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Australia has 30 impact craters out of 176 recognised worldwide. See our gallery of some of the best.
Wolfe Creek meteorite crater, in northern Western Australia – the country's best-known impact crater – was formed 300,000 years ago. The meteorite that caused the crater would have weighed more than 50,000 tonnes and is thought to have been travelling at 15km/second.
The crater would have been a lot deeper when it was first formed, but sand dunes on the eastern side have blown in a lot of sand and filled the crater somewhat.
Discovered by Europeans in just 1947, the crater was long known by traditional owners, who called it Kandimalal.
Photo credit: Dick and Pip Smith