and possible explanations
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Introduction
Operation Saucer (Portuguese: Operação Prato) was the Brazilian Air Force’s investigation into an extraordinary wave of reports from the riverside communities of Colares and neighbouring areas of Pará in 1977. The operation is historically significant not because it proved an extraterrestrial explanation, but because it demonstrated that the Brazilian military considered the situation serious enough to deploy trained personnel, interview witnesses, collect photographs, map sightings and produce detailed intelligence reports. The surviving records confirm that an organised investigation took place and that local fear was genuine. They do not establish what the reported lights were, nor do they demonstrate that the alleged injuries resulted from advanced technology or non-human craft.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Within Brazil’s broader history of UFO reports, the Colares wave stands apart because it combined hundreds of civilian accounts, medical concerns, sustained military fieldwork and a substantial archive of declassified documents. It remains one of the country’s most studied UFO incidents precisely because official documentation exists alongside unresolved questions.
Why fear spread across the riverside communities
The events unfolded primarily between September and December 1977 in Colares and nearby settlements around Marajó Bay, including Vigia, Santo António do Tauá and Viseu. Residents described repeated appearances of bright lights and luminous objects, often after dark, travelling over rivers, forests and villages at apparently low altitude.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
What distinguished the Colares wave from many UFO sighting episodes was the widespread belief that some lights actively interacted with people. Witnesses claimed narrow beams descended from the objects and struck individuals, producing sensations of heat, temporary weakness, dizziness or small burns. The local nickname “Chupa-Chupa” (“sucker”) reflected the belief that the beams somehow drained blood or energy from victims, although this interpretation came from local folklore rather than laboratory evidence.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
As reports multiplied, everyday life changed noticeably:
- Many residents avoided leaving their homes after sunset.
- Families organised night watches and lit large fires.
- Fireworks were used in attempts to frighten away the lights.
- Some women and children temporarily left affected villages.
- Local authorities requested federal assistance as public anxiety increased.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Whether every reported incident represented the same phenomenon remains uncertain, but contemporary newspaper coverage and official records indicate that fear itself became a genuine public issue requiring a government response.
What the Air Force actually investigated
The First Regional Air Command (I COMAR) launched Operation Saucer after requests from local officials and growing public concern. Captain Uyrangê Bolívar Soares Nogueira de Hollanda Lima led much of the field investigation, supported by military personnel equipped for observation and documentation rather than combat.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Field observations and documentation
The mission involved systematic rather than casual observation. Surviving reports describe teams that:
- Interviewed witnesses individually.
- Recorded dates, locations and directions of movement.
- Produced sketches based on witness testimony.
- Used cameras and optical instruments during night watches.
- Logged weather and environmental conditions.
- Prepared maps showing concentrations of reported activity.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
The mission report includes numerous individual sighting entries with estimated altitude, colour, direction and duration. Some observations came from civilians, while others were recorded during military surveillance. The documents therefore establish that unusual luminous phenomena were repeatedly observed or reported, although they do not identify a definitive cause.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Photographs and film
Operation Saucer reportedly produced hundreds of photographs and many hours of motion-picture film. Only a fraction has entered the public domain, and much of the original visual material has never been publicly released or is unavailable for independent analysis. This limited access has contributed both to continuing public interest and to persistent speculation about what the military actually recorded.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Claims of beams, injuries and medical evidence
The most controversial aspect of the Colares wave concerns reports of physical injuries.
Residents described narrow beams of white or bluish light apparently directed at people outdoors or through windows. Alleged effects included redness, small skin lesions, temporary weakness, headaches and unusual fatigue. Some witnesses also reported puncture-like marks or hair loss. These claims became central to the Colares story because they went beyond simple observations of lights in the sky.[Now Declassified]nowdeclassified.comOpen source on nowdeclassified.com.
