Sonic the Hedgehog is everyone's favorite blue speedster, but he's racing toward an unexpectedly striking new look that fans ...

The XB-1 achieved supersonic flight on three shorter runs Monday, again without any sonic boom being heard or registered. The aircraft achieved a record Mach 1.14 sustainable speed with spurts as ...

When the X-59 goes supersonic, Brandon says it should produce a “door-closing kind of noise” that’s still audible from the ground but less alarming than a true sonic boom.

Physics & Chemistry We’ll Get to See NASA’s Sonic Boom-Less Supersonic Plane Next Week NASA is rolling the X-59 plane out of its hangar on January 12. Here's how you can watch live.

Another problem is the sonic boom, which current regulations prohibit over land, meaning Overture will be able to go supersonic only over the oceans.