This portion of an image from the High Resolution Imaging Science Experiment (HiRISE) on NASA’s Mars Reconnaissance Orbiter has been annotated. (Image credit: NASA/JPL-Caltech/University of Arizona)
Home This portion of an image from the High Resolution Imaging Science Experiment (HiRISE) on NASA’s Mars Reconnaissance Orbiter has been annotated. (Image credit: NASA/JPL-Caltech/University of Arizona) This portion of an image from the High Resolution Imaging Science Experiment (HiRISE) on NASA's Mars Reconnaissance Orbiter has been annotated. (Image credit: NASA/JPL-Caltech/University of Arizona)