The future of high speed travel did not arrive with a deafening crack over the ocean, but with a controlled, almost modest flight over the California desert. A slender experimental jet, built not to ...

Supersonic Jet Test This photo provided by Lockheed Martin shows the X-59 jet plane, which was built by NASA and Lockheed Martin and can move faster than the speed of sound, on Jan. 1, 2025, in ...