American company Boom Supersonic just broke the sound barrier with a civilian plane. What exactly is supersonic travel, and ...

American firm Spike Aerospace is also developing a supersonic business jet ... of up to 128 passengers and cruised at Mach 2. It regularly travelled from London to New York in around three ...

It’s now the first piloted non-military aircraft to break the sound barrier since the Concorde was retired from service in 2003. It’s the first step in Boom’s ambitious goal to have supersonic ...

Supersonic planes will burn significantly more fuel than current aircraft, resulting in higher emissions of carbon dioxide, ...