Financial Times journalists Demetri Sevastopulo and Kathrin Hille first reported the August test of the potential fractional orbital bombardment system, or FOBS. As its name implies, a FOBS launches like a traditional intercontinental ballistic missile then enters a brief but stable orbit before de-orbiting after just a fraction of a trip around Earth.
Where a traditional ICBM briefly escapes the atmosphere as it predictably arcs toward its target—over the North Pole, in the case of a Soviet or Chinese ICBM heading for the United States—a FOBS actually stays in orbit just long enough that, depending on its trajectory, it can streak toward a target from any of several directions.