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 the ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. This exercise was largely theoretical: The researchers found that the answer, which is ...

Scientists have discovered the fastest possible speed of sound. A research collaboration between Queen Mary University of London, the University of Cambridge and the Institute for High Pressure ...

Lower-pitched sounds travel more slowly on Mars than higher-pitched ones, according to new data from NASA's Perseverance rover. When you purchase through links on our site, we may earn an affiliate ...

On Mars, the speed of sound depends on its pitch. All sound travels slower through Mars’ air compared with Earth’s. But the higher-pitched clacks of a laser zapping rocks travels slightly faster in ...

The universal speed limit of any kind of wave – be it electromagnetic or gravitational – travelling through a vacuum has been known since Albert Einstein developed his theory of special relativity in ...

A selfie taken by NASA’s Perseverance rover on September 10, 2021. Image: NASA/JPL-Caltech/MSSS Using a microphone, a laser, and some crafty mathematics, a team of scientists has measured the speed of ...