Edited Mars Reconnaissance Orbiter PR image of a cliff on Mars with light-toned material on it.

Edited Mars Reconnaissance Orbiter image of layered bedrock.

Edited Mars Reconnaissance Orbiter image of sand dunes and frost on Mars.

Edited Mar Reconnaissance Orbiter image of layers in a polar region on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a fissure being monitored for slope changes. Processing variant.

Edited Mars Reconnaissance Orbiter image of a scoured section of the floor of Eos Chasma. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of Gale Crater with Curiosity visible within the image. Grayscale version. Crop of region where Curiosity is visible.

Edited Mars Reconnaissance Orbiter image of pits on Elysium Mons.

Edited Mars Reconnaissance Orbiter image of a mid-latitude pit in the surface of Mars. (It looks like a mound, but is a depression, not a hill.) Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a sandy region of Herschel Crater on Mars.

Edited Mars Reconnaissance Orbiter image of a sand dune field over layers of bedrock on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a dune sea in Ganges Chasma.

Edited Mars Reconnaissance Orbiter image of gullies exposing layers of different-colored bedrock on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes and north polar terrain on Mars.

Edited Mars Reconnaissance Orbiter image of fine-branched ridges on Mars.

Edited Mars Reconnaissance Orbiter image of shadows over a fossil glacier (I wonder if NASA means "fossil" as the glacier has turned into rock?). Color variant.

Edited Mars Reconnaissance Orbiter image of sand on the floor of Pasteur Crater.

Edited Mars Reconnaissance Orbiter image of cinder cones without roots (which I suppose means they aren't very tall).

Edited Mars Reconnaissance Orbiter image of north Syrtis Major on Mars. Processing variant.

Edited Mars Reconnaissance Orbiter image of pits on Elysium Mons. Processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes near the rim of the Hellas Impact Basin, which is one of the largest craters in the solar system. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a volcanic vent on a volcano on Mars.

Edited Mars Reconnaissance Orbiter image of a new (relatively speaking) crater on Mars inside Pasteur Crater. The blue indicates basaltic material. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a depression and sand dunes on Mars.

Edited Mars Reconnaissance Orbiter image of sand dunes and frost on Mars.

Edited Mars Reconnaissance Orbiter image of a recent impact crater on Mars.

Edited Mars Reconnaissance Orbiter image of a fissure being monitored for slope changes.

Edited Mars Reconnaissance Orbiter image of a depression in Juventae Chasma on Mars. Color/processing variant.

Edited MRO image of a light-toned deposit in Aureum Chaos.

Edited Mars Reconnaissance Orbiter image of part of western Gale Crater (but without Curiosity).

Edited Mars Reconnaissance Orbiter image of the south Melas region showing a rocky wall with sand pressing up against it.

Edited Mars Reconnaissance Orbiter image of a mound of ice in Louth Crater on Mars.

Edited Mars Reconnaissance Orbiter image of terrain in the Terra Sirenum region of Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a worm-like range of hills on Mars.

Edited Mars Reconnaissance Orbiter image of "dune convoys in West Olympia Undae.

Edited Mars Reconnaissance Orbiter image of the floor of Roddy Crater on Mars.

Edited Mars Reconnaissance Orbiter image of a monitoring campaign to see changes gullies in craters. Color variant.

Edited Mars Reconnaissance Orbiter image of a high-latitude intracrater deposit. Cropped, grayscale variant.

Edited Mars Reconnaissance Orbiter image of layering in a crater west of the Arabia Terra region of Mars.

Edited Mars Reconnaissance Orbiter image of chaotic terrain.

Edited Mars Reconnaissance Orbiter image of a candidate recent impact crate on Mars.

Edited Mars Reconnaissance Orbiter image of a closer view of hills in Ganges Chasma. Processing variant.

Edited Mars Reconnaissance Orbiter image of a very nicely textured (by wind, probably) surface of Mars with sand dunes on top.

Edited Mars Reconnaissance Orbiter image of sulfate strata (sounds stinky but with only 1% of Earth's atmospheric pressure, you wouldn't smell very much) in Ius Chasma.

Edited Mars Reconnaissance Orbiter image of sand dunes on a textured surface in a polar region (I don't recall seeing which pole in the original caption but suspect it's the north polar region) on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of hills in the northern plains of Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a slope being monitored for changes.

Edited Mars Reconnaissance Orbiter image of craters and flows of sand between them.

Edited Mars Reconnaissance Orbiter image of rock falls (into a large fissure) in Cerberus Fossae on Mars. Cropped color/processing variant.

Edited Mars Reconnaissance Orbiter image of a sand dune field over layers of bedrock on Mars. Processing variant.