Book excerpt: The Oxford Handbook of Space Security focuses on the interaction between space technology and international and national security processes. Saadia M. Pekkanen and P.J. Blount have gathered a group of key scholars who bring a range of analytical and theoretical perspectives to take an analytically-eclectic approach to assessing space security from an international relations (IR) theory perspective. Bringing together scholarship from a group of leading experts, this volume explains how these contemporary changes will affect future security in, from, and through space.