Book excerpt: Principles of Nuclear Rocket Propulsion, Second Edition continues to put the technical and theoretical aspects of nuclear rocket propulsion into a clear and unified presentation, providing an understanding of the physical principles underlying the design and operation of nuclear fission-based rocket engines. This new edition expands on existing material and adds new topics, such as antimatter propulsion, nuclear rocket startup, new fuel forms, reactor stability, and new advanced reactor concepts. This new edition is for aerospace and nuclear engineers and advanced students interested in nuclear rocket propulsion. - Provides an understanding of the physical principles underlying the design and operation of nuclear fission-based rocket engines - Includes a number of example problems to illustrate the concepts being presented - Contains an electronic version with interactive calculators and rotatable 3D figures to demonstrate the physical concepts being presented - Features an instructor website that provides detailed solutions to all chapter review questions