How does expansion effect gravity, I don't know exactly. Does it stretch it as the same with light. Whilst light comes in various wavelengths, gravity as far

How does expansion effect gravity, I don't know exactly. Does it stretch it as the same with light. Whilst light comes in various wavelengths, gravity as far as we know - does not. But a wonderful question and one day we will know for sure. As with scale - difference would become more pronounced at scale.