Medical personnel working locally, including physician Wellaide Cecim Carvalho, later stated that patients presented with burns or skin abnormalities that they regarded as unusual. Her recollections have frequently been cited in UFO literature. However, no comprehensive medical study established a unique injury pattern attributable to an unknown aerial phenomenon, and surviving clinical records are incomplete. Consequently, while medical testimony supports the fact that some residents sought treatment, it does not conclusively demonstrate what caused the reported injuries.[Now Declassified]nowdeclassified.comOpen source on nowdeclassified.com.
This distinction is important:
- Well supported: residents reported injuries and sought medical attention.
- Moderately supported: some medical professionals considered the lesions unusual.
- Not established: that unidentified aerial objects caused those injuries.
What the declassified records do—and do not—show
Brazil’s later release of Operation Saucer files fundamentally changed discussion of the case. The declassified archive demonstrates that:
- the investigation was genuine;
- military personnel spent weeks documenting reports;
- officials regarded the incidents as worthy of intelligence collection;
- reports included photographs, sketches and detailed observation logs.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
The same documents are equally notable for what they do not contain.
They do not conclude that extraterrestrial craft visited Colares. They do not identify recovered technology, confirm alien occupants or present laboratory evidence linking injuries to unknown energy sources. The reports consistently document observations while leaving their interpretation unresolved.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
This often creates confusion in popular retellings. The existence of classified military files is sometimes presented as proof of extraordinary claims, whereas the files themselves primarily demonstrate that Brazilian authorities investigated reports they could not immediately explain.
Possible explanations
No single explanation accounts for every reported event, and researchers continue to disagree about the balance between genuine observation and social amplification.
Several possibilities have been proposed.
Misidentified natural or atmospheric phenomena. Some luminous events may have involved astronomical objects, meteors, electrical phenomena or unusual atmospheric conditions viewed over rivers and forests. Such explanations can account for certain distant lights but struggle to explain the close-range encounters described by many witnesses.[Global UFO Archive]ufouap.netOpen source on ufouap.net.
Human activity. Boats, aircraft or other conventional sources of light may have contributed to some reports. However, investigators found that this did not satisfactorily explain every account recorded during the operation.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Psychological and social factors. Once the first incidents attracted publicity, expectation, rumour and fear may have encouraged additional reports or influenced witness interpretation. Historians of unusual events note that such feedback loops are common during prolonged public scares, even when an initial trigger is genuine. This does not require deliberate fabrication by witnesses.[Global UFO Archive]ufouap.netOpen source on ufouap.net.
Unknown phenomenon. Some researchers argue that the military’s inability to identify every observation leaves open the possibility that an unusual aerial phenomenon occurred. This remains a hypothesis rather than an established conclusion because the available evidence does not permit a definitive identification.[Now Declassified]nowdeclassified.comcolares brazil uap 1977Now DeclassifiedColares Brazil UAP Incidents 1977 — Operation Saucer and the Military Investigation | Now Declassified…
Why Operation Saucer remains important
Operation Saucer occupies a distinctive place in Brazil’s UFO history because it combines three features rarely found together:
- prolonged reports from numerous communities;
- an extensive official military investigation;[nowdeclassified.com]nowdeclassified.comcolares brazil uap 1977Now DeclassifiedColares Brazil UAP Incidents 1977 — Operation Saucer and the Military Investigation | Now Declassified…
- surviving declassified documentation available for historical study.[UAP Disclosure Files]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
Unlike later Brazilian cases that rely largely on retrospective testimony, Colares has a contemporaneous documentary record. At the same time, unlike Brazil’s 1986 radar events, the case lacks strong instrumental evidence capable of identifying the objects beyond doubt.
The result is an unusual historical record: one in which the existence of an official investigation is beyond dispute, while the underlying cause of the reported lights, alleged beam attacks and associated injuries remains unresolved. That combination explains why Operation Saucer continues to serve as one of the central reference points in discussions of Brazilian UFO investigations, official archives and the limits of available evidence.[uapdisclosurefiles.com]uapdisclosurefiles.comaceUAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977…
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Endnotes
1.
