Augmented by new chapters on cybertechnology, threats to space systems, and artificial intelligence, the 2nd Edition of this book on war in space takes a look at scenarios in which a country's vital technological capabilities could be disarmed by disruption of satellite communication or destruction of a satellite. It describes the aggressive actions that nations could take and the technologies that could be leveraged to gain power and control over assets, as well as to initiate war in the theater of outer space. The explosion of the use of artificial intelligence in multiple applications leads to an extensive discussion of how AI can contribute to either prevent or enact war scenarios in both earth and space-based systems. In addition, the book discusses our past and present political climate, including updated information on which countries currently have the space-faring and disarming capabilities and who the aggressive players are. In addition, there is a glimpse into the challenges of establishing future space settlements - how to manage resources extracted from celestial bodies and what’s required to maintain peace among nations. Finally, it addresses promising research and space technology that could be used to protect us from those interested in destroying the world's vital systems and controlling space.