The dramatic expansion of space capabilities has transformed space systems into critical infrastructure for many aspects of human society and for national security. With opportunities for global societal benefits come risks. The global governance framework remains weak and contested. Vulnerabilities now exist with space systems, and these are especially pronounced in the face of cyberthreats. We now confront a volatile “space-cyber nexus,” which this essay series explores across a diverse and wide range of perspectives. The series is organized around three themes: space security and risk; international governance challenges; and global perspectives and the pursuit of inclusivity.