This image shows a graben (a trough formed when the ground drops between two parallel faults) and a lava flow in the Tharsis volcanic province of Mars. North is up. The image covers an area about 6 ki...› View Image
This enhanced image shows the inside of a rimless pit about 180 meters (591 feet) in diameter, northwest of the mountain Ascraeus Mons in the northern hemisphere of Mars. The pit has a very steep east...› View Image
This enhanced image shows the inside of a rimless pit about 310 meters (1,017 feet) in diameter, northwest of the mountain Ascraeus Mons in the northern hemisphere of Mars. The pit has a very steep ea...› View Image
This volcanic cone in the Nili Patera caldera on Mars has hydrothermal mineral deposits on the southern flanks and nearby terrains. Light-toned patches on the closest flank of the cone, and the entire...› View Image
The gullies on a Martian sand dune in this trio of images from NASA's Mars Reconnaissance Orbiter deceptively resemble features on Earth that are carved by streams of water.
At the center of this view of an area of mid-latitude northern Mars, a fresh crater about 6 meters (20 feet) in diameter holds an exposure of bright material, blue in this false-color image. The High-...› View Image
Stokes Crater, pictured here, is one of at least nine craters in the northern lowlands of Mars with exposures of hydrated minerals detected from orbit, according to a June 25, 2010, report.
› View Image
Lyot Crater, pictured here, is one of at least nine craters in the northern lowlands of Mars with exposures of hydrated minerals detected from orbit, according to a June 25, 2010, report.
This image, combining data from two instruments aboard NASA’s Mars Global Surveyor, depicts an orbital view of the north polar region of Mars.
This image shows a cross-section of a portion of the north polar ice cap of Mars, derived from data acquired by the Mars Reconnaissance Orbiter's Shallow Radar (SHARAD).
The view of oddly sculpted ground inside the giant Hellas Basin on Mars comes from the High Resolution Imaging Science Instrument on NASA's Mars Reconnaissance Orbiter.
This image covers some high-standing topography just outside the rim of an impact crater about 30 kilometers (19 miles) in diameter near a Martian hill named Zephyria Tholus.
The terrain in this image lies in the Deuteronilus Mensae region along the highland-lowland dichotomy boundary in the northern hemisphere of Mars.
The Martian north polar layered deposits are an ice sheet much like the Greenland ice sheet on the Earth.
Common to the northern plains of Mars are rock and boulder strewn landscapes otherwise devoid of major features except a few impact craters.
This image shows a portion of the floor in Palos Crater on equatorial Mars.
This image covers the northern edge of the largest volcano in the solar system, Olympus Mons on Mars.
Samara Valles is one of the longest ancient valley systems on Mars.
This image reveals meter-scale (yard-scale) surface textures of mesas and knobs in the Aureum Chaos region of Mars.
Three pairs of before and after images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter illustrate movement of ripples on dark sand dunes in the Nili Patera region of Mars.