Classification: Unverified account

Operation Saucer: the lights of Colares and an open archive

In 1977, residents of Pará's coast reported lights, injuries, and fear of going out at night. Brazil's Air Force recorded testimony, night watches, and photographs. The archive confirms an investigation while leaving crucial questions unresolved.

Colares, Pará, Brasil · See stories from this place and nearby

Colares and the fear of Chupa-Chupa

In Colares, on the coast of Pará, the word that spread in 1977 was not initially ‘UFO’. It was ‘Chupa-Chupa’. Residents said beams of light pursued them at night and left heat, paralysis, pallor, or marks on the skin. The belief that the light ‘sucked blood’ gave the phenomenon its name; it was not a clinical finding of blood loss. In communities where fishing, travel by water, and work after dark shaped daily life, fear changed how people used streets and routes. Families gathered for night watches. That is the case's first human fact: frightened people reorganised their lives around the reports.

Beyond one island

The map is larger than one island. Reports connected the lights with Colares, Vigia, Santo Antônio do Tauá, Mosqueiro, and other places in northeastern Pará. Oral-history researchers show how newspapers both spread the stories and contested their meaning, sometimes portraying residents as gullible or poorly educated. The prejudice in some coverage neither proves nor disproves the lights. It helps explain why, besides seeking protection, communities needed to be taken seriously.

The arrival of I COMAR

Against this background, the First Regional Air Command, based in Belém, sent personnel to interview residents and watch the sky. The mission became known as Operação Prato, or Operation Saucer. Reports, standardised forms, sketches, and photographs produced or gathered by the Air Force now form part of the National Archives holdings. The investigation's existence therefore does not depend on an officer's later recollections: it can be checked in records. Its task was to record reported and observed events, not to announce that their origin had been discovered.

Inside the military records

One especially revealing set is I COMAR's ‘Records of UFO Observations’. It contains 130 entries covering 1977 and 1978. Each form tries to turn a fleeting event into comparable data: place, date, colour, apparent shape, estimated distance, movement, attributed effects, and observer. The number 130 is often repeated as though it meant 130 craft. It means observation entries and reports of unequal kinds, across a wider region and longer period than the most famous weeks in Colares. A form does not turn a witness's estimate into an instrument reading.

Accounts from residents

The documents bring two experiences together that are often blurred. On one hand, people reported beams associated with illness and injuries. The mission report records, for example, statements by residents who said they felt heat or numbness after a light struck them. Dr Wellaide Cecim de Carvalho appears in research and records both as a clinician who heard patients and as a witness to a luminous sighting of her own. Historical studies examine notes about small marks and symptoms. They document that complaints were made and observed; alone, they establish neither the cause of injuries nor blood extraction or unknown technology.

What the military observed

On the other hand, military personnel reported lights during watches and took photographs. In a December 1977 entry, the team itself described a light changing colour and movement. A historical study from the University of São Paulo notes that photographs accompanied the entry but reveal no clearly discernible object's shape. That detail is essential when reading the images. A photograph attached to a report shows that a camera recorded something luminous, within the limits of exposure, focus, and available context; it is not automatically a clear photograph of a craft.

The history of the documents

The documents' later journey creates another trap. The mission report that circulates in reproductions came to public attention decades later and appears in an archival file linked to military discussion of its publication. The observation forms belong to a different documentary set. Distinguishing a report, a copy, a newspaper clipping, and a later memory prevents all of them from receiving the same evidential weight. Revisiting the case in 2017, Brazil's official printing office presented images and treated the operation as real, while also noting that the Air Force had not identified the lights as alien or paranormal. ‘Unidentified’ marks a limit of the record, not a conclusion about origin.

Gaps in the archive

Even the archive has not closed questions about its own contents. In a 2023 freedom-of-information decision, a requester argued that photographs, recordings, and films mentioned in former participants' accounts were absent from the available material. The Air Force Command replied that it had transferred everything it held on the subject to the National Archives and said the additional requested items did not exist in its files. The appeals commission found no evidence sufficient to verify the existence of those materials and did not, in that proceeding, establish concealment. The public decision documents the dispute and the official responses; it does not justify saying secret films were found, destroyed, or deliberately hidden.

The debate needs historical context. The operation took place during Brazil's military dictatorship, when material produced by security agencies was not publicly accessible as it is today. A University of Brasília dissertation situates Operation Saucer within the Air Force's broader history of investigating unidentified aerial objects. Another, from São Paulo, shows how military investigators and civilian UFO researchers moved among methods, beliefs, and institutions. A uniform lent authority to a report, but its authors also worked with testimony, visual estimates, and the interpretations available at the time. A description by an officer is not always an independent measurement.

Memory after the operation

The story continued after the night watches. Oral-history work by Fernandes and Barbosa traces how newspapers and residents' memories gradually built a shared account of the Chupa-Chupa. Another study follows its relationship with UFO tourism in Colares. For people who lived through the fear, the episode is more than a collection of strange images. It includes the way their words were received, challenged, and retold by soldiers, journalists, and visitors.

What remains established

What remains? The record establishes that residents reported frightening experiences, the Air Force conducted a field investigation, and its archives preserve forms, drawings, and images. People also reported symptoms they attributed to the lights. The materials reviewed do not establish that the lights were extraterrestrial vehicles, drew blood, or shared one cause. Operation Saucer remains compelling when we read the archive without asking it to say more than it can: questions about the sky over Colares coexist with a documented history of fear, power, and memory in the Amazon.

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