Heavily cratered highlands

Heavily cratered highlands

. This mosaic of Viking images displays the southern hemisphere of Mars. This half of the Martian surface retains the cratered scars of an ancient bombardment dating back to the first 500 million years of the solar system, as well as the marks of a continued bombardment since then. The conspicuous, light-colored, circular depression (lower right) marks the Hellas impact basin. Several large craters are located directly northeast (upper left) of Hellas, including those named after Giovanni Cassini (1625-1712), Christiaan Huygens (1629-1695), and Giovanni Schiaparelli (1835-1910). The residual south polar cap is located near the bottom. An enlarged version of the central part of this image is given in Fig. 8.21. (Courtesy of NASA, JPL and the U.S. Geological Survey.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University