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This image from NASA's Mars Odyssey is of 'swiss cheese' terrain. Sometimes simple terms like these can accurately describe the appearance of a surface, but it does not relate at all to how that surface texture may have formed.
This image from NASA's Mars Odyssey is of 'swiss cheese' terrain. Sometimes simple terms like these can accurately describe the appearance of a surface, but it does not relate at all to how that surface texture may have formed.

South Polar Surface

The South Pole is receiving sun every day now as spring progresses. The surface texture visible in this image captured by NASA's Mars Odyssey was created by the effect of solar warming on the ice.
The South Pole is receiving sun every day now as spring progresses. The surface texture visible in this image captured by NASA's Mars Odyssey was created by the effect of solar warming on the ice.

South Polar Surface

This image from NASA's Mars Odyssey shows a portion of Avernus Colles. The term 'colles' means small hills, and the surface here is being fractured into many small hills and mesas.
This image from NASA's Mars Odyssey shows a portion of Avernus Colles. The term 'colles' means small hills, and the surface here is being fractured into many small hills and mesas.

Avernus Colles

Baetis Chasma is a chasmata near but not directly connected to Valles Marineris. Dunes are prevalent on the floor of this portion of Juventae Chasma in this image taken by NASA's 2001 Mars Odyssey.
Baetis Chasma is a chasmata near but not directly connected to Valles Marineris. Dunes are prevalent on the floor of this portion of Juventae Chasma in this image taken by NASA's 2001 Mars Odyssey.

Juventae Chasma

This image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter shows gullies near the edge of Hale crater on southern Mars.
This image from the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter shows gullies near the edge of Hale crater on southern Mars.

Gullies at the Edge of Hale Crater, Mars

One small section of this image from NASA's Mars Reconnaissance Orbiter spacecraft shows boulders that have rolled down the slope of a crater wall. The boulders vary in size, with the largest one approximately 6 meters across.
One small section of this image from NASA's Mars Reconnaissance Orbiter spacecraft shows boulders that have rolled down the slope of a crater wall. The boulders vary in size, with the largest one approximately 6 meters across.

Slope Instability

This image captured by NASA's 2001 Mars Odyssey spacecraft shows numerous dark streaks on the inner rim of this unnamed crater.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows numerous dark streaks on the inner rim of this unnamed crater.

Dark Slope Streaks

Several different surface textures are evident in this image from NASA's 2001 Mars Odyssey spacecraft. This complex region is located between Lycus Sulci to the south and Acheron Fossae to the north, all of which is just north of Olympus Mons.
Several different surface textures are evident in this image from NASA's 2001 Mars Odyssey spacecraft. This complex region is located between Lycus Sulci to the south and Acheron Fossae to the north, all of which is just north of Olympus Mons.

Textures

This image captured by NASA's 2001 Mars Odyssey spacecraft shows visible dark streaks on the slopes of hills and crater rims in Amazonis Planitia.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows visible dark streaks on the slopes of hills and crater rims in Amazonis Planitia.

Dark Slope Streaks

The THEMIS VIS camera contains 5 filters. Data from different filters can be combined in many ways to create a false color image. This image from NASA's 2001 Mars Odyssey spacecraft shows a unique, resistant material on the floor of an unnamed crater.
The THEMIS VIS camera contains 5 filters. Data from different filters can be combined in many ways to create a false color image. This image from NASA's 2001 Mars Odyssey spacecraft shows a unique, resistant material on the floor of an unnamed crater.

Terra Cimmeria Crater - False Color

The THEMIS VIS camera contains 5 filters. Data from different filters can be combined in multiple ways to create a false color image. This image from NASA's 2001 Mars Odyssey spacecraft shows the floor and rim of an unnamed crater in Terra Cimmeria.
The THEMIS VIS camera contains 5 filters. Data from different filters can be combined in multiple ways to create a false color image. This image from NASA's 2001 Mars Odyssey spacecraft shows the floor and rim of an unnamed crater in Terra Cimmeria.

Crater - False Color

This image captured by NASA's 2001 Mars Odyssey spacecraft shows dunes on the floor of an unnamed crater in Noachis Terra.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows dunes on the floor of an unnamed crater in Noachis Terra.

