NASA: We've discovered something completely new on the surface of Mars

NASA may be ramping up for the launch of its next Mars rover mission later this month, but the Agency's Opportunity rover — which has been chugging around the Martian landscape for close to eight years, now — refuses to recede into obsolescence. You're looking at a close-up of the Martian surface, recently shot by… »11/08/11 9:55am11/08/11 9:55am