Frost-Covered Dunes in a Crater
Dunes are often found on crater floors. In the winter, at high northern latitudes, the terrain is covered by carbon-dioxide ice (dry ice).
Gale Crater's History Book
Gale Crater forms a large natural repository for much of Martian geologic history.
This is an image of a central pit of an impact crater in the Martian ancient highlands.
Small Floral-Shaped Volcano
This is a small volcano superimposed on the flanks of a larger one of the Cerberus Tholi.
Sand Dunes Near the North Pole
This picture was taken during the Martian summer with only small patches of ice remaining at the surface; they show up as bright, somewhat blue, spots on slopes that provide some shading from the Sun.
Icy New Impact
This crater, formed in 2008, exposes shallow, clean ice that is not uncommon in the middle-to-high latitudes on Mars.
Bright Gully Deposits on Mars
This unnamed impact crater is about 8 kilometers in diameter and contains numerous gullies.
A Wild Assortment of Jumbled Rocks
This image covers a region of Mars near Nili Fossae that contains some of the best exposures of ancient bedrock on Mars.