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This image from NASA's Mars Odyssey shows a region of Mars' northern hemisphere called Ismenia Fossae. Most of the landforms are the degraded remains of impact crater rim and ejecta from an unnamed crater (75 km diameter) just north of this scene.
This image from NASA's Mars Odyssey shows a region of Mars' northern hemisphere called Ismenia Fossae. Most of the landforms are the degraded remains of impact crater rim and ejecta from an unnamed crater (75 km diameter) just north of this scene.

Ismenia Fossae

This image from NASA's Mars Odyssey shows a portion of Aureum Chaos located just south of the Martian equator. This fractured landscape contains canyons and mesas with two large impact craters in the upper left.
This image from NASA's Mars Odyssey shows a portion of Aureum Chaos located just south of the Martian equator. This fractured landscape contains canyons and mesas with two large impact craters in the upper left.

Canyons and Mesas of Aureum Chaos

This image from NASA's Mars Odyssey spacecraft captures two channels (Nirgal Vallis is the smaller sinuous channel on the left and Uzboi Vallis is the larger channel located in the lower right) and Luki Crater located in the upper right.
This image from NASA's Mars Odyssey spacecraft captures two channels (Nirgal Vallis is the smaller sinuous channel on the left and Uzboi Vallis is the larger channel located in the lower right) and Luki Crater located in the upper right.

Uzboi Vallis, Nirgal Vallis, and Luki Crater

This stereo image mosaic from NASA's Mars Global Surveyor is of a field of dunes located in Nili Patera, a volcanic depression in central Syrtis Major. 3D glasses are necessary to view this image.
This stereo image mosaic from NASA's Mars Global Surveyor is of a field of dunes located in Nili Patera, a volcanic depression in central Syrtis Major. 3D glasses are necessary to view this image.

Sand Dunes of Nili Patera in 3-D

This image is a single frame from a computer animation, which begins with a view of Mars created with images from NASA's Mars Odyssey spacecraft in which color is used to emphasize the Martian topographic, andesite, and basalt compositional differences.
This image is a single frame from a computer animation, which begins with a view of Mars created with images from NASA's Mars Odyssey spacecraft in which color is used to emphasize the Martian topographic, andesite, and basalt compositional differences.

Still From Odyssey Clip 1

This image was taken by NASA's Mars Global Surveyor Cydonia region on Mars. 3D glasses are necessary to view this image.
This image was taken by NASA's Mars Global Surveyor Cydonia region on Mars. 3D glasses are necessary to view this image.

Cydonia: Wide Angle Color Image

This anaglyph view of 'Half Dome' was produced by NASA's Mars Pathfinder's Imager camera. 3D glasses are necessary to identify surface detail.
This anaglyph view of 'Half Dome' was produced by NASA's Mars Pathfinder's Imager camera. 3D glasses are necessary to identify surface detail.

Half Dome in Super Resolution from Super Panorama

Portions of the lander's deflated airbags and a petal are at lower left in this image from NASA's Mars Pathfinder. 3-D glasses are necessary to identify surface detail.
Portions of the lander's deflated airbags and a petal are at lower left in this image from NASA's Mars Pathfinder. 3-D glasses are necessary to identify surface detail.

Martian Terrain and Airbags - 3-D

This image captured by NASA's Mars Reconnaissance Orbiter appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae.
This image captured by NASA's Mars Reconnaissance Orbiter appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae.

Moving Mass Material on a Mesa

The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.

Waiting for Dust Devils

The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.

Blockfall on the North Polar Layered Deposits

On Mars, alluvial fans are sometimes visible in impact crater basins, as material from the steep rims is transported radially inward to the relatively flat floor. This image is from NASA's Mars Reconnaissance Orbiter.
On Mars, alluvial fans are sometimes visible in impact crater basins, as material from the steep rims is transported radially inward to the relatively flat floor. This image is from NASA's Mars Reconnaissance Orbiter.

An Alluvial Fan in a Low-Latitude Crater

This image from NASA's Mars Reconnaissance Orbiter shows features commonly found in dusty areas: impacts, slope streaks and bed-forms.
This image from NASA's Mars Reconnaissance Orbiter shows features commonly found in dusty areas: impacts, slope streaks and bed-forms.

Touring a Dusty Region

This crater, seen NASA's Mars Reconnaissance Orbiter, is located in Meridiani Planum, about 20-kilometers northwest of where NASA's Opportunity rover landed in 2004 and about 42-kilometers northwest of Endeavour Crater's rim.
This crater, seen NASA's Mars Reconnaissance Orbiter, is located in Meridiani Planum, about 20-kilometers northwest of where NASA's Opportunity rover landed in 2004 and about 42-kilometers northwest of Endeavour Crater's rim.

