Edited Mars Reconnaissance Orbiter image of dark sand dunes on a rough surface on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes over rough terrain. I liked the colors, which is why I posted these. Full image (but reduced in size).

Mars Reconnaissance Orbiter image of a large sand dune on Mars.

Edited Mars Reconnaissance Orbiter image of sand dunes over rough terrain. I liked the colors, which is why I posted these. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of a context image for the small remnant of Mars' south pole ice cap.

Edited Mars Reconnaissance Orbiter image of the image strip showing the small remnant of part of Mars' south pole ice cap.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis.

Edited Mars Reconnaissance Orbiter image of an uplift (with sand dunes) in or near Terby Crater.

Edited Mars Reconnaissance Orbiter image of new craters on a light-colored background on Mars. Color/processing variant.

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

Edited Mars Reconnaissance Orbiter image of a frozen cataract of lava on Mars.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis. Color/processing variant.

La ilustración muestra al Cometa Siding Spring, y su sobrevuelo cercano de Marte. Y a las naves espaciales humanas puestas a salvo de la lluvia de meteoritos del viajero cósmico. Crédito de la imagen: NASA/JPL

El Cometa C/2013 A1 Siding Spring bañó con una lluvia de meteoritos la atmósfera de ...

notaspampeanas.com/site/cometa-bano-con-meteoritos-marte-...

(Very large) image from Mars Reconnaissance Orbiter of a colorful part of Mawrth Vallis on Mars. The IRB filters were used to highlight various minerals.

Edited Mars Reconnaissance Orbiter image of a crater in Terra Cimmeria with interesting gullies. (Lots of craters on Mars have gullies - there is no agreement, however, on how they were formed.) Context image for previous image.

Edited Mars Reconnaissance Orbiter image of a relatively colorful crater.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows.

Edited Mars Reconnaissance Orbiter image of a frozen cataract of lava on Mars.

(Very large) image from Mars Reconnaissance Orbiter of a colorful part of Mawrth Vallis on Mars. The IRB filters were used to highlight various minerals. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of dark sand dunes on a rough surface on Mars. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes over rough terrain. I liked the colors, which is why I posted these. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of sand dunes on Mars.

(Very large) image from Mars Reconnaissance Orbiter of a colorful part of Mawrth Vallis on Mars. Color/processing variant.

(Very large) image from Mars Reconnaissance Orbiter of a colorful part of Mawrth Vallis on Mars.

Edited Mars Reconnaissance Orbiter image of sand dunes in valleys on Mars.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows. Full image RGB strip. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis. Context image.

Edited Mars Reconnaissance Orbiter image of gullies and landforms near Newton Crater. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of colorful landforms in Mawrth Vallis on Mars. RGB strip. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis.

Edited Mars Reconnaissance Orbiter image of the Ceti Mensa region of Mars with its many layers. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of the Ceti Mensa region of Mars with its many layers.

Edited Mars Reconnaissance Orbiter image of sand dunes in Wirtz Crater.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis. Infrared (IRB) version.

Edited Mars Reconnaissance Orbiter image of ice blocks that fell during an avalanche between 2006 and 2012. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows. Full image IRB strip. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of light-toned mounds in Gorgonum Basin.

Edited Mars Reconnaissance Orbiter image of a relatively colorful crater. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows. Full image RGB strip.

Edited Mars Reconnaissance Orbiter browse image (meaning it's not terribly large) of hills, knobs, and valleys in Acidalia Planitia.

Edited Mars Reconnaissance Orbiter image of large sand dunes and small sand dunes.

Edited Mars Reconnaissance Orbiter image of dark sand dunes on a rough surface on Mars.

Edited Mars Reconnaissance Orbiter image of defrosting dunes in Chasma Boreale (a huge valley in Mars' north polar cap). Full image. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of the InSight lander (which stopped working due to too much dust on its solar panels a while ago).

Edited Mars Reconnaissance Orbiter image of colorful landforms in Mawrth Vallis on Mars. IRB strip. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of alluvial fans on Mars, most likely created by ancient (eg, billions of years ago) water flows. Full image IRB strip.

Edited Mars Reconnaissance Orbiter image of layered deposits (perhaps indicating an ancient lake) in Uzboi Vallis. Infrared (IRB) version. Color/processing variant.

Edited Mars Reconnaissance Orbiter image of fans on Mars caused by erupting carbon dioxide as it warms up in the local spring. Color/processing variant.

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