Brazil
Declassified UFO dossiers from the Brazilian National Archive, covering military witness reports, case investigations, photographic evidence, official correspondence, and the records of Operation Saucer (Operação Prato). Documents are in Portuguese.
The Brazilian UFO Files
Brazil was one of the first countries to take UFO reports seriously at a military level. The Brazilian Air Force created SIOANI (Sistema de Investigação de Objetos Aéreos Não Identificados) in the 1960s to collect and investigate sighting reports. The "tráfego hotel" designation, military code using the NATO phonetic "H" for unidentified aerial traffic, shows how deeply integrated UFO reporting was within Brazilian military communications.
The collection held at the Arquivo Nacional covers the full scope of Brazilian military and civilian UFO documentation. Witness testimony from farmers, police officers, pilots, and military personnel. Case investigations with photographs and trajectory reconstructions. The records of Operation Saucer (Operação Prato), the Brazilian Air Force's intensive investigation of UFO activity in the Colares region of Pará state in 1977 to 1978, where hundreds of residents reported being struck by beams of light from aerial objects.
Congress ordered the Brazilian Air Force to declassify its UFO files in 2010. The Arquivo Nacional received the material and made it available through SIAN (Sistema de Informações do Arquivo Nacional). The collection encompasses 936 individual dossiers.
In September 1977, the Brazilian Air Force deployed a team to the island of Colares in Pará state after hundreds of residents reported being attacked by luminous aerial objects. Captain Uyrangê Hollanda led the four-month investigation, photographing and filming unidentified objects. Hollanda later testified publicly about the investigation before his death in 1997. The Operação Prato files are the largest single dossier in this collection.
The archive holds Brazilian sighting records sourced from newsletters, databases, and government files. Browse the full sightings data on the Brazil country page.
Browse the Collection
Search and filter all 936 dossiers. Each entry links to the original document on the Arquivo Nacional website.
