This book is written for a wide range of graduate and undergraduate students studying various courses in physics and astronomy. It is accompanied by the award-winning educational Windows(r) software package "Planets and Satellites" developed by the author. This text, together with the interactive software, is intended to help students learn and understand the fundamental concepts and the laws of physics as they apply to the fascinating world of the motions of natural and artificial celestial bodies. The primary aim of the book is the understanding of the foundations of classical and modern...