NASA’s second X-43A hypersonic research aircraft flew successfully today, the first time an airbreathing scramjet powered aircraft has flown freely. The unpiloted vehicle’s supersonic combustion ...

The set of problems that have never had a “just run it in the tunnel” has never had a hypersonics set. What X-43A has brought with it forever is that it made reality confront an engineering problem ...

expertise with hypersonic vehicles and spacecraft. On Saturday, a NASA Dryden Flight Research Center B-52 aircraft flown from Edwards Air Force Base, Calif., carried the X-43A off the California coast ...

NASA's X-43A hypersonic demonstrator is gearing up for its second Mach 7 flight attempt next month, the outcome of which may determine whether the program will make a third flight attempt at Mach 10.

NASA has slipped the next test of the X-43A hypersonic testbed until late January 2004, because of an intermittent failure in an actuator associated with its air-launched Pegasus booster. NASA's B-52 ...