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This false-color polar map was generated from images obtained by the Mars Reconnaissance Orbiter's Mars Color Imager (MARCI). It shows a large local dust storm that researchers were monitoring on May 25, 2008.
This false-color polar map was generated from images obtained by the Mars Reconnaissance Orbiter's Mars Color Imager (MARCI). It shows a large local dust storm that researchers were monitoring on May 25, 2008.

Clear Skies Ahead

This animation shows a hypothetical flyover above Victoria Crater, where NASA's Mars Exploration Rover Opportunity is perched on a rim. The rover is expected to begin rolling down into the crater in early July 2007.
This animation shows a hypothetical flyover above Victoria Crater, where NASA's Mars Exploration Rover Opportunity is perched on a rim. The rover is expected to begin rolling down into the crater in early July 2007.

Surveying the Scene Above Opportunity (Simulation)

This sprawling look at the martian landscape surrounding the Mars Exploration Rover Spirit is the first 3-D stereo image from the rover's navigation camera. 'Sleepy Hollow' can be seen to center left of the image. 3D glasses are necessary.
This sprawling look at the martian landscape surrounding the Mars Exploration Rover Spirit is the first 3-D stereo image from the rover's navigation camera. 'Sleepy Hollow' can be seen to center left of the image. 3D glasses are necessary.

First 3-D Panorama of Spirit's Landing Site

The surface textures observed in this NASA Mars Odyssey image of Ascraeus Mons are due to different volcanic flow types. Textural variations can be produced under a variety of different conditions such as varying cooling and flow rates.
The surface textures observed in this NASA Mars Odyssey image of Ascraeus Mons are due to different volcanic flow types. Textural variations can be produced under a variety of different conditions such as varying cooling and flow rates.

Ascraeus Mons

This image from NASA's Mars Odyssey spacecraft shows grooves within channels of Kasei Valles that can be interpreted as evidence for fluvial activity.
This image from NASA's Mars Odyssey spacecraft shows grooves within channels of Kasei Valles that can be interpreted as evidence for fluvial activity.

Kasei Vallis

This pair of infrared images from NASA's Mars Odyssey spacecraft shows the so-called 'face on Mars' landform viewed during both the day and night.
This pair of infrared images from NASA's Mars Odyssey spacecraft shows the so-called 'face on Mars' landform viewed during both the day and night.

The So-called "Face on Mars" at Night

Except for the loss of its ring of ejecta, the crater at the leading edge of this streamlined island in Kasei Vallis, imaged here by NASA's Mars Odyssey, shows no hint of the catastrophic floods that passed by it.
Except for the loss of its ring of ejecta, the crater at the leading edge of this streamlined island in Kasei Vallis, imaged here by NASA's Mars Odyssey, shows no hint of the catastrophic floods that passed by it.

Kasei Vallis Streamlined Island

Cerberus, seen in this image from NASA's Mars Odyssey spacecraft, is a dark region on Mars that has shrunk down from a continuous length of about 1000 km to roughly three discontinuous spots a few 100 kms in length in less than 20 years.
Cerberus, seen in this image from NASA's Mars Odyssey spacecraft, is a dark region on Mars that has shrunk down from a continuous length of about 1000 km to roughly three discontinuous spots a few 100 kms in length in less than 20 years.

Cerberus Wind Streaks

Melas Chasma is part of the Valles Marineris canyon system, the largest canyon in the Solar System. This image was taken by NASA's Mars Reconnaissance Orbiter.
Melas Chasma is part of the Valles Marineris canyon system, the largest canyon in the Solar System. This image was taken by NASA's Mars Reconnaissance Orbiter.

Finding Faults in Melas Chasma

This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.
This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.

Giant Gullies North of the Argyre Impact Basin

This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.
This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.

Shapes and Spots on a Polar Sand Dune

The formation of 'recurring slope lineae' is a fascinating process on Mars. These RSLs show up in the spring and fade in the winter as seen by NASA's Mars Reconnaissance Orbiter.
The formation of 'recurring slope lineae' is a fascinating process on Mars. These RSLs show up in the spring and fade in the winter as seen by NASA's Mars Reconnaissance Orbiter.

Slope Lineae along Coprates Chasma Ridge

This observation from NASA's Mars Reconnaissance Orbiter is of one many that highlights new discoveries; one of these is that many sand dunes and ripples are moving, some at rates of several meters per year.
This observation from NASA's Mars Reconnaissance Orbiter is of one many that highlights new discoveries; one of these is that many sand dunes and ripples are moving, some at rates of several meters per year.

