Developed by NASA and the USAF's National Hypersonic Flight Research Facility, the X-24C aimed to build on the advancements of the X-15 and X-24B programs, with plans to reach speeds of Mach 8 ...

It offers an absorbing glimpse into NASA’s X-15 rocket plane, which flew from 1959 to 1968, and we've got an exclusive high-altitude clip to share. That legendary hypersonic rocket-propelled ...

Dean Conger/Corbis/Getty The X-15 was a 1960s trailblazer Known as a scramjet, this engine combined the rush of air into a jagged intake with jet fuel - to accelerate to hypersonic speeds.

Scott Crossfield set aviation records by breaking Mach 2 in the D-558-2 Skyrocket and pioneering the X-15 program, pushing ...

The absolute upper limit for hypersonic flight is about Mach 15, says Goyne ... says Goyne who notes that both NASA’s X-43 and Boeing’s X-51 were launched from the bottom of B-52 aircraft ...

Most people can withstand up to 4g to 6gs. Fighter pilots with training and special suits can withstand G forces of around 9g ...

Getty Images Nasa's unmanned X-43A hypersonic test-bed is the fastest ... But it is "at least 15 to 20 years" before any such plans could be commercially viable, says Ellis Taylor of Flight ...

The Chinese military hardware on display at the country's largest air show in Zhuhai illustrates its ambitions, and in some ...

Russia is suffering nearly 2,000 casualties a day trying to recapture the Kursk region and seize ground along the main front ...

An interview with "Edge of Space" director Jean de Meuron, as well as a clip from the new film about NASA's famous X-15 ...