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A ridge line, perhaps marking the path of an ancient, inverted channel, rises among dunes in this view from Mars Reconnaissance Orbiter. The area shown is about half a mile (about a kilometer) across. Details: https://go.nasa.gov/3oOAboy #NASAMars http://nitter.net/NASAMars/status/1554948893875396609#m

Ridges in Cydonia Mensae – NASA Mars Exploration

This image acquired on March 28, 2022 by NASAs Mars Reconnaissance Orbiter shows a ridge standing prominently in this scene, left behind as the surroundings were eroded, perhaps marking inverted erosion of an ancient fluvial channel.
NASA Mars Exploration
#NASAMars

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