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
A Collection of Landforms in Eastern Elysium Planitia
In the northern section of this from image NASA's Mars Reconnaissance Orbiter, we see flat terrain that is probably an ancient lava field. These dust avalanches are common in dust-covered regions on Mars.
The objective of this observation from NASA's Mars Reconnaissance Orbiter is to examine a light-toned deposit in a region of what is called 'chaotic terrain' at the base of the Valles Marineris canyon system.
This image from NASA's 2001 Mars Odyssey spacecraft shows a region near Memnonia Sulci, which has been eroded by the wind to form linear ridges called yardangs. The two prominent directions of wind are recorded by the two directions of the ridges.
View of Comet Siding Spring from Southern Hemisphere (Artist's Concept)
Comet Siding Spring will have a close approach to Mars on Oct. 19, 2014. This artist's concept shows people in the Southern Hemisphere where to look for Mars in the night sky. Mars and the comet may be visible with binoculars.
Mars Orbiters 'Duck and Cover' for Comet Siding Spring Flyby (Artist's Concept)
This artist's concept shows NASA's Mars orbiters lining up behind the Red Planet for their 'duck and cover' maneuver to shield them from comet dust that may result from the close flyby of comet Siding Spring (C/2013 A1) on Oct. 19, 2014.
While yesterday's image showed a texture of oval depressions (swiss cheese), this image from NASA's 2001 Mars Odyssey spacecraft shows a linear surface texture of the south polar cap. This texture is described as looking like a thumbprint.