A newly released image shows the sound barrier being broken on February 10 as Boom Supersonic’s XB-1, America’s first civil ...

Sound waves travel at approximately 750 mph at sea level, but slow down at higher altitudes. The speed of sound is called "Mach 1." Supersonic refers to speeds from Mach 1 to Mach 5 (1 to 5 times ...

As an airplane flies faster than the speed of sound, it "pushes" on the sound waves in front of it. But sound waves obey the speed limit—they can't travel faster than the speed of sound.

A person fires a starting pistol. A distant observer stood 200 metres away (measured using a 20 m tape measure or trundle wheel) records the time between seeing the flash of light from the ...

Although sound travels quite fast, it is still possible to measure its speed in air. To do this, you need to measure the time it takes a sound to travel a measured distance. To reduce errors ...

Boom Supersonic, the company aiming to create commercial planes that can travel faster than the speed of sound, have ...

SPEEDY flights that blast off faster than the speed of sound look set to return to skies as a US company reveals huge progress on a new Concorde-like service. Boom's XB-1 jet, dubbed the "Son of ...

Commercial flights faster than the speed of sound have taken another step closer to reality. Boom Supersonic announced Monday that its airliner could fly above Mach 1 without producing a sonic ...