Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Let’s find out why. Sound moves slowest through a gas.

A tachyon (/ˈtækiɒn/) or tachyonic particle is a hypothetical particle that always travels faster than light. Most physicists believe that faster-than-light particles cannot exist because they are not consistent with the known laws of physics. No experimental evidence for the existence of such particles has been found.

An Italian experiment has unveiled evidence that fundamental particles known as neutrinos can travel faster than light.

When an airplane reaches the speed of sound, it makes a bang sound or an explosive noise it can be seen with the naked eye. This is often called “breaking the sound barrier.” The visible part of a sonic boom is actually air that becomes squashed by sound waves.

“Nothing can travel faster than the speed of light in a vacuum.” “Light in a vacuum always travels at the same speed.” Those additional three words in a vacuum are very important. A vacuum is a region with no matter in it.

P-waves

electromagnetic waves

Space is a vacuum — so it generally doesn’t carry sound waves like air does here on Earth (though some sounds do exist in outer space, we just can’t hear them). These radio emissions are then converted into sound waves, and the result is the spooky sounds NASA put together into a playlist.

Unlike light, sound requires a medium to travel through. As the vibrations of the particles reach your ear, your ear drum receives the vibrations which the brain then interprets as sound. In the vacuum of space, there are no (or very, very few) particles to vibrate, so sound cannot travel through this medium.