Sahara meteorite may be one of the oldest Martian rocks found, dating to at least 4.1 billion years ago
A reddish igneous meteorite recovered in Mali’s Sahara in 2022 formed in the Martian crust at least 4.1 billion years ago, scientists say. The NASA-funded study identifies it as a possible oldest-known example among the 435 meteorites from Mars found on Earth.