Advances in Space Science and Technology, Volume 8 presents the possibility that what is recognized as lunar cratering was caused by endogenous, volcanic activity rather than by the more widely accepted meteoritic impact mechanism. This book provides an introduction to the technology of rocketry. Organized into four chapters, this volume begins with an overview of lunar volcanism and the interpretation of the widespread phenomenon of cratering. This text then provides a comprehensive examination of one of the major components of the solid propellant rocket. Other chapters consider the many problems associated with design, construction, and testing of motor cases of the solid propellant rocket. This book presents as well a thorough examination of interplanetary mission planning covering such vital elements as the process of mission decision making based on model theory. The final chapter deals with the exploration of the planet Mars. This book is a valuable resource for geoscientists, astronomers, and geologists.