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The channels and impact crater rim shown in this NASA Mars Odyssey image provide insight to the forces that have sculpted the surface within the extensive Reull Vallis network.
The channels and impact crater rim shown in this NASA Mars Odyssey image provide insight to the forces that have sculpted the surface within the extensive Reull Vallis network.

Reull Vallis

This nighttime temperature image from NASA's Mars Odyssey spacecraft shows the ancient, heavily cratered surface of the highlands between Isidis and Elysium Planitia.
This nighttime temperature image from NASA's Mars Odyssey spacecraft shows the ancient, heavily cratered surface of the highlands between Isidis and Elysium Planitia.

Martian Highlands at Night in Infrared

With a location roughly equidistant between two of the largest volcanic constructs on the planet, the fate of the approximately 50 km (31 mile) impact crater in this image from NASA's Mars Odyssey was sealed. It has been buried to the rim by lava flows.
With a location roughly equidistant between two of the largest volcanic constructs on the planet, the fate of the approximately 50 km (31 mile) impact crater in this image from NASA's Mars Odyssey was sealed. It has been buried to the rim by lava flows.

Buried Crater

Kasei Valles is one of the largest outflow channels on Mars. This NASA Mars Odyssey image is of the northern branch of Kasei Valles and shows the channel floor and northern channel wall.
Kasei Valles is one of the largest outflow channels on Mars. This NASA Mars Odyssey image is of the northern branch of Kasei Valles and shows the channel floor and northern channel wall.

Kasei Valles

This image from NASA's Mars Odyssey shows Noctis Labyrinthus, a large valley system at the western end of the Valles Marineris canyon system notable for a pattern of intersecting valleys, which give it a maze-like appearance when viewed from above.
This image from NASA's Mars Odyssey shows Noctis Labyrinthus, a large valley system at the western end of the Valles Marineris canyon system notable for a pattern of intersecting valleys, which give it a maze-like appearance when viewed from above.

Noctis Labyrinthus

Dark streaks mark the inner rim of this unnamed crater in Terra Sabaea as seen by NASA's 2001 Mars Odyssey spacecraft.
Dark streaks mark the inner rim of this unnamed crater in Terra Sabaea as seen by NASA's 2001 Mars Odyssey spacecraft.

Dark Slope Streaks

Located at 64 degrees south latitude, the dunes in Wegener Crater are just beginning to lose their frost cover. The 'salt and pepper' appearance is bright frost and dark dune on the crater floor in this image from NASA's Mars Odyssey.
Located at 64 degrees south latitude, the dunes in Wegener Crater are just beginning to lose their frost cover. The 'salt and pepper' appearance is bright frost and dark dune on the crater floor in this image from NASA's Mars Odyssey.

Wegener Crater Dunes

Dunes are found on the floor of this unnamed crater located on the margin between Arabia Terra and Terra Sabaea in this image from NASA's 2001 Mars Odyssey spacecraft.
Dunes are found on the floor of this unnamed crater located on the margin between Arabia Terra and Terra Sabaea in this image from NASA's 2001 Mars Odyssey spacecraft.

Crater Dunes

This infrared image, taken by NASA's 2001 Mars Odyssey spacecraft, shows the feature called 'White Rock.' The feature is dark, indicating that it is cooler than the surroundings.
This infrared image, taken by NASA's 2001 Mars Odyssey spacecraft, shows the feature called 'White Rock.' The feature is dark, indicating that it is cooler than the surroundings.

Pollack Crater

Small channels dissect the rim of Bakhuysen Crater in Noachis Terra as seen by NASA's 2001 Mars Odyssey.
Small channels dissect the rim of Bakhuysen Crater in Noachis Terra as seen by NASA's 2001 Mars Odyssey.

Channels in Noachis Terra

This image from NASA's 2001 Mars Odyssey spacecraft shows lava flows terminating at the foot of canyon walls in Echus Chasma. These lava flows are also fractured into large plates in this region.
This image from NASA's 2001 Mars Odyssey spacecraft shows lava flows terminating at the foot of canyon walls in Echus Chasma. These lava flows are also fractured into large plates in this region.

Echus Chasma

This image from NASA's 2001 Mars Odyssey spacecraf shows part of Aspledon Undae, one of several dune fields near the north pole. The term Undae means dunes.
This image from NASA's 2001 Mars Odyssey spacecraf shows part of Aspledon Undae, one of several dune fields near the north pole. The term Undae means dunes.

