Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” …
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ancient rocks
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Science
Earth’s Oldest Impact Crater Was Just Found in Australia — Exactly Where Geologists Hoped It Would Be
by Troy Oakesby Troy OakesWe have discovered the oldest meteorite impact crater on Earth, in the very heart of the Pilbara region …