Boom Supersonic announced Monday that its airliner could fly above Mach 1 without producing a sonic boom audible from the ground. As Concorde could only fly supersonic over water, this discovery ...

It goes boom, seemingly killing Shadow, and almost certainly killing Robotnik. The day is saved. Sonic, Tails, and Knuckles regroup with Maddie and a healing Tom, and decide to race each other.

"During its historic first supersonic flight on January 28, 2025, Boom’s demonstrator aircraft, XB-1, broke the sound barrier three times without generating a sonic boom that reached the ground ...