The foothills of Aeolis Mons in Gale Crater as seen by the Mars Curiosity rover on 7 September. The top view is in local light, the bottom has been white balanced to give an idea of what the same scene would like like on Earth. More at mars.jpl.nasa.gov...
Can you tell which is Earth and which is Mars? On the left, images from the Red Planet as captured by the Opportunity rover and the Mars Reconnaissance Orbiter. On the right, locations of roughly the same scale in and around Canyonlands National Park, Utah. Details at the link.
This self-portrait of NASA's Mars rover Curiosity combines dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity's work on Mars (Feb. 3, 2013), plus three exposures taken during Sol 270 (May 10, 2013) to update the appearance of part of the ground beside the rover.