This image from NASA's Mars Reconnaissance Orbiter shows a landscape that is pervasively eroded, right up to the tops of the ridges, with channels extending down into depositional fans much like alluvial fans in the Mojave Desert.
This image from NASA's Mars Reconnaissance Orbiter covers layered sedimentary rocks on the floor of an impact crater north of Eberswalde Crater. There may have been a lake in this crater billions of years ago.
Seasonal flows called recurring slope lineae (RSL) grow down warm slopes in the summer, fade when they become inactive, then re-form the following year when the slopes warm up again from the Sun. This observation is from NASA's Mars Reconnaissance Orbiter
Although Mars' soloar cap survives each warm summer season, it is constantly changing its shape due to sublimation of carbon dioxide from steep slopes and deposition onto flat areas as seen in this image from NASA's Mars Reconnaissance Orbiter.
This image from NASA's Mars Reconnaissance Orbiter shows a dusty area of Mars. The dark streaks on the slopes are locations where the dust has slumped downhill revealing a less dusty surface underneath.
Seasonal Flows in the Central Mountains of Hale Crater
Recurring slope lineae are active flows on warm Martian slopes that might be caused by seeping water. One of the most active sites known is in the central peaks of Hale Crater as seen by NASA's Mars Reconnaissance Orbiter.
There are some interesting erosional signs in this observation from NASA's Mars Reconnaissance Orbiter, which will make for a good comparison with other intracrater fans and fluvial sedimentary landforms.
This frame from a sequence of images shows a blast zone where the sky crane from NASA's Curiosity rover mission hit the ground after setting the rover down in August 2012. The images are from HiRISE on NASA's Mars Reconnaissance Orbiter.
This observation from NASA's Mars Reconnaissance Orbiter shows an interesting crater floor with what appear to be inverted channels, rounded lobe-like landforms, and light-toned layered deposits along the southern portion of the crater wall.
This image is of a portion of the Southern plains region within Hellas, the largest impact basin on Mars, with a diameter of about 2300 kilometers (1400 miles), as observed by NASA's Mars Reconnaissance Orbiter.
Eleven years and two months after its landing on Mars, the total driving distance of NASA's Mars Exploration Rover Opportunity surpassed the length of a marathon race: 26.219 miles (42.195 kilometers).
This image from NASA's Mars Reconnaissance Orbiter covers Raga Crater, the location of well-studied recurring slope lineae (RSL). RSL are dark flows that disappear and re-form every Mars year at certain locations.