First visit to Mercury

First visit to Mercury

Fig. 2.2 . A photomosaic of Mercury's southern hemisphere produced from images acquired by Mariner 10 during its first encounter with the planet in March 1974. Mercury has a heavily cratered surface that resembles the lunar highlands. Bright rayed craters are also present on Mercury, as they are on the Moon. (Courtesy of NASA/JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University