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This image from NASA's Mars Reconnaissance Orbiter is part of a proposed landing site in Aram Dorsum for the ExoMars Rover, planned for launch in 2018. Upper layers of light toned sediments have been eroded, leaving a lower surface which appears dark.
This image from NASA's Mars Reconnaissance Orbiter is part of a proposed landing site in Aram Dorsum for the ExoMars Rover, planned for launch in 2018. Upper layers of light toned sediments have been eroded, leaving a lower surface which appears dark.

A Possible Landing Site for the ExoMars Rover in Aram Dorsum

This image is of a portion of the Southern plains region within Hellas, the largest impact basin on Mars, with a diameter of about 2300 kilometers (1400 miles), as observed by NASA's Mars Reconnaissance Orbiter.
This image is of a portion of the Southern plains region within Hellas, the largest impact basin on Mars, with a diameter of about 2300 kilometers (1400 miles), as observed by NASA's Mars Reconnaissance Orbiter.

Pitted Landforms in Southern Hellas Planitia

This image from NASA's Mars Reconnaissance Orbiter shows dark dunes in the western Medusae Fossae. This image shows no large dunes, but many of the dark sand patches cover slopes up to discrete layers.
This image from NASA's Mars Reconnaissance Orbiter shows dark dunes in the western Medusae Fossae. This image shows no large dunes, but many of the dark sand patches cover slopes up to discrete layers.

Dunes in Western Medusae Fossae Formation

In this observation from NASA's Mars Reconnaissance Orbiter made for a study of ancient craters, we see the craters filled with smooth material that has subsequently degraded into scallops. These formations might be possibly due to ground ice sublimation.
In this observation from NASA's Mars Reconnaissance Orbiter made for a study of ancient craters, we see the craters filled with smooth material that has subsequently degraded into scallops. These formations might be possibly due to ground ice sublimation.

Filled Crater and Scallops

This image from NASA's Mars Reconnaissance Orbiter shows several seemingly active gullies and their associated fans near the Argyre region.
This image from NASA's Mars Reconnaissance Orbiter shows several seemingly active gullies and their associated fans near the Argyre region.

Gullies Old and New Near the Argyre Region

Data graphed here are examples from the Sample Analysis at Mars (SAM) laboratory's detection of Martian organics in a sample of powder that the drill on NASA's Curiosity Mars rover collected from a rock target called 'Cumberland.'
Data graphed here are examples from the Sample Analysis at Mars (SAM) laboratory's detection of Martian organics in a sample of powder that the drill on NASA's Curiosity Mars rover collected from a rock target called 'Cumberland.'

Some Data from Detection of Organics in a Rock on Mars

By measuring absorption of light at specific wavelengths, Tunable Laser Spectrometer (TLS) onboard NASA's Curiosity measures concentrations of methane, carbon dioxide and water vapor in Mars' atmosphere.
By measuring absorption of light at specific wavelengths, Tunable Laser Spectrometer (TLS) onboard NASA's Curiosity measures concentrations of methane, carbon dioxide and water vapor in Mars' atmosphere.

Tunable Laser Spectrometer on NASA's Curiosity Mars Rover

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

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