This image captured by NASA's Mars Reconnaissance Orbiter shows a small channel cutting into young volcanic lavas in a region where massive catastrophic flooding took place in the relatively recent past in the Athabasca Valles region.
NASA's Mars Reconnaissance Orbiter acquired this image to aid in the search for the missing lander, Mars 2. If the debris field is found, it could serve as a future landing location to study the effects of crash landing on the Martian surface.
This image NASA's Mars Reconnaissance Orbiter shows an impact crater that was cut by lava in the Elysium Planitia region of Mars. It looks relatively flat, with a shallow floor, rough surface texture, and possible cooling cracks.
The linear depression in the center of this image captured by NASA's Mars Odyssey spacecraft is a graben - a fault bounded block of material. The graben crosses the crater and ejecta in the middle of the image.
Mars Rover Opportunity's View of Comet (Blink of Two Exposures)
This two-image blink shows a comparison of two exposure times in images from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity showing comet C/2013 A1 Siding Spring as it flew near Mars on Oct. 19, 2014.
Lava flows of Daedalia Planum can be seen at the top and bottom portions of this image from NASA's 2001 Mars Odyssey spacecraft. The ridge and linear depression in the central part of the image are part of Mangala Fossa, a fault bounded graben.
Opportunity's Northward View of 'Wdowiak Ridge' (False Color)
This north-looking vista from NASA's Mars Rover Opportunity shows 'Wdowiak Ridge,' from left foreground to center. This version is presented in false color, which enhances visibility of the rover's wheel tracks at right.
Perennial Frost in a Crater on the Northern Plains
Most surface ice on Mars is temporary. The polar layered deposits are thick stacks of permanent water ice at each pole, and the South Polar residual cap may be a permanent (although dynamic) layer of carbon dioxide ice as seen by NASA's Mars Reconnaissanc