Teghaz 001: Martian meteorite shows traces of ancient liquid water

Scientists confirmed that Teghaz 001—eight fragments totaling about 800 grams, found in 2022 on the Sahara in Mali—is one of the oldest Martian meteorites to reach Earth. NASA-funded research detected traces of liquid water in the rock, opening a new window on early Mars history and potentially habitable conditions. The largest fragment weighs 442 grams and is the size of a fist.

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