This Aug. 9, 2011 image provided by NASA shows a view from the Mars Rover Opportunity from the Western rim of the Endeavour Crater. This crater -- with a diameter of about 14 miles -- is more than 25 ... more 
This Aug. 9, 2011 image provided by NASA shows a view from the Mars Rover Opportunity from the Western rim of the Endeavour Crater. This crater -- with a diameter of about 14 miles -- is more than 25 times wider than any that Opportunity has previously approached during the rover's 90 months on Mars. (AP Photo/NASA) less 
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Associated Press | Photo By NASA
Wed, Aug 31, 2011 7:13 PM EDT