Viking 1 on Mars. The picture shows the red Martian landscape and, the right, trenches in the surface dug by the arm showing an Viking Lander for soil samples. Viking 1 was launched on 20th August 1975 and landed in the Chryse Planitia region of Mars study the Martian environment (NASA Media Archives). Buy this as a superb wall poster, a canvas print or a framed print.