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The dunes in this image captured by NASA's 2001 Mars Odyssey spacecraft are located right at the edge of the polar cap.
The dunes in this image captured by NASA's 2001 Mars Odyssey spacecraft are located right at the edge of the polar cap.

Polar Dunes

This image from NASA's Mars Reconnaissance Orbiter shows a 3-kilometer-wide impact crater with gullies all along the steep inner slopes.
This image from NASA's Mars Reconnaissance Orbiter shows a 3-kilometer-wide impact crater with gullies all along the steep inner slopes.

Equatorial Gullies on Mars

Today's image shows the eastern portion of the complex caldera at the summit of Olympus Mon as seen by NASA's 2001 Mars Odyssey spacecraft.
Today's image shows the eastern portion of the complex caldera at the summit of Olympus Mon as seen by NASA's 2001 Mars Odyssey spacecraft.

Olympus Mons Summit

This illustration shows the instruments and subsystems of the Sample Analysis at Mars (SAM) suite on the Curiosity Rover of NASA's Mars Science Laboratory Project. SAM analyzes the gases in the Martian atmosphere.
This illustration shows the instruments and subsystems of the Sample Analysis at Mars (SAM) suite on the Curiosity Rover of NASA's Mars Science Laboratory Project. SAM analyzes the gases in the Martian atmosphere.

The SAM Suite

This set of images illustrates how the science filters of the Mast Camera (Mastcam) on NASA's Mars rover Curiosity can be used to investigate aspects of the composition and mineralogy of materials on Mars.
This set of images illustrates how the science filters of the Mast Camera (Mastcam) on NASA's Mars rover Curiosity can be used to investigate aspects of the composition and mineralogy of materials on Mars.

Comparing Mastcam and Laboratory Spectra

This image from NASA's 2001 Mars Odyssey spacecraft shows lava flows from Arsia Mons.
This image from NASA's 2001 Mars Odyssey spacecraft shows lava flows from Arsia Mons.

Arsia Mons Flows

Surface textures vary in relation to topography on the south polar cap. Trough sides and floors are different from the flat top surface of the cap. This image was captured by NASA's Mars Odyssey.
Surface textures vary in relation to topography on the south polar cap. Trough sides and floors are different from the flat top surface of the cap. This image was captured by NASA's Mars Odyssey.

South Polar Surface

Large fractures have formed 'steps' in this region of Tempe Terra as seen by NASA's Mars Odyssey.
Large fractures have formed 'steps' in this region of Tempe Terra as seen by NASA's Mars Odyssey.

Tempe Terra

This image from NASA's Mars Reconnaissance Rover shows a degraded impact crater in the southern highlands. Part of the crater rim is visible at the top and bottom of the image, with the boulder-covered crater floor in the center.
This image from NASA's Mars Reconnaissance Rover shows a degraded impact crater in the southern highlands. Part of the crater rim is visible at the top and bottom of the image, with the boulder-covered crater floor in the center.

Bouldery Deposit on Crater Floor

The Chemistry and Camera (ChemCam) instrument on NASA's Mars rover Curiosity used its laser to examine side-by-side points in a target patch of soil, leaving the marks apparent in this before-and-after comparison.
The Chemistry and Camera (ChemCam) instrument on NASA's Mars rover Curiosity used its laser to examine side-by-side points in a target patch of soil, leaving the marks apparent in this before-and-after comparison.

Marks of Laser Exam on Martian Soil

The windstreaks in this image captured by NASA's 2001 Mars Odyssey spacecraft are located on the volcanic plains northeast of Olympus Mons.
The windstreaks in this image captured by NASA's 2001 Mars Odyssey spacecraft are located on the volcanic plains northeast of Olympus Mons.

Windstreaks

This wide-view picture of a heart-shaped feature in Arabia Terra on Mars was taken on May 23, 2010, by NASA's Mars Reconnaissance Orbiter. A small impact crater near the tip of the heart is responsible for the formation of the bright, heart-shaped feature
This wide-view picture of a heart-shaped feature in Arabia Terra on Mars was taken on May 23, 2010, by NASA's Mars Reconnaissance Orbiter. A small impact crater near the tip of the heart is responsible for the formation of the bright, heart-shaped feature

Heart-Shaped Feature in Arabia Terra (Wide View)

This false color view, called the 'McMurdo' panorama, from NASA's Mars Exploration Rover Spirit, where the rover stayed on a small hill known as 'Low Ridge' from April through October 2006.
This false color view, called the 'McMurdo' panorama, from NASA's Mars Exploration Rover Spirit, where the rover stayed on a small hill known as 'Low Ridge' from April through October 2006.