A Large Crater in Meridiani Planum

This image from NASA's Mars Reconnaissance Orbiter shows the western rim of a well-preserved 8.5-kilometer (about 5 miles) diameter impact crater.
This image from NASA's Mars Reconnaissance Orbiter shows the western rim of a well-preserved 8.5-kilometer (about 5 miles) diameter impact crater.

Slumping Terraces on a Crater Wall

With its cracked, blistery appearance, this mound near the center of a very large, over 5-kilometer diameter mid-latitude crater poses an interesting question: how did this form? This image is from NASA's Mars Reconnaissance Orbiter.
With its cracked, blistery appearance, this mound near the center of a very large, over 5-kilometer diameter mid-latitude crater poses an interesting question: how did this form? This image is from NASA's Mars Reconnaissance Orbiter.

An Unusual Mound

Nili Fossae, once considered a potential landing spot for the Mars Science Laboratory, has one of the largest, most diverse exposures of clay minerals as seen by NASA's Mars Reconnaissance Orbiter.
Nili Fossae, once considered a potential landing spot for the Mars Science Laboratory, has one of the largest, most diverse exposures of clay minerals as seen by NASA's Mars Reconnaissance Orbiter.

A Large, Banded Angular Fragment in Nili Fossae

As rivers age they can meander and occasionally these meanders get so pronounced that the river cuts off these curving loops at their narrow end leaving them as isolated as oxbow lakes. Image from NASA's Mars Reconnaissance Orbiter.
As rivers age they can meander and occasionally these meanders get so pronounced that the river cuts off these curving loops at their narrow end leaving them as isolated as oxbow lakes. Image from NASA's Mars Reconnaissance Orbiter.

Oxbows and Cutoffs in Idaeus Fossae

These craters on Tharsis are first visible as new dark spots observed by NASA's Mars Reconnaissance Orbiter's Context Camera (CTX), which can view much larger areas, and then imaged by HiRISE for a close-up look.
These craters on Tharsis are first visible as new dark spots observed by NASA's Mars Reconnaissance Orbiter's Context Camera (CTX), which can view much larger areas, and then imaged by HiRISE for a close-up look.

Knob in the South Polar Layered Deposits of Mars

This well-preserved impact crater in Tyrrhena Terra, northeast of Hellas Planitia, is approximately 6 kilometers in diameter as seen by NASA's Mars Reconnaissance Orbiter.
This well-preserved impact crater in Tyrrhena Terra, northeast of Hellas Planitia, is approximately 6 kilometers in diameter as seen by NASA's Mars Reconnaissance Orbiter.

Crater with Debris Aprons in Tyrrhena Terra

This observation from NASA's Mars Reconnaissance Orbiter shows the central hills in Hale Crater with thousands of seasonal flows on steep slopes below bedrock outcrops.
This observation from NASA's Mars Reconnaissance Orbiter shows the central hills in Hale Crater with thousands of seasonal flows on steep slopes below bedrock outcrops.

Active Slope Flows on the Central Hills of Hale Crater

A south-facing escarpment in the Northwest Hellas region that was targeted for the phyllosilicates shows instances of bluish rock in this enhanced color image taken by NASA's Mars Reconnaissance Orbiter.
A south-facing escarpment in the Northwest Hellas region that was targeted for the phyllosilicates shows instances of bluish rock in this enhanced color image taken by NASA's Mars Reconnaissance Orbiter.

Ice in a Chlorite-Bearing Escarpment in Northwest Hellas

This image from NASA's Mars Reconnaissance Orbiter shows a transect of Coprates Chasma wall stratigraphy, which includes (moving down sequence): the southern plateau, wall spurs, fans of eroded material, gullies, sand dunes, and canyon floor.
This image from NASA's Mars Reconnaissance Orbiter shows a transect of Coprates Chasma wall stratigraphy, which includes (moving down sequence): the southern plateau, wall spurs, fans of eroded material, gullies, sand dunes, and canyon floor.

Eastern Valles Marineris Bedrock Stratigraphy and Falling Dunes

With NASA's Mars Reconnaissance Orbiter HiRISE camera and its powerful resolution, other mission teams can request images of potential future landing sites on Mars.
With NASA's Mars Reconnaissance Orbiter HiRISE camera and its powerful resolution, other mission teams can request images of potential future landing sites on Mars.

A Possible Landing Site for NASA's InSight Mission

The dark features here look like raindrops, but are actually sand dunes in Copernicus Crater. This observation is from NASA's Mars Reconnaissance Orbiter.
The dark features here look like raindrops, but are actually sand dunes in Copernicus Crater. This observation is from NASA's Mars Reconnaissance Orbiter.

Raindrops of Sand in Copernicus Crater

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