Our Sun emits electromagnetic radiation across a spectrum ranging from radio waves to gamma rays.
Light is that part of the electromagnetic spectrum that our eyes can detect.
White Light White light is a mixture of all the wavelengths that the human vision system is capable of detecting. We generally think of daylight as white. However daylight is not always white. Because it is filtered by the Earth's atmosphere it changes colour depending on the angle at which the light is entering the atmosphere in relation to our position on the Earth. Particles in the atmosphere also have an influence.