Polar Dunes

This image shows a different part of Utopia Planitia than yesterday's image. Both are marked with hundreds of dust devil tracks as seen by by NASA's 2001 Mars Odyssey spacecraft.
This image shows a different part of Utopia Planitia than yesterday's image. Both are marked with hundreds of dust devil tracks as seen by by NASA's 2001 Mars Odyssey spacecraft.

More Dust Devils

This image, taken by NASA's 2001 Mars Odyssey spacecraft, shows a portion of the lava flows associated with Arsia Mons.
This image, taken by NASA's 2001 Mars Odyssey spacecraft, shows a portion of the lava flows associated with Arsia Mons.

Arsia Mons Flows

This image captured by NASA's 2001 Mars Odyssey spacecraft shows part of the margin of Olympia Undae.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows part of the margin of Olympia Undae.

Olympia Undae

This image shows the location (green) where scientists estimate NASA's Curiosity rover landed on Mars within Gale Crater, based on images from the Mars Descent Imager (MARDI).
This image shows the location (green) where scientists estimate NASA's Curiosity rover landed on Mars within Gale Crater, based on images from the Mars Descent Imager (MARDI).

Narrowing in on Curiosity's Landing Site

The dunes in this image captured by NASA's 2001 Mars Odyssey spacecraft are located in an unnamed crater in Sisyphi Planum.
The dunes in this image captured by NASA's 2001 Mars Odyssey spacecraft are located in an unnamed crater in Sisyphi Planum.

Dunes in Sisyphi Planum

This particular area, called Mangala Valles and located near the Tharsis region, may be an example of the action of liquid water in the ancient Martian past. This image is from NASA's Mars Reconnaissance Orbiter.
This particular area, called Mangala Valles and located near the Tharsis region, may be an example of the action of liquid water in the ancient Martian past. This image is from NASA's Mars Reconnaissance Orbiter.

Enigmatic Channels on the Floor of Mangala Valles

This image from NASA's 2001 Mars Odyssey spacecraft shows part of Coprates Chasma, which is just one part of the extensive Valles Marineris canyon system.
This image from NASA's 2001 Mars Odyssey spacecraft shows part of Coprates Chasma, which is just one part of the extensive Valles Marineris canyon system.

Coprates Chasma

Innumerable lava flows from Arsia Mons make up the volcanic plains called Daedalia Planum as seen by NASA's 2001 Mars Odyssey.
Innumerable lava flows from Arsia Mons make up the volcanic plains called Daedalia Planum as seen by NASA's 2001 Mars Odyssey.

Daedalia Planum

This image from NASA's 2001 Mars Odyssey shows a huge ridge of sand in Russell Crater that makes its dune field one of the most unusual on Mars.
This image from NASA's 2001 Mars Odyssey shows a huge ridge of sand in Russell Crater that makes its dune field one of the most unusual on Mars.

Russell Crater Dunes

This two-image blink shows a comparison of two exposure times in images from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity showing comet C/2013 A1 Siding Spring as it flew near Mars on Oct. 19, 2014.
This two-image blink shows a comparison of two exposure times in images from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity showing comet C/2013 A1 Siding Spring as it flew near Mars on Oct. 19, 2014.

Mars Rover Opportunity's View of Comet (Blink of Two Exposures)

Near the bottom of this nighttime image captured by NASA's 2001 Mars Odyssey spacecraft are several channels. The dusty channel floors are darker (colder) than the rocky walls.
Near the bottom of this nighttime image captured by NASA's 2001 Mars Odyssey spacecraft are several channels. The dusty channel floors are darker (colder) than the rocky walls.

Channel at Night

This image from NASA's 2001 Mars Odyssey spacecraft shows a small portion of the lava flows that comprise Daedalia Planum.
This image from NASA's 2001 Mars Odyssey spacecraft shows a small portion of the lava flows that comprise Daedalia Planum.

Daedalia Planum

Today's image from NASA's 2001 Mars Odyssey spacecraftshows a small portion of Kasei Valles, one of the largest channel systems on Mars.
Today's image from NASA's 2001 Mars Odyssey spacecraftshows a small portion of Kasei Valles, one of the largest channel systems on Mars.

Kasei Valles

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