This book provides an in-depth investigation of the concept of space power and devises a novel conceptual framework for empirically measuring and comparing different typologies of space actors on the basis of clearly defined criteria. In turn, the book identifies a comprehensive set of conditions required to achieve and maintain the status of space power and explores the main political, security, and socio-economic stakes involved. Building on this basis, the book conducts a comparative assessment of the major space actors, the underlying aim of which is to examine Europe's relative position in the space arena and put into perspective its proclaimed goal to assert itself as a space power, with all of the means and resources this would entail. Given its scope, the book represents a valuable and versatile tool to support European decision-making and offers key insights for executives, space professionals and scholars alike.