{ "title": "A Youthful Crater in Cydonia Colles", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-09-04/ESP_025716_2200.jpg", "excerpt": "This crater appears to have experienced much less erosion than many other Martian craters. Ah, youth!" }, "version": "1.5", "identifier": "ESP_025716_2200", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 4 September 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "A Youthful Crater in Cydonia Colles" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "This crater appears to have experienced much less erosion than many other Martian craters. Less than 5 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-09-04/ESP_025716_2200.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


This observation shows a youthful crater with sharp rim and gullied slopes.

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Just what makes a Martian crater youthful, in a geologic sense? Very old craters tend to have eroded rims and can have plenty of material that’s filled in the floor. Gale Crater, where the Mars Science Laboratory will land this summer, is an example of an ancient, highly eroded crater. By contrast, the crater in this image appears to have experienced much less erosion.

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Note that even though a crater might be called “youthful,” it can still mean that the crater formed thousands of years ago, if not more.

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ID: ESP_025716_2200
date: 21 January 2012
altitude: 298 km

NASA/JPL/UArizona

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