Northrop Grumman's proposed blueprint for a pair of polar-orbiting satellites intended to provide next-generation ballistic and maneuvering hypersonic missile detection over Arctic regions passed muster with U.S. Space Force Space Systems Command, clearing the project to proceed toward the next planned milestone: critical design review. On May 24, the company announced its Eagle-3 spacecraft -- Northrop Grumman’s solution for the U.S. military’s Next Generation Overhead Persistent Infrared Space, Block 0 Polar (NGP) requirement -- had completed preliminary design review. In...