This image from NASA's Mars Reconnaissance Orbiter (MRO) shows a variety of surface textures within the south polar residual cap of Mars.
Caption:
This image from NASA's Mars Reconnaissance Orbiter (MRO) shows a variety of surface textures within the south polar residual cap of Mars. (Photo by: Universal History Archive/UIG via Getty Images)
Credit:
Album / Universal Images Group / Universal Science Images \ UIG