Thousands of newly released portraits of martian landscapes from NASA's Mars Global Surveyor spacecraft testify to the diversity of ways geological processes have sculpted the surface of our neighboring planet.
Swirling textures that some scientists call "taffy-pull terrain" fill one new image from the plains of southern Mars, for example. Other images reveal details of features such as wind-whipped polar dunes and steep-sided valleys carved by flowing water or lava.
The 10,232 newly released pictures from the Mars Orbiter Camera on Mars Global Surveyor bring the total number of images in the camera's online gallery to more than 134,000. The new batch is online