Radio science is defined as the study of range and travel of radio waves in various environments. This book on radio science discusses the new scientific procedures that employ radio sciences and the different technologies that are developed for its induction, transmission and reception. Statistics and data that could predict atmospheric changes as well as long-term changes in the earth's climate and biosphere can be calculated using analyses and methodology used in radio science. This book is a valuable compilation of topics ranging from the basic to the most complex advancements in the field of radio science. The aim of this text is to present researches that have transformed this discipline and aided its advancement. This book will prove helpful for students and researchers in the fields of radio science and related fields like astronomy, radiation and nuclear physics.