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Astrobiology Magazine is carrying an article on imaging the tracks of the MERs all I can say is wow, check it out for your self.<br /><br /><font color="yellow"><b>Making Tracks on Mars</b><br /><br />Summary (Sep 27, 2004): In a remarkable series of orbital pictures, the Mars Global Surveyor's cameras have imaged the tracks of the Spirit rover on the surface. Individual debris pieces including the backshell and lander are visible with remarkable clarity using an innovative roll of the satellite.</font><br /><br />NASA's Mars Global Surveyor, starting its third mission extension this week after seven years of orbiting Mars, is using an innovative technique to capture pictures even sharper than most of the more than 170,000 it has already produced.<br /><br />One dramatic example from the spacecraft's Mars Orbiter Camera shows wheel tracks of NASA's Mars Exploration Rover Spirit and the rover itself. Another tells scientists that no boulders bigger than about 1 to 2 meters (3 to 7 feet) are exposed in giant ripples created by a catastrophic flood.<br /><br />In addition, about 24,000 newly catalogued images that Mars Global Surveyor took between October 2003 and March 2004 have been added to the Mars Orbiter Camera Image Gallery . These include additional pictures of the Mars Exploration Rover sites seen from orbit.<br /><br />"Over the past year and a half, the camera and spacecraft teams for Mars Global Surveyor have worked together to develop a technique that allows us to roll the entire spacecraft so that the camera can be scanned in a way that sees details at three times higher resolution than we normally get," said Dr. Ken Edgett, staff scientist for Malin Space Science Systems, San Diego, Calif., which built and operates the Mars Orbiter Camera. The technique adjusts the rotation rate of the spacecraft to match the ground speed under th