Systems approach to astrobiology Systems thinking analysis is widely applied for solving complex problems in engineering and certain other fields. Astrobiology which inherently involves complex problems can benefit from such an approach. This book provides background and methodology of this approach for professionals upper level undergraduate students and others with an interest in astrobiology topics. In addition this book constitutes a valuable resource not only for astrobiology but also for its foundational disciplines e.g. chemistry physics astronomy biology biochemistry geology and planetary geology