NASA’s X-43D was designed to fly at speeds approaching Mach 15 — roughly 11,000 miles per hour — using a hydrogen-fueled ...
In the early 2000s, NASA was among the first to achieve sustained hypersonic flight. As part of the broader Hyper-X program, ...
And there you have it. After several years of hard work, the first test flight of what is to our knowledge America's first privately-developed hypersonic aircraft took place last week, opening the ...