HiRISE: Bright slope streaks in Arabia Terra

ESP_038044_1965This observation shows bright and dark slope streaks in craters in the Arabia Terra region. Slope streak formation is among the few known processes currently active on Mars. The cause of slope streaks is still debated, and both dry and wet processes have been proposed to explain their formation. They are most commonly believed to form by gravity-driven movement of extremely dry sand or very fine-grained… [More at link]

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