Nuclear propulsion : an introduction / Nuclear-thermal-rocket propulsion systems / Application of ion thrusters to high-thrust, high-specific-impulse nuclear electric missions / High-power and high-thrust-density electric propulsion for in-space transportation / Review of reactor configurations for space nuclear electric propulsion and surface power considerations / Nuclear safety : legal aspects and policy recommendations / Radioactivity, doses, and risks in nuclear propulsion / The Chernobyl accident : a detailed account