Scientists from the CMS collaboration at CERN have measured the speed of sound in the quark-gluon plasmas with record precision, a key step to understanding how matter behaved in the very early ...

On June 5, NASA’s experimental X-59 plane went supersonic for the first time. The aircraft zoomed through the sky at a top speed of about 713 miles per hour, or Mach 1.1, and an altitude of 43,400 ...

Nasa's spiritual successor to the Concorde has successfully surpassed the speed of sound without generating a thunderous ...