Hydrogen-fuelled jets at Mach 12? Australia’s Hypersonix is pioneering hypersonic flight with clean propulsion, changing ...

Although few people ever get the chance to travel at the speed of sound, it is an alluring flight goal and an impressive technological feat. Though average people have flown at high speeds on ...

DUBAI — Iran claimed Tuesday to have developed a hypersonic missile capable of traveling at 15 times the speed of sound, adding a weapon to its arsenal as tensions remain high with the U.S. over ...

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 ...

MILAN — Extreme athlete Felix Baumgartner, the first skydiver to fall faster than the speed of sound during a 24-mile leap through the stratosphere more than a decade ago, was killed in a crash ...