An impact crater, nicknamed Nereus, encountered by the Opportunity Mars Rover on its way to Endeavour Crater, in September 2009.
     Five years into its exploration of Meridiani Plain on Mars, the Opportunity rover passed this ten-yard-wide impact crater. Jagged rocks smashed and thrown outward by the impact are scattered across the dust and sand-covered landscape. (Mars Exploration Rover Mission, JPL, NASA; Image Processing: Kenneth Kremer, apod091019)
     Most of the pages on this site are held to a fixed width, to accommodate viewing on older monitors; but many rover images are, as in the case of this image, wide-field composites which require a wider format. Over the next few months, a selection of narrow and wide-field images will be added to this page, as a partial record of Opportunity's progress and discoveries.