Key Points and Summary - NASA’s X-43A wasn’t a paper study—it was a 12-foot, hydrogen-fueled experimental jet that proved an air-breathing engine could fly at nearly ten times the speed of sound. -It ...

"Hypersonic" refers to speeds over Mach 5, or five times the speed of sound. That's approximately 3,800 miles per hour, a pace that could take you all the way around the equator in less time than it ...

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 ...

Could a hypersonic vehicle take flight this weekend in the deserts of Southeastern California? It appears Stratolaunch, an aerospace company based in Mojave about 100 miles north of Los Angeles, is ...

Stratolaunch may conduct another hypersonic test flight this weekend from California's Mojave Air & Space Port. The flights are part of a Department of Defense program to test advanced capabilities ...