Extensively revised and updated, this new edition of David A. Rothery's acclaimed geological guide to the outer solar system includes results and close-up color and black and white images from the 1995-1999 Galileo mission to Jupiter and from the Voyager space probe. Rothery, a noted planetary scientist, explains the geological aspects of the major satellites of the outer bodies, from Jupiter to Neptune to the Pluto-Charon system. In particular he shows how tectonic and volcanic processes, driven by heat from within, have shaped the rigid outer layers of these bodies. Rothery also discusses the similarities and differences among these planets, and reveals how they resemble Earth-like planets. This fascinating book is written in an introductory style ideal for first- or second-year college courses. Amateur geologists and astronomers will also find its insights rewarding.