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⁘Our knowledge of its chemical composition is limited, but early interpretations are that igneous and/or metamorphic processes could have created its stripes,⁘ NASA said in a statement . The fact that Freya Castle is a loose stone and different from the underlying bedrock suggests it likely arrived from someplace else. ⁘This possibility has us excited,⁘ NASA said. ⁘We hope that as we continue to drive uphill, Perseverance will encounter an outcrop of this new rock type so that more detailed measurements can be acquired.⁘
For nearly a month, Perseverance has been climbing up the steep slopes leading to the rim of the Jezero Crater , scouring for clues into early Martian history . While the slopes initially made for a tricky, slow ascent, the rover's progress has recently improved as it cruises along a flatter stretch, according to NASA. The rover first landed in Mars' Jezero Crater in February 2021.
Freya Castle is just the latest intriguing rock spotted by Perseverance during its mission. In June , the Perseverance team discovered a strange light-toned boulder with dark speckles standing out among a field of similarly-sized rocks on Mount Washburn in Mars' Jezero Crater .
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