This image from NASA's 2001 Mars Odyssey spacecraft shows a small region between Olympus Mons and Sulci Gordii. There are lava flows, tectonic depressions and channels visible in the image. All the features are related to the volcanism.
A bright ice cap of frozen water covers the North Pole of Mars as seen by NASA's Mars Reconnaissance Orbiter. In winter, thin coverings of carbon dioxide and water frost covers this area and frosts finally disappear at end of the Martian spring season.
NASA's Mars Reconnaissance Orbiter shows Mars' northern-most sand dunes beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.
Several channels are located on the flank of Hecates Tholus. In this image captured by NASA's 2001 Mars Odyssey spacecraft, one of those channels enters a crater, creating a deposit on the floor of the crater.
This image from NASA's 2001 Mars Odyssey spacecraft, located southwest of Olympus Mons, contains a very subtle windstreak in the bottom 1/3 of the image. Originating at a small crater, the windstreak records a wind that blew east to west.
This stereo view combining images taken on Feb. 10, 2014, by the Navigation Camera (Navcam) on NASA's Curiosity Mars rover looks back to where the rover crossed a dune at 'Dingo Gap' four days earlier. You need 3D glasses to view this image.
This panorama combining images taken on Feb. 10, 2014, by NASA's Curiosity Mars rover looks back to where the rover crossed a dune at 'Dingo Gap' four days earlier. The view is centered toward the east and spans about 225 degrees.
Curiosity's View Back After Passing 'Junda' Striations
On Feb. 19, 2014, NASA's Curiosity Mars rover looked back after finishing a long drive. The rows of rocks just to the right of the fresh wheel tracks in this view are an outcrop called 'Junda.' This view is looking toward the east-northeast.
This dramatic image observed by NASA's Mars Reconnaissance Orbiter shows dark rippled bodies of sand, sometimes in the form of dunes, streaming through Ganges Chasma. The floor of the canyon is covered by hills and mesas.
Towards the top of this image from NASA's 2001 Mars Odyssey spacecraft is a 'T' shaped depression and two sections of narrow channel located on the northeast part of the Elysium Mons volcanic complex. Fluids (like water, or lava) flow downhill.