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As NASA's Mars rover Curiosity is progressing toward Mount Sharp, researchers are using the rover's RIM and ChemCam instruments to examine soils and rocks in Gale Crater.
As NASA's Mars rover Curiosity is progressing toward Mount Sharp, researchers are using the rover's RIM and ChemCam instruments to examine soils and rocks in Gale Crater.

Crystal-Laden Martian Rock Examined by Curiosity's Laser Instrument

This daytime IR image shows part of Nanedi Vallis as seen by NASA's 2001 Mars Odyssey spacecraft.
This daytime IR image shows part of Nanedi Vallis as seen by NASA's 2001 Mars Odyssey spacecraft.

Nanedi Valles

This image from NASA's 2001 Mars Odyssey spacecraft shows a very small portion of the lava flows that originated from Arsia Mons -- a pre-existing crater has been filled, with only small sections of its rim still visible above the level of the lava.
This image from NASA's 2001 Mars Odyssey spacecraft shows a very small portion of the lava flows that originated from Arsia Mons -- a pre-existing crater has been filled, with only small sections of its rim still visible above the level of the lava.

Arsia Mons Flows

This small group of dunes in located within Kasei Valles. This image from NASA's Mars Odyssey was captured on June 16, 2010.
This small group of dunes in located within Kasei Valles. This image from NASA's Mars Odyssey was captured on June 16, 2010.

Kasei Valles Dunes

At eastern end of Valles Marineris is Eos Chasma. In Eos, the canyon system transitions into a region of chaos and then into major outflow channels. This image from NASA's 2001 Mars Odyssey shows the transition into chaos.
At eastern end of Valles Marineris is Eos Chasma. In Eos, the canyon system transitions into a region of chaos and then into major outflow channels. This image from NASA's 2001 Mars Odyssey shows the transition into chaos.

Eos Chasma

This image captured by NASA's Mars Odyssey shows a portion of the dunes located in the floor of Kaiser Crater.
This image captured by NASA's Mars Odyssey shows a portion of the dunes located in the floor of Kaiser Crater.

Kaiser Crater Dunes

The fracture system in this image, captured by NASA's 2001 Mars Odyssey, is part of Galaxias Fossae, a series of fractures on the northern part of the Elysium Mons volcanic complex.
The fracture system in this image, captured by NASA's 2001 Mars Odyssey, is part of Galaxias Fossae, a series of fractures on the northern part of the Elysium Mons volcanic complex.

Galaxias Fossae

The channels in this image from NASA's 2001 Mars Odyssey spacecraft are draining a highstanding region north of Hellas Planum.
The channels in this image from NASA's 2001 Mars Odyssey spacecraft are draining a highstanding region north of Hellas Planum.

Channels

The surface beneath the south polar cap as seen by NASA's 2001 Mars Odyssey spacecraft at the highest latitude in Chasma Australe.
The surface beneath the south polar cap as seen by NASA's 2001 Mars Odyssey spacecraft at the highest latitude in Chasma Australe.

Chasma Australe

This image from NASA's 2001 Mars Odyssey shows a small portion of the complex channel system, Kasei Valles. In this image, secondary channeling has cut down deeper into the main channel.
This image from NASA's 2001 Mars Odyssey shows a small portion of the complex channel system, Kasei Valles. In this image, secondary channeling has cut down deeper into the main channel.

Kasei Valles

The channels and depressions seen in this image from NASA's 2001 Mars Odyssey spacecraft are part of Gordii Fossae, located on the volcanic plains between Olympus Mons and Gigas Sulci.
The channels and depressions seen in this image from NASA's 2001 Mars Odyssey spacecraft are part of Gordii Fossae, located on the volcanic plains between Olympus Mons and Gigas Sulci.

Gordii Fossae

This triangle plot shows the relative concentrations of some of the major chemical elements in the Martian rock
This triangle plot shows the relative concentrations of some of the major chemical elements in the Martian rock

Chemistry of Martian Rock 'Esperance'

This image from NASA's 2001 Mars Odyssey spacecraft shows dark slope streaks in an unnamed crater in Terra Sabaea. These features are believed to be formed by material moving downslope, removing the dust cover and revealing darker material.
This image from NASA's 2001 Mars Odyssey spacecraft shows dark slope streaks in an unnamed crater in Terra Sabaea. These features are believed to be formed by material moving downslope, removing the dust cover and revealing darker material.

