NASA's about to fly its powerful X-plane. It could make history.
After the first test flights in 2025, Lockheed Martin will transfer the plane to NASA. Then, after acoustic testing over ...
Aspen Public Radio2h
The company planning a successor to Concorde makes its first supersonic test
Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed supersonic jet. The company is also working on a supersonic passenger airliner.