Boom hopes its breakthrough will allow supersonic flights over land, making US coast-to-coast flights 90 minutes faster.

The method consists of drawing a grid across Sonic's face and joining up the lines, then adding on the legs and arms to reveal Sonic in a running position. I'll be honest, I wasn't convinced by what ...

During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a ...