When the Sky Goes Dark: How Celestial Navigation Is Powering the Next Generation of Drones, Missiles, and Spacecraft in a GPS-Challenged World

Introduction: The Return of an Unjammable Compass In an era defined by satellites, networks, and digital precision, it is easy to assume that navigation has become a solved problem. Yet modern warfare and geopolitical competition are exposing a critical fragility at the heart of global infrastructure: dependence on Global Navigation Satellite Systems (GNSS). From military…