Marquette Island - Sol 2070

NASA's Mars Exploration Rover Opportunity used the wire brush of its Rock Abrasion Tool (RAT) during the Rover's 2070th Martian Day, or Sol (such as Nov., 19th, 2009), to scour dust from a circular target area on a rock called "Marquette Island". The brushed target area, called "Peck Bay", is visible as a dark circle about 5 centimeters (a little less than 2 inches) in diameter just below the tool turret at the end of the Rover's Robotic Arm (RA) in this image. This image was taken later on the same Sol (2070) by the Rover's Front Hazard-Avoidance Camera (HazCam).

Opportunity is performing an extensive analysis of this rock, which initial investigation suggests may be a stony meteorite.