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Earth's Oldest Impact Site Revealed: 2.229 Billion Years

3/5/2025

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Summary

Story summary

The Yarrabubba crater in Western Australia has been identified as Earth's oldest asteroid impact site, dating back an astonishing 2.229 billion years. This groundbreaking discovery, shared in Nature Communications, hints that the impact could have triggered significant climate changes by releasing water vapor, marking a pivotal moment at the end of the Huronian glaciation.

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Story summary

The Yarrabubba crater in Western Australia has been identified as Earth's oldest asteroid impact site, dating back an astonishing 2.229 billion years. This groundbreaking discovery, shared in Nature Communications, hints that the impact could have triggered significant climate changes by releasing water vapor, marking a pivotal moment at the end of the Huronian glaciation.