{ "title": "HiPOD", "metadata": { "thumbnailURL": "bundle://header.jpg", "excerpt": "Nili Fossae is a perennial selection as a possible landing site, especially given its diverse minerals and presence of clays." }, "version": "1.5", "identifier": "ESP_055277_1990", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: WEDNESDAY, 23 OCTOBER 2019" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "The Impossibly Gorgeous Landscape of Nili Fossae" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "A small portion of Nili Fossae, showing a large impact crater and very rough terrain. (NASA/JPL/University of Arizona)", "URL": "bundle://ESP_055277_1990-main.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


Like Mawrth Vallis, Nili Fossae is a perennial candidate for possible landing sites, mainly owing to the presence of clays that have been detected here. When we hear the word “clays,” we often assume that it refers to something currently wet. That isn’t the case today on Mars, which is bone dry.

" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "Another cutout of the full observation, directly south of the impact crater shown above. (NASA/JPL/University of Arizona)", "URL": "bundle://ESP_055277_1990-02.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


Nevertheless, the presence of clays give us a window into an ancient, wetter past. The clays likely derive from the material excavated from the nearby giant impact crater, the Isidis Basin. Additionally, there are rocks in Nili Fossae that contain carbonate minerals and more interestingly, it’s also the source of plumes of methane.

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In any case, there’s a great deal of mineralogical variety here, and it’s gorgeous terrain!

" }, { "role": "gallery", "layout": "noMarginLayout", "animation": { "type": "move_in", "preferredStartingPosition": "right" }, "items": [ { "URL": "bundle://ESP_055277_1990-03.jpg", "caption": "The southwestern ridge of the impact crater in enhanced color, using our red-green-blue (RGB) channel. (NASA/JPL/University of Arizona)" }, { "URL": "bundle://ESP_055277_1990-04.jpg", "caption": "Another cutout in enhanced RGB color, showing numerous thin dune crests. (NASA/JPL/University of Arizona)" }, { "URL": "bundle://ESP_055277_1990-05.jpg", "caption": "Part of a small uplift with exposed bedrock in enhanced RGB color. (NASA/JPL/University of Arizona)" }, { "URL": "bundle://ESP_055277_1990-06.jpg", "caption": "This cutout is the same as the previous one, except it’s from the infrared-red-blue (IRB) channel, giving us a very different look. (NASA/JPL/University of Arizona)" } ] }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


NASA/JPL/University of Arizona

ID: ESP_055277_1990
date: 12 May 2018
altitude: 277 km

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