Spectral Signals Indicating Impact Glass on Mars
Researchers have found deposits of impact glass preserved in Martian craters, including Alga Crater, shown here.
Crisp Crater in Sirenum Fossae
This impact crater appears relatively recent as it has a sharp rim and well-preserved ejecta, the material thrown out of the crater when a meteorite hit Mars.
Sedimentary Rock Layers on a Crater Floor
MRO took this image of layered, sedimentary rocks on the floor of an impact crater north of Eberswalde Crater. Billions of years ago there may have been a lake in this crater.
Carbon Dioxide Ice on the South Polar Caps of Mars
The South Polar residual cap (the part that lasts through the summer) is composed of carbon dioxide ice.
Although the season is late spring, carbon dioxide ice still covers much of the surface at this high latitude site.
Diverse Orbits Around Mars
This graphic depicts the relative shapes and distances from Mars for five active orbiter missions plus the planet's two natural satellites. It illustrates the potential for intersections of the spacecraft orbits.
Mars Orbiter Sees Curiosity Rover in 'Artist's Drive' (Unlabeled)
A view from NASA's Mars Reconnaissance Orbiter on April 8, 2015, catches sight of NASA's Curiosity Mars rover passing through a valley called "Artist's Drive" on the lower slope of Mount Sharp.
Mars Orbiter Sees Curiosity Rover in 'Artist's Drive'