4.1-Billion-Year-Old Martian Meteorite Found in Mali Preserves Water Traces

A Martian meteorite discovered in Mali in 2022, initially classified as common, has been dated to over 4.1 billion years old using laser analysis. The rock preserves evidence of water interactions on Mars' crust, providing new constraints on early Martian hydrology. The finding is published in Science, but details on the specific water signatures remain limited.

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