Sol 4096, August 2, 2015. Opportunity is edging slowly down into Marathon Valley. Three Navcam frames show the valley’s north wall at left and in the distance, the floor of Endeavour Crater, with dunes, both static (light-color, center) and active (dark, at right). Click to enlarge.
Opportunity raw images, its latest mission status, a location map. and atmospheric opacity, known as tau.