|The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's
Mars Reconnaissance Orbiter took two images of the larger of Mars' two
moons, Phobos, within 10 minutes of each other on March 23, 2008. This
is the first, taken from a distance of about 6,800 kilometers (about
4,200 miles). It is presented in color by combining data from the
camera's blue-green, red, and near-infrared channels.