This textbook was developed to provide seniors and first-year graduate students in physical sciences with a general knowledge of electrodynamic phenomena in space. Since the launch of the first unmanned satellite in 1957, experiments have been performed to study the behavior of electromagnetic fields and charged particles. There is now a considerable amount of data on hand, and many articles, including excellent review articles, have been written for the specialists. However, for students, new researchers, and non-specialists, a need still exists for a book that integrates these observations...