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Geologists Confirm a Staggering 2.2 Billion-Year-Old Impact Crater in Australia
Throughout its life, our planet has been pummelled by countless asteroids and comets - even more so than the crater-ridden Moon. Today, thanks to Earth's continually changing surface, there are remarkably few scars left to tell the tale.
Australia's relatively stable and ancient landscape not only harbours potentially the largest of those blemishes, scientists now think it also contains the oldest... by a long, long shot.
"When the age came back at 2.229 billion years, that blew our hair back," geochemist Aaron Cavosie from Curtin University in Australia told ScienceAlert.
"We've known about this crater for almost 20 years, but nobody realised it was the oldest until now."
The Yarrabubba crater is a massive indent in the Western Australian outback, roughly 70 kilometres wide (44 miles).
