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Mars’ distinctive black streaks, long attributed to landslides from melting ice, are now understood to primarily result from seasonal wind and dust erosion, according to a new study published in Nature Communications. Researchers analyzed 2.1 million slope streaks captured by NASA’s Mars Reconnaissance Orbiter, revealing these formations peak during high seasonal wind speeds. The study also indicates that these streaks contribute significantly to Martian atmospheric dust, which is crucial for future human colonization efforts. Understanding their formation, which often occurs at sunrise and sunset, could enhance our knowledge of Martian dynamics and inform upcoming missions.
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