DARPA and Boeing once set out to build a reusable hypersonic spaceplane capable of launching satellites daily and reshaping orbital warfare. What followed was a quiet cancellation, lingering secrecy, ...

Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their ...

Stratolaunch may conduct a hypersonic test flight in the coming days from California's Mojave Air & Space Port. The company uses the world's largest aircraft, Roc, to launch its uncrewed, reusable ...