Scientists are investigating the ripples and textures seen in this image, taken by the panoramic camera on NASA's Mars Exploration Rover Opportunity. The highlighted strip just right of center was taken by the microscopic imager located on the rover's instrument deployment device or "robotic arm." The images were taken from "Panoramic Position 2" on the southeast side of the rim of "Endurance" Crater. This rock target, nicknamed "Pyrrho," shows interesting braided patterns that were investigated in close detail using the microscopic imager.