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Mars' Victoria Crater at Meridiani Planum is seen in this image taken by NASA's High Resolution Imaging Science Experiment (HiRISE) camera in this picture released October 6, 2006. NASA officials gave conflicting views during a meeting of space scientists on December 13, 2006, on whether the construction of a moon base will mark a great leap in planning for a manned mission to Mars or prove a wasteful diversion of funds. FOR EDITORIAL USE ONLY REUTERS/NASA/JPL/Caltech/Handout (UNITED STATES)

The surface of Mars

Close-up views of our neighboring planet.