During the XB-1's historic flight on Tuesday—its 12th test flight overall—the aircraft stayed supersonic for around four minutes before breaking the sound barrier two more times during the same outing ...

New research shows that the speed of sound on Mars varies considerably by location and temperature. The findings could help scientists understand sounds picked up by Martian rovers, as well as make ...

In case you've faced some hurdles solving the clue, Speed-of-sound word, we've got the answer for you. Crossword puzzles ...

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 ...

The footage showed that the missile was launched vertically from the frigate and then it moved towards the horizon at an angle.

MILAN (AP) — 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, died in a crash ...

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 ...

New research shows that the speed of sound on Mars varies considerably by location and temperature. The findings could help scientists understand sounds picked up by Martian rovers, as well as make ...