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On the west (left) side of this image from NASA's Mars Reconnaissance Orbiter, fairly textbook-looking barchan sand dunes sit atop the bedrock. In between these opposing barchan dunes are star dunes.
On the west (left) side of this image from NASA's Mars Reconnaissance Orbiter, fairly textbook-looking barchan sand dunes sit atop the bedrock. In between these opposing barchan dunes are star dunes.

Opposing Dunes, Opposing Winds

This image captured by NASA's 2001 Mars Odyssey spacecraft shows the central part of the dune field on the floor of Russell Crater.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows the central part of the dune field on the floor of Russell Crater.

Investigating Mars: Russell Crater

This look ahead from NASA's Curiosity Mars rover includes four geological layers to be examined by the mission, and higher reaches of Mount Sharp beyond the planned study area.
This look ahead from NASA's Curiosity Mars rover includes four geological layers to be examined by the mission, and higher reaches of Mount Sharp beyond the planned study area.

View Toward 'Vera Rubin Ridge' on Mount Sharp, Mars

This image captured by NASA's 2001 Mars Odyssey spacecraft shows more of the variety of textures on the south polar cap.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows more of the variety of textures on the south polar cap.

More Polar Textures

This graphic shows the route that NASA's Mars Exploration Rover Opportunity drove in its final approach to 'Perseverance Valley' on the western rim of Endeavour Crater.
This graphic shows the route that NASA's Mars Exploration Rover Opportunity drove in its final approach to 'Perseverance Valley' on the western rim of Endeavour Crater.

From 'Tribulation' to 'Perseverance' on Mars

This view from the NASA's Curiosity Mars rover shows two scales of ripples, plus other textures, in an area where the mission examined a linear-shaped dune in the Bagnold dune field on lower Mount Sharp.
This view from the NASA's Curiosity Mars rover shows two scales of ripples, plus other textures, in an area where the mission examined a linear-shaped dune in the Bagnold dune field on lower Mount Sharp.

Textures Where Curiosity Rover Studied a Martian Dune

This orbital image from NASA's Mars Reconnaissance Orbiter is of the western rim of Mars' Endeavour Crater where the Opportunity rover will investiage whethere the valley was carved by water, wind, or debris flow.
This orbital image from NASA's Mars Reconnaissance Orbiter is of the western rim of Mars' Endeavour Crater where the Opportunity rover will investiage whethere the valley was carved by water, wind, or debris flow.

Segments on Western Rim of Endeavour Crater, Mars

Oxia Planum is an ancient (Noachian epoch) terrain situated to the east of Chryse Planitia at about 18 degrees north. This image from NASA's Mars Reconnaissance Orbiter is of a proposed ExoMars Landing Site.
Oxia Planum is an ancient (Noachian epoch) terrain situated to the east of Chryse Planitia at about 18 degrees north. This image from NASA's Mars Reconnaissance Orbiter is of a proposed ExoMars Landing Site.

Clay-Rich Terrain in Oxia Planum: A Proposed ExoMars Landing Site

This scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity catches 'Pillinger Point,' on the western rim of Endeavour Crater, in the foreground.
This scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity catches 'Pillinger Point,' on the western rim of Endeavour Crater, in the foreground.

'Pillinger Point' Overlooking Endeavour Crater on Mars

The channel crossing this image from NASA's 2001 Mars Odyssey spacecraft is called Ma'adim Valles.
The channel crossing this image from NASA's 2001 Mars Odyssey spacecraft is called Ma'adim Valles.

Ma'adim Valles

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took two images of the larger of Mars' two moons, Phobos, within 10 minutes of each other on March 23, 2008. This is the first.
The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took two images of the larger of Mars' two moons, Phobos, within 10 minutes of each other on March 23, 2008. This is the first.

Phobos from 6,800 Kilometers (Color)

NASA's Earth-orbiting Hubble Space Telescope took the picture on June 26, 2001 when Mars was approximately 43 million miles (68 million km) from Earth -- the closest Mars has ever been to Earth since 1988.
NASA's Earth-orbiting Hubble Space Telescope took the picture on June 26, 2001 when Mars was approximately 43 million miles (68 million km) from Earth -- the closest Mars has ever been to Earth since 1988.

Mars at 43 Million Miles From Earth

This image of Moreux Crater captured by NASA's 2001 Mars Odyssey spacecraft is dominated by the central peak. There are sand dunes on the right side of the image. Moreux Crater is located in northern Arabia Terra.
This image of Moreux Crater captured by NASA's 2001 Mars Odyssey spacecraft is dominated by the central peak. There are sand dunes on the right side of the image. Moreux Crater is located in northern Arabia Terra.

