Boom’s XB-1 jet breaks sound barrier on first supersonic flight - Boom’s inaugural XB-1 supersonic test flight reached speeds of more than 850 miles per hour

More than two decades after Europe’s failed attempt at a supersonic airliner, the USA is on track to make it work. View on euronews

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California, on Tuesday.