{ "title": "Martian Honeycomb Hideout", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-10-27/ESP_024061_2610.jpg", "excerpt": "The most striking aspect of this image is the honeycomb-like pattern of the dunes." }, "version": "1.5", "identifier": "ESP_024061_2610", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 27 October 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Martian Honeycomb Hideout" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "This dark spot is most likely caused by sublimation, where a solid passes directly into a gaseous state and exposes the darker subsurface. Less than 1 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-10-27/ESP_024061_2610.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


The most striking aspect of this image is the honeycomb-like pattern of the dunes.

This is a seasonal monitoring site, meaning HiRISE takes pictures across the seasons to view what changes occur and what causes them. The surface here is covered with seasonal carbon dioxide frost. In this case, we can compare locations of cracks in the frost to previous images.

In this cutout, we see a dark spot on the slope of a dune. This is most likely caused by sublimation, where a solid passes directly into a gaseous state. The frost is translucent (some light passes through), so it sublimates at the base and pressure builds up. When the gas escapes, it can expose the dark ground or throw sand on top of the frost, producing dark spots like these.

" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "Another view of the terrain. Less than 5 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-10-27/ESP_024061_2610-2.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


ID: ESP_024061_2610
date: 14 September 2011
altitude: 321 km (199 mi)

NASA/JPL/UArizona

" }, { "role": "caption", "format": "html", "layout": "halfMarginBothLayout", "text": "Enhanced color is less than 1 km across; black and white is less than 5 km. For full images with scalebars, see the above ID link to our website.

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