Investigating Mars: Moreux Crater

This image from NASA's 2001 Mars Odyssey spacecraft shows part of the smaller summit caldera of Pavonis Mons. This caldera is approximately 5km deep. Pavonis Mons is one of the three aligned Tharsis Volcanoes.
This image from NASA's 2001 Mars Odyssey spacecraft shows part of the smaller summit caldera of Pavonis Mons. This caldera is approximately 5km deep. Pavonis Mons is one of the three aligned Tharsis Volcanoes.

Investigating Mars: Pavonis Mons

Colors in this image of the Martian moon Phobos indicate a range of surface temperatures detected by observing the moon on Sept. 29, 2017, with the Thermal Emission Imaging System (THEMIS) camera on NASA's Mars Odyssey orbiter.
Colors in this image of the Martian moon Phobos indicate a range of surface temperatures detected by observing the moon on Sept. 29, 2017, with the Thermal Emission Imaging System (THEMIS) camera on NASA's Mars Odyssey orbiter.

Martian Moon Phobos in Thermal Infrared Image

These profiles show the brightness of aurora emission in Mars' atmosphere at different altitudes. The data are from observations by the Imaging Ultraviolet Spectrograph instrument (IUVS) on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN.
These profiles show the brightness of aurora emission in Mars' atmosphere at different altitudes. The data are from observations by the Imaging Ultraviolet Spectrograph instrument (IUVS) on NASA's Mars Atmosphere and Volatile Evolution orbiter, or MAVEN.

Martian Aurora 25 Times Brighter Than Prior Brightest

NASA's Mars Reconnaissance Orbiter observes an impact crater with associated bright deposits that at first glance give the appearance of seasonal frost or ice accumulations.
NASA's Mars Reconnaissance Orbiter observes an impact crater with associated bright deposits that at first glance give the appearance of seasonal frost or ice accumulations.

'Elementary, My Dear Deposit...'

This image captured by NASA's 2001 Mars Odyssey spacecraft shows more of the south polar cap at the end of summer.
This image captured by NASA's 2001 Mars Odyssey spacecraft shows more of the south polar cap at the end of summer.

South Pole

This image captured by NASA's 2001 Mars Odyssey spacecraft show part of the dune field located on the floor of Rabe Crater.
This image captured by NASA's 2001 Mars Odyssey spacecraft show part of the dune field located on the floor of Rabe Crater.

Rabe Crater Dunes

Dark, windblown sand covers intricate sedimentary rock layers in this image captured by NASA's Mars Reconnaissance Orbiter (MRO) from Ganges Chasma, a canyon in the Valles Marineris system.
Dark, windblown sand covers intricate sedimentary rock layers in this image captured by NASA's Mars Reconnaissance Orbiter (MRO) from Ganges Chasma, a canyon in the Valles Marineris system.

Windblown Sand in Ganges Chasma

This hill in the South Polar layered deposits has influenced the erosion of the icy layers as seen by NASA's Mars Reconnaissance Orbiter.
This hill in the South Polar layered deposits has influenced the erosion of the icy layers as seen by NASA's Mars Reconnaissance Orbiter.

South Polar Spiral

A delta is a pile of sediment dumped by a river where it enters a standing body of water. Evidence for deltas that formed billions of years ago on Mars has been mounting in recent years. This image is from NASA's Mars Reconnaissance Orbiter.
A delta is a pile of sediment dumped by a river where it enters a standing body of water. Evidence for deltas that formed billions of years ago on Mars has been mounting in recent years. This image is from NASA's Mars Reconnaissance Orbiter.

Searching for Clinoforms in a Possible Delta

The objective of this observation from NASA's Mars Reconnaissance Orbiter is to examine a light-toned deposit in a region of what is called 'chaotic terrain.' Some shapes suggest erosion by a fluid moving north and south.
The objective of this observation from NASA's Mars Reconnaissance Orbiter is to examine a light-toned deposit in a region of what is called 'chaotic terrain.' Some shapes suggest erosion by a fluid moving north and south.

A Light Toned Deposit in Aureum Chaos

This false-color scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity catches 'Pillinger Point,' on the western rim of Endeavour Crater, in the foreground.
This false-color scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity catches 'Pillinger Point,' on the western rim of Endeavour Crater, in the foreground.

'Pillinger Point' Overlooking Endeavour Crater on Mars (False Color)

A graben is a downdropped block of material bounded on both sides by faults. The graben in this image from NASA's 2001 Mars Odyssey spacecraft follows the trend of the nearby Sirenum Fossae graben.
A graben is a downdropped block of material bounded on both sides by faults. The graben in this image from NASA's 2001 Mars Odyssey spacecraft follows the trend of the nearby Sirenum Fossae graben.

Graben

Currently displaying images 26-50 of 4810
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