{ "title": "Cliffs in Ancient Ice", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-10-20/ESP_065881_1225.jpg", "excerpt": "We study this ice to learn about Mars’ ancient climate and astronauts’ future water supplies." }, "version": "1.5", "identifier": "ESP_065881_1225", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 20 October 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Cliffs in Ancient Ice" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "Sometimes we see the buried ice because cliffs form like the one in this image. This cutout uses the infrared-red-blue center swath of the full observation. Less than 1 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-10-20/ESP_065881_1225.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


Scientists have come to realize that, just below the surface, about one third of Mars is covered in ice. We study this ice to learn about Mars’ ancient climate and astronauts’ future water supplies.

Sometimes we see the buried ice because cliffs form like the one in this image. On the brownish, dusty cliff wall, the faint light-blue-colored ice shows through. Some of these cliffs change before our eyes and boulders of ice can tumble downhill. We take repeat images of these scenes to check for changes like this.

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ID: ESP_065881_1225
date: 15 August 2020
altitude: 250 km

NASA/JPL/UArizona

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