Crater Dunes

This image captured by NASA's 2001 Mars Odyssey spacecraft shows numerous gullies are visible on the cliff face of a depression within the floor of Lyell Crater.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows numerous gullies are visible on the cliff face of a depression within the floor of Lyell Crater.

Lyell Crater

This image captured by NASA's 2001 Mars Odyssey spacecraft shows sand dunes on the floor of an unnamed crater in Arabia Terra.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows sand dunes on the floor of an unnamed crater in Arabia Terra.

Dunes

The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.
The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.

Strange Cones and Flows

This image from NASA's 2001 Mars Odyssey spacecraft shows a portion of Alba Fossae, located on the northwestern margin of Alba Mons. Small channels are also visible.
This image from NASA's 2001 Mars Odyssey spacecraft shows a portion of Alba Fossae, located on the northwestern margin of Alba Mons. Small channels are also visible.

Alba Fossae

This image from NASA's 2001 Mars Odyssey spacecraft shows a portion of Nanedi Valles.
This image from NASA's 2001 Mars Odyssey spacecraft shows a portion of Nanedi Valles.

Nanedi Valles

Since landing on Mars in August 2012, NASA's Curiosity Mars rover has fired the laser on its Chemistry and Camera (ChemCam) instrument more than 100,000 times at rock and soil targets up to about 23 feet (7 meters) away.
Since landing on Mars in August 2012, NASA's Curiosity Mars rover has fired the laser on its Chemistry and Camera (ChemCam) instrument more than 100,000 times at rock and soil targets up to about 23 feet (7 meters) away.

Target for 100,000th Laser Shot by Curiosity on Mars

This image of terrain inside Mars' Gale Crater and the calibration target for Mastcam on NASA's Mars rover Curiosity illustrate how false color can be used to make differences more evident in the materials in the scene.
This image of terrain inside Mars' Gale Crater and the calibration target for Mastcam on NASA's Mars rover Curiosity illustrate how false color can be used to make differences more evident in the materials in the scene.

Using False Color from Curiosity's Mast Camera

The eastern margin of a rippled dune in Herschel Crater on Mars moved an average distance of three meters (about three yards) between March 3, 2007 and December 1, 2010, in one of two images taken by NASA's Mars Reconnaissance Orbiter.
The eastern margin of a rippled dune in Herschel Crater on Mars moved an average distance of three meters (about three yards) between March 3, 2007 and December 1, 2010, in one of two images taken by NASA's Mars Reconnaissance Orbiter.

Shifting Sand in Herschel Crater

The area in and near the landing site selected for landing of NASA's Mars Science Laboratory offers a diversity of possible targets for examination by the mission's rover, Curiosity.
The area in and near the landing site selected for landing of NASA's Mars Science Laboratory offers a diversity of possible targets for examination by the mission's rover, Curiosity.

Attractions for Study in and near Curiosity's Selected Landing Site

The dunes in this image from NASA's Mars Odyssey are located on the floor of an unnamed crater in Terra Cimmeria.
The dunes in this image from NASA's Mars Odyssey are located on the floor of an unnamed crater in Terra Cimmeria.

Terra Cimmeria Dunes

Alluvial fans are piles of debris dumped by rivers when they emerge from the mountains and enter a mostly dry valley as seen by NASA's Mars Reconnaissance Orbiter.
Alluvial fans are piles of debris dumped by rivers when they emerge from the mountains and enter a mostly dry valley as seen by NASA's Mars Reconnaissance Orbiter.

Sinuous Ridge on the Orson Welles Bajada

This infrared image captured by NASA's 2001 Mars Odyssey spacecraft shows bright toned material, which is warmer than dark toned surfaces. Material has moved downslope from the top of this hill in Promethei Terra.
This infrared image captured by NASA's 2001 Mars Odyssey spacecraft shows bright toned material, which is warmer than dark toned surfaces. Material has moved downslope from the top of this hill in Promethei Terra.

Debris Flow

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. This false color image from NASA's 2001 Mars Odyssey spacecraft shows some of the plains of Arabia Terra.
The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. This false color image from NASA's 2001 Mars Odyssey spacecraft shows some of the plains of Arabia Terra.

Arabia Terra - False Color

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