The high-resolution camera aboard NASA’s Mars Reconnaissance Orbiter is called HiRISE, short for High Resolution Imaging Science Experiment.
HiRISE is operated by the University of Arizona and was designed to photograph the Martian surface in exceptional detail. Mars Reconnaissance Orbiter entered orbit around Mars in March 2006, and HiRISE has since imaged landing sites, dunes, cliffs, gullies, impact craters, and spacecraft hardware.
The camera can resolve features much smaller than those visible in many earlier global Mars maps. Its images help scientists select landing locations and examine surface changes over time, including new impact craters and seasonal activity.
HiRISE is not the same instrument as Curiosity’s Mastcam or the Mars Odyssey orbiter’s THEMIS. CTX, also on Mars Reconnaissance Orbiter, provides wider-context images around many HiRISE targets.