The last week of October, NASA successfully tested its first quiet supersonic jet in a short, low-speed flight over the California desert. The purpose of the test was not to review speed, but to check ...

What role will F-15 jets play in the future of supersonic flight?

A supersonic jet plane designed to make very little noise took flight for the first time this week, cruising over the southern California desert just after sunrise in what could be the first step ...

NASA is working on an experimental piloted aircraft designed to fly faster than sound, all without producing the annoying, if not sometimes alarming, sonic booms.