I assume you want to know why communication in space uses only radio. The reason is that there is nothing else.
Sound cannot travel through a vacuum, as it requires a fluid medium (or even solid) such as air or water. The vacuum of space has no air or water.
It is possible to use wired systems if there is any way to string the wires.
sound waves
Light waves do, but sound waves cannot, because in space is no medium to carry the vibration. Radio, TV and others can travel in space also.
wavelength & frequency (but remember frequency is only a derivative of wavelength for any given propagation velocity) 'Amplitude' also varies (bigger waves!)
Let us think about the propagation of energy from one point to the other. This propagation could be done only in two ways. One by the movement of the particles. For example in case of electrical energy transfered from the source to the bulb via a wire is due to the electrons flowing from the source to the filament of the bulb. But in case of dropping a stone and producing the disturbance to get propagated we rely on the waves. In case of wave propagation no particle are carried along with the wave propagation. The particles only excecute simple harmonic vibration, but the energy is transfered from one particle to the other. So only two options. Hence light being an energy could be propagated one by waves or the other by photons.
Radiation
Electromagnetic waves are the only form of energy that does not need a medium for propagation.
No. Only the movement of the individual particles is SHM.
No. Only of radio waves.
sound waves
Light waves do, but sound waves cannot, because in space is no medium to carry the vibration. Radio, TV and others can travel in space also.
Our eyes cannot sense radio waves. Although radio waves, visible light waves, X-rays and gamme rays are all part of the Electromagnetic Spectrum, our eyes are only equipped to detect the part of the spectrum known as visible light.
astronomy using radio waves, rather than visible light. visible light and radio waves are essentially the same, only radio waves have a much longer wavelength. not everything emits light in the visible band, many otherwise invisible objects can only be detected using extreme wavelengths.
wavelength & frequency (but remember frequency is only a derivative of wavelength for any given propagation velocity) 'Amplitude' also varies (bigger waves!)
The radio waves don't follow the car when it is moving fast.
For propagation of sound only a material medium is enough and not light. So it could travel thorugh darkness
Let us think about the propagation of energy from one point to the other. This propagation could be done only in two ways. One by the movement of the particles. For example in case of electrical energy transfered from the source to the bulb via a wire is due to the electrons flowing from the source to the filament of the bulb. But in case of dropping a stone and producing the disturbance to get propagated we rely on the waves. In case of wave propagation no particle are carried along with the wave propagation. The particles only excecute simple harmonic vibration, but the energy is transfered from one particle to the other. So only two options. Hence light being an energy could be propagated one by waves or the other by photons.
Radio waves ... including microwaves ... and X-rays are different only in wavelength (frequency). The sun radiates all of them.