{ "title": "Changes of a Happy Crater", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2021-01-21/ESP_067414_0945.jpg", "excerpt": "We’ve monitored the so-called Happy Face Crater in the south polar region of Mars for almost a decade." }, "version": "1.5", "identifier": "ESP_067414_0945", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 21 January 2021" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Changes of a Happy Crater" }, { "role": "embedwebvideo", "aspectRatio": 1.777, "URL": "https://youtu.be/R-wlxYb_pE4", "caption": "HiClip: Changes of a Happy Crater", "accessibilityCaption": "This is a closed-captioned clip." }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


We’ve monitored the so-called Happy Face Crater in the south polar region of Mars for almost a decade. Two images that we took, one in 2011 and the other in 2020, at roughly the same season, show color variations that are due to different amounts of bright frost over darker red ground.

HiClip narration by Tre Gibbs.

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ID: ESP_067414_0945
date: 13 December 2020
altitude: 247 km (153 mi)

NASA/JPL/UArizona

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