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This image by NASA shows marks in the Martian soil made by the rover Curiosity. The space agency said the six-wheel rover is set to drive to a new destination soon. It landed in August on a two-year mission to study whether the environment is suitable for microbial life. (AP Photo/NASA)

Curiosity rover explores Mars

All the latest images of life on the Red Planet, beamed back by NASA's Mars rover, Curiosity.