Introduction -- pt. I. The building blocks of spacepower theory. Theory ascendant? Spacepower and the challenge of strategic theory / John B. Sheldon and Colin S. Gray -- On the nature of military theory / Harold R. Winton -- International relations theory and spacepower / Robert L. Pfaltzgraff, Jr. -- Real constraints on spacepower / Martin E.B. France and Jerry Jon Sellers -- pt. II. Space and national security. Increasing the military uses of space / Everett C. Dolman and Henry F. Cooper, Jr. -- Preserving freedom of action in space : realizing the potential and limits of U.S. spacepower / Michael Krepon, Theresa Hitchens, and Michael Katz-Hyman -- Balancing U.S. security interests in space / Michael E. O'Hanlon -- Airpower, spacepower, and cyberpower / Benjamin S. Lambeth -- pt. III. Civil, commercial, and economic space perspectives. History of civil space activity and spacepower / Roger D. Launius -- Commercial space and spacepower / Henry R. Hertzfeld -- Merchant and guardian challenges in the exercise of spacepower / Scott Pace -- pt. IV. The future of spacepower. Emerging domestic structures : organizing the Presidency for spacepower / John M. Logsdon -- Space law and the advancement of spacepower / Peter L. Hays -- Future strategy and professional development : a roadmap / Simon P. Worden.