Spirit Mars Rover in 'McMurdo' Panorama (False Color)

Numerous layers within Burroughs Crater are visible in this image captured by NASA's 2001 Mars Odyssey spacecraft.
Numerous layers within Burroughs Crater are visible in this image captured by NASA's 2001 Mars Odyssey spacecraft.

Layers

This image captured by NASA's 2001 Mars Odyssey spacecraft shows a small portion of the extensive lava flows of the Tharsis volcanic region.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows a small portion of the extensive lava flows of the Tharsis volcanic region.

Volcanic Flows

The lava flows in this image from NASA's 2001 Mars Odyssey spacecraft most likely originated from Ascraeus Mons, one of the large Tharsis volcanos.
The lava flows in this image from NASA's 2001 Mars Odyssey spacecraft most likely originated from Ascraeus Mons, one of the large Tharsis volcanos.

Lava Flows

The small unnamed channels in this image captured by NASA's 2001 Mars Odyssey spacecraft are located on the northeastern margin of Tempe Terra.
The small unnamed channels in this image captured by NASA's 2001 Mars Odyssey spacecraft are located on the northeastern margin of Tempe Terra.

Channels

This frame from an artist's animation shows how NASA's Curiosity rover will communicate with Earth via two of NASA's Mars orbiters, Mars Reconnaissance Orbiter and Odyssey.
This frame from an artist's animation shows how NASA's Curiosity rover will communicate with Earth via two of NASA's Mars orbiters, Mars Reconnaissance Orbiter and Odyssey.

Communicating with Curiosity

Daedalia Planum is comprised of enormous amounts of lava flows, the majority of which appear to be related to Arsia Mons. In this image from NASA's 2001 Mars Odyssey spacecraft, multiple overlapping flows are evident.
Daedalia Planum is comprised of enormous amounts of lava flows, the majority of which appear to be related to Arsia Mons. In this image from NASA's 2001 Mars Odyssey spacecraft, multiple overlapping flows are evident.

Daedalia Planum

The unnamed channels in this image captured by NASA's 2001 Mars Odyssey spacecraft are located in Arabia Terra.
The unnamed channels in this image captured by NASA's 2001 Mars Odyssey spacecraft are located in Arabia Terra.

Channels

This stereo view from NASA's Mars Exploration Rover Opportunity looks upward at 'Knudsen Ridge' on the southern edge of 'Marathon Valley' from inside the valley. You need 3-D glasses to view this image.
This stereo view from NASA's Mars Exploration Rover Opportunity looks upward at 'Knudsen Ridge' on the southern edge of 'Marathon Valley' from inside the valley. You need 3-D glasses to view this image.

Steep 'Knudsen Ridge' Along 'Marathon Valley' on Mars (Stereo)

This full-circle panorama of the landscape surrounding NASA's Curiosity Mars rover on July 31, 2014, offers a view into sandy lower terrain called 'Hidden Valley'
This full-circle panorama of the landscape surrounding NASA's Curiosity Mars rover on July 31, 2014, offers a view into sandy lower terrain called 'Hidden Valley'

Curiosity's 360-Degree View Before Entering 'Hidden Valley'

NASA's Mars Exploration Rover Spirit recorded this fisheye view after completing a drive during on Mars on Feb. 8, 2010. The drive left Spirit in the position where the rover will stay parked during the upcoming Mars southern-hemisphere winter.
NASA's Mars Exploration Rover Spirit recorded this fisheye view after completing a drive during on Mars on Feb. 8, 2010. The drive left Spirit in the position where the rover will stay parked during the upcoming Mars southern-hemisphere winter.

Spirit's Rear View After Parking for Fourth Winter

This image from NASA's Mars Odyssey spacecraft shows the western rim of Gale Crater. Several channels dissect the rim of the crater.
This image from NASA's Mars Odyssey spacecraft shows the western rim of Gale Crater. Several channels dissect the rim of the crater.

Images of Gale #22

These images, made from data obtained by Curiosity's CheMin, show the patterns obtained from a drift of windblown dust and sand called 'Rocknest' and from a powdered rock sample drilled from the 'John Klein' bedrock.
These images, made from data obtained by Curiosity's CheMin, show the patterns obtained from a drift of windblown dust and sand called 'Rocknest' and from a powdered rock sample drilled from the 'John Klein' bedrock.

Minerals at 'Rocknest' and 'John Klein'

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