An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a test ...

An aircraft developed by Boom Supersonic became the first independently funded U.S. jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during ...

Why was the Boom Supersonic flight significant? It was a step toward reviving supersonic commercial travel, which has been on hiatus since the Concorde jet was grounded more than two decades ago ...