Source: openuap.space
Title: Open UAPBrazil — UAP / UFO records | Open UAP
Link:https://openuap.space/agency/brazil
2.
Source: archives.gov
Link:https://www.archives.gov/research/topics/uaps/presidential-libraries
3.
Source: archives.gov
Title: Project BLUE BOOK
Link:https://www.archives.gov/research/military/air-force/ufos
4.
Source: uapdisclosurefiles.com
Title: ace 3370 83
Link:https://uapdisclosurefiles.com/files/ace-3370-83/
Source snippet
UAP Disclosure FilesOperacao Prato Mission Report — Colares OVNI Wave (1977) — UAP FilesOctober 20, 1977...
Published: October 20, 1977
5.
Source: ufouap.net
Link:https://www.ufouap.net/en/cases/colares-operation-saucer
6.
Source: nowdeclassified.com
Link:https://www.nowdeclassified.com/incidents/colares-brazil-1977
7.
Source: nowdeclassified.com
Title: colares brazil uap 1977
Link:https://www.nowdeclassified.com/guides/colares-brazil-uap-1977
Source snippet
Now DeclassifiedColares Brazil UAP Incidents 1977 — Operation Saucer and the Military Investigation | Now Declassified...
Additional References
8.
Source: brazilianufoarchives.com
Title: operation saucer 3 operacao prato reports n 021 to n 030 1977
Link:https://brazilianufoarchives.com/2020/07/16/operation-saucer-3-operacao-prato-reports-n-021-to-n-030-1977/
Source snippet
Brazilian UFO ArchivesOPERATION SAUCER #3 [Operação Prato] reports n.021 to n.030 [1977] – Brazilian UFO Archives...
9.
Source: uapdisclosurereads.com
Title: brazil ufo colares operation saucer 1977 declassified
Link:https://uapdisclosurereads.com/brazil-ufo-colares-operation-saucer-1977-declassified/
Source snippet
Sierra / June 15, 2026 P Pablo L. Sierra June 15, 2026 · 7 min read Image Disclosure: This post may contain...
Published: June 15, 2026
10.
Source: youtube.com
Title: Strange Phenomenon in Brazil: Hundreds Attacked by UFOs, Mass Blood Sucking
Link:https://www.youtube.com/watch?v=gLM0urVH_5s
Source snippet
UFO Crash Retrievals, Lockheed Alien Experiments & Remote Viewing | Luis Elizondo • 237...
11.
Source: youtube.com
Link:https://www.youtube.com/watch?v=Mv8NVtNbZ5U
Source snippet
Nick Pope on Human Harm UAP Invasion Incidents...
12.
Source: youtube.com
Title: The Most Witnessed UFO Incident in History | Operation Prato
Link:https://www.youtube.com/watch?v=xluya-2ov40
Source snippet
Fatal Colares UFO Encounters in Brazil (1977) - Jimmy Akin's Mysterious World...
13.
Source: silviolobo.com.br
Title: the colares incident
Link:https://www.silviolobo.com.br/leitura/en/mystery/the-colares-incident
Source snippet
Yesterday — THE COLARES INCIDENT Details Category: Mysteries (XV) Also available...
14.
Source: silviolobo.com.br
Link:https://www.silviolobo.com.br/leitura/en/mystery/colares-incident-case-operation-saucer
Source snippet
o available...
15.
Source: wikidisc.org
Link:https://www.wikidisc.org/wiki/1977_Colares_UFO_Incident
Source snippet
1977 Colares UFO Incident | WikiDiscJuly 1, 2026 — EVIDENCE[EDIT | EDIT SOURCE] MEDICAL DOCUMENTATION[EDIT | EDIT SOURCE] The most compel...
Published: July 1, 2026
16.
Source: realufo.org
Link:https://realufo.org/brazil/
17.
Source: ufotransparency.com
Title: intl br operacao prato 1977 fab operacao prato cc023 reg076 1977
Link:https://ufotransparency.com/files/intl-br-operacao-prato-1977-fab-operacao-prato-cc023-reg076-1977