{ "title": "HiPOD", "metadata": { "thumbnailURL": "bundle://header.jpg", "excerpt": "Gully formation remains an area of keen interest for scientists because the process is not exactly known." }, "version": "1.5", "identifier": "ESP_055427_1205", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: WEDNESDAY, 13 NOVEMBER 2019" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "Gullies in Charitum Montes" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "Less than 5 km across. (NASA/JPL/University of Arizona)", "URL": "bundle://ESP_055427_1205-main-11-13.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "


Gullies and their formation remain a topic of keen interest for scientists: how exactly do they form? It was fairly common to think they formed due to some kind of fluid activity in the ancient past, but HiRISE has seen new gully formation occurring in present times. This is due to the defrosting of carbon dioxide frost on crater slopes. Frost is also visible in this picture.

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The objective of this observation is to examine a group of gullies in a depression in Charitum Montes. Pictures like this will help us map the distribution of gullies. There are not many gullies in this region compared to many other places. Charitum Montes is a large group of mountains about 850 kilometers across.

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ID: ESP_055427_1205
date: 24 May 2018
altitude: 250 km

NASA/JPL/University of Arizona

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