Boom's Supersonic XB-1 jet became the “world’s first independently developed supersonic jet” to break the sound barrier Tuesday.

Also briefly traveling above the speed of sound was British Airways Flight 274, which hit a top ground speed of 814 mph during a trip to London from Las Vegas, per Flightradar24 data. The Airbus ...

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 ...

A typical value for the wind is about 12 m/s and the speed of sound in air is about 330 m/s. It is useful to be able to convert between everyday units such miles per hour (mph) to the units used ...