Science and Exploration

Two-Color Aeolian Ridges On Mars

By Keith Cowing
Status Report
NASA
January 13, 2023
Filed under ,
Two-Color Aeolian Ridges On Mars
Two-Color Aeolian Ridges On Mars
NASA

This image covers part of the floor of Noctus Labyrinthus at the western end of Valles Marineris.

The cutout shows aeolian (wind-formed) ridges that have a reddish color on their southeast-facing slopes and a bluish color on their northwest-facing slopes. Most likely this color difference is due to deposition or preservation of reddish dust on generally south-facing slopes.

ID: ESP_076582_1730
date: 27 November 2022
altitude: 263 km

https://uahirise.org/hipod/ESP_076582_1730NASA/JPL-Caltech/UArizona

SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.