Edited Mars Reconnaissance Orbiter image of teardrop defrosting on sand dunes on Mars. Color variant.

Edited Mars Reconnaissance Orbiter image of southern Terra Cimmeria.

Edited Mars Reconnaissance Orbiter image of a pit on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of Nicholson Crater.

Edited Mars Reconnaissance Orbiter image of debris flow in Hebes Chasma.

Edited Mars Reconnaissance Orbiter image of a pit crater on the side of Pavonis Mons.

Edited Mars Reconnaissance Orbiter image of an exhumed crater in Meridiani Planum. Context image. Processing variant.

Edited Mars Reconnaissance Orbiter image of the edge of the Martian North Polar Erg, called "Windy City."

Edited Mars Reconnaissance Orbiter image of exposed north polar layered deposits forming a nice contrast with the surrounding ice.

Edited Mars Reconnaissance Orbiter image of impact ejecta from a crater in Ladon Valles. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of part of the Martian south polar residual cap.

Edited Mars Reconnaissance Orbiter image of a lava-filled crater in Elysium Planitia.

Edited Mars Reconnaissance Orbiter image of a dichotomy boundary in the Aeolis Region of Mars.

Edited Mars Reconnaissance Orbiter image of the mantling material of a scarp on Mars.

Edited Mars Reconnaissance Orbiter image of clay sulfates in Terra Sirenum.

Edited Mars Reconnaissance Orbiter image of ejecta west of Hargraves Crater on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of slopes being monitored for changes on Mars. Color/processing variant.

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

Edited Mars Reconnaissance Orbiter image of frost and patterns on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes on Mars in Chasma Boreale.

Edited Mars Reconnaissance Orbiter image of part of Nectaris Fossae on Mars. Processing variant.

Edited Mars Reconnaissance Orbiter image of the western edge of Marth Crater on Mars.

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

Edited Mars Reconnaissance Orbiter image of sand dunes and mesas in Iani Chaos on Mars. Processing variant.

Edited Mars Reconnaissance Orbiter image of part of the escarpment of Chasma Boreale near the Martian north pole. Processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes on Mars in the shape of upside-down Ts. (Or perhaps the image is upside-down.) Color variant.

Edited Mars Reconnaissance Orbiter image of part of Coprates Chasma.

Edited Mars Reconnaissance Orbiter image of mounds inside Dokka Crater on Mars' north polar region. Processing variant.

Edited Mars Reconnaissance Orbiter image of a recent impact crater on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes in lines on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of terrain on Mars near Reynolds Crater. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of ridges in Meridiani Planum on Mars.

Edited Mars Reconnaissance Orbiter image of a rocky crater floor (the other things being in crater floors: sand, ice, rovers).

Edited Mars Reconnaissance Orbiter image of the residual south polar ice cap. Processing variant.

Edited Mars Reconnaissance Orbiter image of the residual south polar ice cap.

Edited Mars Reconnaissance Orbiter image of Mawrth Vallis, and the strange mottled landscape.

Edited Mars Reconnaissance Orbiter image of sand dunes in Stokes Crater. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of cliffs and valleys on Mars.

Edited Mars Reconnaissance Orbiter image of a channel in Idaeus Fossae.

Edited Mars Reconnaissance Orbiter image of dunes in the north polar erg of Mars.

Edited Mars Reconnaissance Orbiter image of part of Trouvelot Crater.

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

Colorized via an on-line AI program (demos.algorithmia.com/colorize-photos/) image from Mars Reconnaissance Orbiter of the peak of a mountain.

Edited Mars Reconnaissance Orbiter image of surface features in Mamers Valles.

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

Edited Mars Reconnaissance Orbiter image of gullies on the rim of a crater.

Edited Mars Reconnaissance Orbiter image of sand dunes and dust devil tracks on Mars.

Edited Mars Reconnaissance Orbiter image of complex terrain on the floor of a valley on Mars.

Edited Mars Reconnaissance Orbiter image of a circular feature (not necessarily a crater) in the residual ice cap of the South Pole of Mars. PR version. Processing variant.

Edited Mars Reconnaissance Orbiter image of seasonal monitoring of sand dunes in Mclaughlin Crater.