Can space-time expansion destroy light? I know that light shifts from high frequency(like gama rays) to low frequency (like radio waves) when traveling throw a gravitational field, this is called red shifting.
My question is: Is there a limit to this, what happens to the light wave when it can no longer stretch, does it get destroyed ?

Thanks, and sorry for the dumb question, just curios.

Edit:
From my knowledge and the internet :) Electromagnetic spectrum it states that light is an electromagnetic wavelength and the frequency which the wavelength travels up and down and the distance it's travel it's called spectrum and in that spectrum there is a frequency that is visible to us, but the spectrum is very large, my question is just for curiosity, I want to know if we know what happens when the light gets beyond the spectrum, can it? And I know that the expanding of space-time makes the light stretch from a high frequency spectrum to a low one, but what happens when you go to the limit of the spectrum ? can the wavelength be stretch to the point of "breaking" ?
The stretching has no limit. Light can be redshifted to infrared, then to microwaves, to radio waves. There is no limit. This is because there is no medium that carries the waves to be stretched. There is no limit of the spectrum. It runs from arbitrarily long wavelengths, to arbitrarily short. 

Instead of thinking of waves being stretched you could use a model suggested by Feymann. Each photon is like a small clock with one hand. THe colour of the light is the time it takes for the hand to go round. The photons in visible light turn a thousand trillion times a second. Radio waves only a million times a second. There is no limit to how slowly the hand can turn. Red-shifting is the slowing of the hand. There is no need to think of something stretching, and nothing to "break".