HiRISE Picture of the Day: 17 January 2021 
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The Busy Flank of Arsia Mons

The Busy Flank of Arsia Mons
This observation shows an incredible diversity of ancient lava tubes and impact craters filled with sediment on the flank of Arsia Mons.

The rationale for this observation is to get a better look at those lava tubes; their shapes, morphology, and erosional degradation, which ultimately might help to date active period when lava flowed through the volcano. We will also be able to see in high resolution an erosional “snapshot” of the collapsed lava tubes and how they have been modified by dust falling from the air, mass-wasting, and impacts over time.

ID: ESP_031944_1790
date: 20 May 2013
altitude: 254 km

NASA/JPL/UArizona
https://uahirise.org/hipod/ESP_031944_1790
#Mars #science #NASA

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Black & white is less than 5 km across; enhanced color is less than 1 km