HiPOD: Saturday, 18 March 2023
North Polar Cap Layers and Ledges

North Polar Cap Layers and Ledges
At the edge of Mars’ permanent North Polar cap, we see an exposure of the internal layers, each with a different mix of water ice, dust and dirt. These layers are believed to correspond to different climate conditions over the past tens of thousands of years.

When we zoom in closer, we see that the distinct layers erode differently. Some are stronger and more resistant to erosion, others only weakly cemented. The strong layers form ledges.

ID: ESP_045604_2645
date: 18 April 2016
altitude: 319 km

#Mars #science #NASA

Black & white is less than 5 km across; enhanced color is less than 1 km. For full observation details, visit the ID link.