Key Points - NASA's X-43A hypersonic research vehicle, part of the "Hyper-X" program, still holds the world record for an air-breathing aircraft, achieving a speed of Mach 9.64 (6,363 mph) in its ...

July 22 (UPI) --NASA's quest for a quieter supersonic jet passed an early test after its X-59 aircraft was able to taxi at low speed at a manufacturing plant in California. The space agency on Tuesday ...

NASA's X-59 quiet supersonic aircraft has begun low-speed taxi tests, a final step before its first flight later this year. The X-59 is designed to reduce sonic booms to a "gentle thump," potentially ...

NASA's X-59 "quiet" supersonic jet continues to make its way toward the runway. The X-59 was designed from the ground up to fly faster than the speed of sound without generating the thunderous sonic ...

NASA's X-59 is taking slow steps towards supersonic flight, beginning taxiing tests at US Air Force Plant 42 in Palmdale, California. The final part of Phase One development, it's the precursor to ...

Breakfast in New York, midmorning snack in London. Taxi tests are underway on a highly anticipated supersonic plane designed to quietly break the sound barrier — and slash flight time between New York ...

NASA's X-59 supersonic aircraft is nearing its first flight after completing low-speed taxi tests, with medium- and high-speed tests to follow. Designed to produce quiet "thumps" instead of sonic ...

Aerodynamic and structural data on the X-66 were obtained from wind tunnel tests of a 5.3%-scale model in the Transonic Unitary Plan Facility at NASA’s Ames Research Center in California. Credit: ...