1978
- The Valentich Disappearance occurred on 21 October 1978, when 20 year old Frederick Valentich disappeared while piloting a small Cessna 182 aircraft over Bass Strait to King Island (Tasmania) after reporting a strange craft flying nearby. The disappearance generated significant press attention, both throughout Australia and internationally. No trace of Valentich or his Cessna has been found, and his description of a large, unusual object has earned his vanishing a place in UFO lore. A Department of Transport aircraft accident investigation concluded the reason for the disappearance could not be determined.
Read more about this topic: UFO Sightings In Australia