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Earth's mantle was 'breathing' oxygen a billion years before it hit the atmosphere, mineral time capsules reveal

Why is there life on Earth? It's one of the oldest questions humans have asked, and as far as we know, our planet is the only one that holds the answer.

Earth's mantle was 'breathing' oxygen a billion years before it hit the atmosphere, mineral time capsules reveal

We haven't written up this one. Phys.org has the full story — the link below goes straight to it.

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