1976 Iran, Tehran: F4 fighter jets of the Iranian Air Force battle UFOs over Tehran, the capital of Iran. 1977 o Argentina, Centeno: Shaped like a giant sombrero, this UFO hovered outside of Centeno for an unknown period of time, and was photographed by an anonymous source. A similar object was witnessed in Ontario, Canada two years earlier. o Novy Georgy Island. December, not far from the, the crew of the fishing trawler Vasily Kuselev also observed rising vertically from under the water was a doughnut-shaped object. Its diameter was between 300 and 500 meters. It hovered at the altitude of four to five kilometers. The trawler's radar station...