Dense clusters of crack-like structures called deformation bands form the linear ridges prominent in this image from NASA's Mars Reconnaissance Orbiter.
The team operating NASA's Opportunity rover has chosen southeast as the direction for the rover's next extended journey, toward a crater more than 20 times wider than "Victoria Crater."
This image in enhanced color from visible-light wavelengths shows light-toned rugged highland material in an area near the Martian equator.
This image spans the floor of Ius Chasma's southern trench.
Features believed to indicate where channels used to flow on Mars can be seen in this image taken by the High Resolution Imaging Science Experiment (HiRISE) camera in NASA's Mars Reconnaissance Orbiter.