Thirty years ago during the early evening of October 21st 1978 pilot Frederick Valentich reported in a radio communication with Steve Robey of Melbourne Flight Service that “a large aircraft” which had “a long shape”, “a green light”, appearing to have a bright metallic lustre and 4 bright lights, travelled variously at high speed, approached his Cessna aircraft, apparently hovered in a stationary manner and also orbited above him.  Full Article