This is a list of alleged sightings of unidentified flying objects or UFOs in Brazil.
"Such civilization could see that in Earth we now have atomic bombs and that we are quickly improving our rockets. Given the past history of mankind - frequent wars showing a belligerent human race - they must have become alarmed. We should, therefore, expect, especially at these times, to receive such visits. According to this, the main objective of the aliens would be to watch our space improvements, fearing we could become a threat to other planets. If this hypothesis is exact, it could be expanded to link the launching of the Sputniks with the attack to the Fort Itaipu. However, this sounded absurd for all investigators. It would mean that the aliens would be worried about our firsts steps in space, and by small space ships so primitive that would look like a canoe if compared to a transatlantic liner. It would also mean that those burnings had the purpose of demonstrating the superior weapons they could use against the aggressive explorers coming from the Earth. However, we were still far from piloted space flight, even to the Moon. According to human logic, we would not be able to threaten a superior space ship - not now nor later."
Two men were found dead near Niterói. Both were wearing lead masks. A UFO allegedly was seen flying near the point where both died.[12]
According to veteran UFOlogist, Alberto Francisco do Carmo, sightings and encounters northwest of São Paulo led to the development in 1966 of an office called SIOANI (for Serviço de Informação de Objetos Aéreos Não Identificados).[13] Headed by Major Gilberto Zani de Melo, the study and office was shut down years after his retirement.
This was the first operation of the Brazilian Air Force conducted only to investigate UFO-related issues. This operation was started shortly after the Colares UFO flap.
A series of UFO sightings all over the states of southeastern Brazil, which led to several jet fighters being scrambled to intercept. During the attempted interceptions, pilots reported the objects capable of 90-degree turns and hypersonic flight.[17]
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