An artist's concept of possible exploration programs. This is a close-up view of an artist's concept (S85-31477 and S85-31478) of a manned Mars mission and construction of a permanent base. This depicts such possibilities as greenhouses, segmented traverse vehicles, tunnelling machines, water wells and robotic front end loaders. Artwork done for NASA by Pat Rawlings, of Eagle Engineering Incorporated. (NASA Media Archives). Buy this as a superb wall poster, a canvas print or a framed print.