Dark Slope Streaks

The dunes in this daytime IR image from NASA's 2001 Mars Odyssey spacecraft appear bright because they are warmer than the surrounding crater materials. These dunes are located on the floor of Proctor Crater.
The dunes in this daytime IR image from NASA's 2001 Mars Odyssey spacecraft appear bright because they are warmer than the surrounding crater materials. These dunes are located on the floor of Proctor Crater.

Proctor Crater Dunes

The small channel in this image from NASA's 2001 Mars Odyssey spacecraft runs semi-parallel to Shalbatana Vallis in Xanthe Terra.
The small channel in this image from NASA's 2001 Mars Odyssey spacecraft runs semi-parallel to Shalbatana Vallis in Xanthe Terra.

Channel

The volcanic flows that comprise Daedalia Planum arose from Arsia Mons. This image from NASA's 2001 Mars Odyssey spacecraft shows a small portion of Daedalia Planum, including a channel-fed lava flow.
The volcanic flows that comprise Daedalia Planum arose from Arsia Mons. This image from NASA's 2001 Mars Odyssey spacecraft shows a small portion of Daedalia Planum, including a channel-fed lava flow.

Daedalia Planum

As the sun warms the surface and more frost is removed, the dunes and other features near the north pole of Mars are revealed. This image from NASA's Mars Odyssey shows that the inter-dune areas are complex.
As the sun warms the surface and more frost is removed, the dunes and other features near the north pole of Mars are revealed. This image from NASA's Mars Odyssey shows that the inter-dune areas are complex.

North Polar Dunes

This image from NASA's Mars Odyssey is an unnamed crater in the far northern lowlands containing a sand sheet with dune forms on its floor. Many craters this close to the pole contain similar dune fields.
This image from NASA's Mars Odyssey is an unnamed crater in the far northern lowlands containing a sand sheet with dune forms on its floor. Many craters this close to the pole contain similar dune fields.

Dunes

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 part of the flank of Hecates Tholus.
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 part of the flank of Hecates Tholus.

Hecates Tholus - False Color

The depression in the center of this image captured by NASA's 2001 Mars Odyssey spacecraft is a graben (fault bounded block of material). This graben is called Mangala Fossa.
The depression in the center of this image captured by NASA's 2001 Mars Odyssey spacecraft is a graben (fault bounded block of material). This graben is called Mangala Fossa.

Mangala Fossa

This image captured by NASA's 2001 Mars Odyssey spacecraft shows the layering of the north polar cap.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows the layering of the north polar cap.

Polar Layers

Eridania Basin, located at the head of Ma'adim Vallis, has mounting geomorphic and spectral evidence that it may have been the site of an ancient inland sea. This image is from NASA's Mars Reconnaissance Orbiter.
Eridania Basin, located at the head of Ma'adim Vallis, has mounting geomorphic and spectral evidence that it may have been the site of an ancient inland sea. This image is from NASA's Mars Reconnaissance Orbiter.

Ridges in Eridania Basin

This complex channel is located in the Nili Fossae region as seen by NASA's 2001 Mars Odyssey spacecraft.
This complex channel is located in the Nili Fossae region as seen by NASA's 2001 Mars Odyssey spacecraft.

Channel

With summer fast approaching, the frost has sublimated away and the layers that make up the north polar cap are easily discernable, as seen by NASA's 2001 Mars Odyssey spacecraft.
With summer fast approaching, the frost has sublimated away and the layers that make up the north polar cap are easily discernable, as seen by NASA's 2001 Mars Odyssey spacecraft.

Spring at the North Pole

Following the dunes eastward, we find several channels dissecting the crater rim in this image from NASA's Mars Odyssey spacecraft. These channels may be the source of material for the sand dunes.
Following the dunes eastward, we find several channels dissecting the crater rim in this image from NASA's Mars Odyssey spacecraft. These channels may be the source of material for the sand dunes.

Images of Gale #30

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