Sometimes Opportunity needs to stop and smell the roses … uh, or the soil as the case may be. This week, the science team chose to examine the mineral content of the rippled ground before continuing the southward trek.

The team is interested in comparing the chemical makeup of the ripples' troughs to that of the ripples' crests.

Opportunity stopped at a nice trough, extended its robotic arm and investigated the soil. It then drove up onto one of the ripples to examine the crest.

Sol-by-sol summaries