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4-billion-year-old 'Rosetta Stone' found in Sahara Desert could unlock the secret history of water on Mars

A rock discovered in the Sahara Desert formed more than 4.1 billion years ago, making it one of the oldest Martian meteorites ever found. The ancient space rock offers a rare glimpse into the formation of Mars' early crust and its possible interaction with water.

4-billion-year-old 'Rosetta Stone' found in Sahara Desert could unlock the secret history of water on Mars

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

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