But while the successful test flight of XB-1 shows that supersonic flight without sonic booms is technically feasible, the ...

You might be wondering why this is news. Since Chuck Yeager’s first sonic boom in 1947, thousands of military aircraft have broken the sound barrier. Even some civilian aircraft have done it: the ...

The Colorado-based company says specialized photography from NASA shows the shock waves as Boom’s supersonic demonstrator achieved supersonic. They also confirmed no sonic boom reached the ...