Migrating and Static Sand Ripples on Mars

This basin in Ceti Mensa, as seen by by NASA's Mars Reconnaissance Orbiter, exposes concentric rings in the sedimentary layers. Dark sand ripples and textures in the bedrock suggesting wind scouring are also apparent.
This basin in Ceti Mensa, as seen by by NASA's Mars Reconnaissance Orbiter, exposes concentric rings in the sedimentary layers. Dark sand ripples and textures in the bedrock suggesting wind scouring are also apparent.

Basin in the West Candor Chasma Layered Deposits

This image shows lava crumpled against the upstream side of an impact crater as seen by NASA's Mars Reconnaissance Orbiter.
This image shows lava crumpled against the upstream side of an impact crater as seen by NASA's Mars Reconnaissance Orbiter.

Lava Against an Impact Crater in Elysium Planitia

Sunlight was just starting to reach the high Northern latitudes in late winter when NASA's Mars Reconnaissance Orbiter's HiRISE camera captured this image of part of the steep scarps around portions of the North Polar layered deposits.
Sunlight was just starting to reach the high Northern latitudes in late winter when NASA's Mars Reconnaissance Orbiter's HiRISE camera captured this image of part of the steep scarps around portions of the North Polar layered deposits.

Diffuse Winter Lighting of the Chasma Boreale Scarp

The white portions of this observation are part of the South Polar residual ice cap, with the sunlight is coming from roughly the bottom of this non-map projected image captured by NASA's Mars Reconnaissance Orbiter.
The white portions of this observation are part of the South Polar residual ice cap, with the sunlight is coming from roughly the bottom of this non-map projected image captured by NASA's Mars Reconnaissance Orbiter.

Polygonal Surface Patterns at the South Pole

Terby Crater, sitting on the northern rim of Hellas Basin, has been filled by sedimentary deposits, perhaps deposited by or in water, as observed by NASA's Mars Reconnaissance Orbiter.
Terby Crater, sitting on the northern rim of Hellas Basin, has been filled by sedimentary deposits, perhaps deposited by or in water, as observed by NASA's Mars Reconnaissance Orbiter.

Sedimentary Bedrock Diversity in Terby Crater

Numerous dark slope streaks mark the rim of this unnamed crater located on the rim of Henry Crater in this image taken by NASA's 2001 Mars Odyssey spacecraft.
Numerous dark slope streaks mark the rim of this unnamed crater located on the rim of Henry Crater in this image taken by NASA's 2001 Mars Odyssey spacecraft.

Dark Slope Streaks

This image, taken by NASA's 2001 Mars Odyssey spacecraft, shows multiple craters with windstreak 'tails.'
This image, taken by NASA's 2001 Mars Odyssey spacecraft, shows multiple craters with windstreak 'tails.'

Windstreaks

NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this 360-degree cylindrical view of the rover's surroundings on the 1,950th Martian day, or sol, of its surface mission (July 19, 2009).
NASA's Mars Exploration Rover Opportunity used its navigation camera to take the images combined into this 360-degree cylindrical view of the rover's surroundings on the 1,950th Martian day, or sol, of its surface mission (July 19, 2009).

Opportunity's Surroundings on Sol 1950

The tilt of Mars' spin axis (obliquity) varies cyclically over hundreds of thousands of years, and affects the sunlight falling on the poles.
The tilt of Mars' spin axis (obliquity) varies cyclically over hundreds of thousands of years, and affects the sunlight falling on the poles.

Mars Obliquity Cycle Illustration

This view combines more than 500 images taken after NASA's Phoenix Mars Lander arrived on an arctic plain at 68.22 degrees north latitude, 234.25 degrees east longitude on Mars.
This view combines more than 500 images taken after NASA's Phoenix Mars Lander arrived on an arctic plain at 68.22 degrees north latitude, 234.25 degrees east longitude on Mars.

Full-Circle Color Panorama of Phoenix Lander Deck and Landing Site on Northern Mars, Animation

This anaglyph, acquired by NASA's Phoenix Lander on Jun. 19, 2008, shows a stereoscopic 3D view of the Martian surface near the lander. 3D glasses are necessary to view this image.
This anaglyph, acquired by NASA's Phoenix Lander on Jun. 19, 2008, shows a stereoscopic 3D view of the Martian surface near the lander. 3D glasses are necessary to view this image.

Martian Surface as Seen by Phoenix

This anaglyph, acquired by NASA's Phoenix Lander on Jun. 7, 2008, shows a stereoscopic 3D view of the Martian surface near the lander. 3D glasses are necessary to view this image.
This anaglyph, acquired by NASA's Phoenix Lander on Jun. 7, 2008, shows a stereoscopic 3D view of the Martian surface near the lander. 3D glasses are necessary to view this image.

Martian Surface as Seen by Phoenix

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