Sound is composed of particles moving in a continuous wave. Daniel A. Russell, CC BY-NC-ND. Controlling where sound goes is difficult because of a phenomenon called diffraction – the tendency of ...

To understand why there’s no sound in space, first consider how sound works. Sound is a wave of energy that moves through a solid, a liquid or a gas. Sound is a compression wave .

While traditional sound cannot travel through space, certain waves can move through special forms of matter like plasma. Plasma, found in some parts of the universe, is a gas made up of charged ...

The process used to direct the sound waves not only guides the waves in one direction but the researchers say it also amplifies them. From ETH Zurich: “Schematics of the experimental set-up ...

Identify the features of a sound wave and learn about pitch, frequency, amplitude and loudness in this guide for KS3 Physics students aged 11-14 from BBC Bitesize.