NASA Discovery Reveals Complex Water Systems on Early Mars
When NASA’s Perseverance rover reached the inner edge of Mars’ Jezero Crater in September 2023, mission scientists were surprised by what they found. Called the “Margin Unit,” the geologic area stretches along the shoreline of an ancient Martian lake, so they expected sedimentary rocks, which would have formed as layers of sand piled on top […] The post NASA Discovery Reveals Complex Water…
NASA’s Perseverance rover has discovered complex water systems on early Mars, challenging previous expectations. The rover explored a geologic area called the "Margin Unit" near the inner edge of Jezero Crater’s rim, which includes carbonate minerals and igneous rocks. These rocks are vital for understanding ancient life, as carbonate minerals often form in shallow ocean and lake environments capable of supporting life.
The findings were published in the journal Communications Earth & Environment. The SuperCam instrument on the rover determined the mineralogy of the rocks based on the light they reflect. Perseverance analyzed over 185 bedrock targets in the Margin Unit using SuperCam. The Margin Unit’s discovery is significant because Jezero Crater sits inside one of the largest exposures of carbonate on Mars, meaning the findings extend well beyond this crater.
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