Westall 1966: Australia’s Most Well-Known Unresolved UFO Sighting

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On 6 April 1966 at Westall High School in Clayton South, Victoria, many witnesses including Shaun Matthews saw a round, domed, white-silver object descend behind trees and possibly land or hover, with reports of burnt grass and later explanations proposing a Laverton weather balloon or Keith Basterfield's HIBAL balloon, while skeptic Brian Dunning cautioned that memories may be distorted, making it Australia’s best-known unsolved mass UFO sighting with lasting cultural reminders such as the Grange Reserve UFO Park.

Westall UFO - Wikipedia
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Westall UFO - Wikipedia

On 6 April 1966 at Westall High School in Clayton South, Victoria, multiple witnesses described a round, domed, white-to-silver flying object that descended behind trees into the Grange area and was reportedly pursued by aircraft, with accounts of landing, hovering, or being seen by students and a teacher, Shaun Matthews describing a purple-tinted object larger than a car, a burnt or flattened circular patch appearing in the grass afterward, by 9 April air force personnel and UFO enthusiasts found nothing and the landowner burned the field, contemporary explanations citing a Laverton weather balloon and later analysis by Keith Basterfield proposing a HIBAL high-altitude radiation-monitoring balloon, skeptics like Brian Dunning cautions about inflated or misremembered details, and the case continuing in local culture through documentaries, school curricula, and Grange Reserve UFO Park as Australia’s best-known mass UFO sighting with no definitive conclusion.