The time and hour are not accurate but it happenned in 1975. Me and my family lived in a place vary far from downtown Brasilia.
My sister and I were going back home after a school day along with 2 other girls who lived in the same place. My mother parked the car just in fornt of these girls house and we were received by their parents on the porch. I stayed in the front seat of the car.
I felt like watching the sky when something started moving. First I thought it was a bug on the windscreen moving sideways. I walked out of the car and could see that there was nothing on the windscreen, then I turned my face up and I could see a small silver circle shaped object making turns very fast, moving sideways and stopping every now and then.
I called the people that were just a few feet away from the car and they witnessed the same phenomenon. Then this small object went upwards and a black ring formed around it, and it disappeared.
This was the first sighting, there was another one but this one was really scary.
My sister had to see a psychologist after that.
All I can say is that in that place lived the top ranking military generals in the Brasilian army and it was well guarded. One of the witnesses was a major in the army.
From that day on my life changed. It was like a new understanding of everything. After these sightings my father invited 2 military pilots for a talk about UFOs. Both pilots confirmed that they had already followed lots of targets over Brasilia sky but they were not allowed to speak about it.