Scientists find Earth’s oldest asteroid crater from 2.229 BILLION years ago which ‘may have ended an ice age’ ...News

An innocuous crater in Yarrabubba, Western Australia has been identified as the oldest known extraterrestrial impact site on Earth, with researchers calculating that the natural structure dates back a whopping 2.229 billion years. Researchers from Curtin University tested minerals found in rocks at the site. The zircon and monazite crystals in the rocks themselves contain tiny amounts of uranium, and by measuring the uranium's very specifically-timed decay into lead, the team was able to calculate exactly how old the crater is. © NASA

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