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  "authors": "HiRISE",
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    "excerpt": "These sand dunes in a crater south of Mawrth Vallis are being monitored to measure changes."
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        "text": "HiPOD: THURSDAY, 20 FEBRUARY 2020"
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        "caption": "These sand dunes in a crater south of Mawrth Vallis are being monitored to measure changes. Less than 1 km across. (NASA/JPL/UArizona)",
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        "text": "<p><br />These sand dunes in a crater south of Mawrth Vallis are being monitored to measure changes. However, active dunes also clear the dust off of the bedrock between the dunes, which may have diverse colors and compositions, as in the enhanced-color cutout.<br /></p>"
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        "text": "<p>Mawrth Vallis is also a region that’s long been on the short list for possible landing sites and exploration, owing to the clays that have been detected there.<br /></p>"
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              "caption": "A larger scene of the observation. Less than 5 km across. (NASA/JPL/UArizona)"
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              "URL": "bundle://ESP_062863_1980-02-20-3.jpg",
              "caption": "This color cutout uses the red-green-blue center swath of our observation. Less than 1 km across. (NASA/JPL/UArizona)"
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              "caption": "Less than 1 km across. (NASA/JPL/UArizona)"
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        "text": "<p>ID: <a href='https://uahirise.org/ESP_062863_1980'>ESP_062863_1980</a><br />date: 24 December 2019<br />altitude: 282 km<br /><br />NASA/JPL/UArizona</a></p>"
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        "text": "Black and white images are less than 5 km across. Enhanced color images are less than 1 km across. For images with scalebars, see the above ID link to our website.<br />"
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