{ "title": "Dunes Frozen in Time", "authors": "HiRISE", "metadata": { "thumbnailURL": "bundle://header.jpg", "excerpt": "In this location in south Melas Chasma, part of the giant Valles Marineris canyon system, the sand dunes appear to have turned to stone." }, "version": "1.5", "identifier": "ESP_062562_1670", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: TUESDAY, 28 JANUARY 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Dunes Frozen in Time" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "The large dunes are slowly being eroded and disappearing, replaced by smaller structures of scalloped sand. Less than 1 km across. (NASA/JPL/UArizona)", "URL": "bundle://ESP_062562_1670-main-01-28.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


Sand dunes are found in many places on Mars. At most of these places the dunes are slowly moving, blown by the wind, just like on Earth. However, in this location in south Melas Chasma they appear to have turned to stone.

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The large dunes are slowly being eroded and disappearing, replaced by smaller structures of scalloped sand.

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ID: ESP_062562_1670
date: 1 December 2019
altitude: 262 km

NASA/JPL/UArizona

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