The Mars Exploration Rover (MER-B), Opportunity, landed on the red planet a year ago. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) cPROTO image (0.5 cm/pixel) is the only picture obtained thus far that shows the tracks made by the Opportunity rover. This is a sub-frame of MOC image R16-02188. It was acquired on 26 April 2004, during Opportunity’s 91st sol–the first day of the MER-B Extended Mission. At that time, Opportunity had recently completed exploration of nearby Fram Crater, and was enroute toward Endurance Crater, where it would eventually spend most of the rest of 2004. The rover itself can be seen in this image– an amazing accomplishment, considering that the MGS spacecraft was nearly 400 kilometers (nearly 250 miles) away at the time!