Viking Orbiter Views of Mars

Published in early 1980, the NASA produced book (NASA Special Publication NASA SP-441) contains over 150 photographs obtained by the two Viking space probes in orbit around Mars. The resolution of these photographs was approximately ten times better than the previous Martian orbiter, Mariner 9 and gave a hint of the discoveries that would come with the Martian probes of the late 1990's and early 2000's. The photographs that were chosen illustrate the diverse geology of Mars and its atmosphe...