What atmosphere is heaven in?

The only glimpse we get of that kind of detail is from Near Death Experiencers who tell us such details as the music that is everywhere and the ability to see and hear pretty much everything at once. One person said the sky in heaven was a golden yellow color but also said that this did not do justice to what he saw since it is near impossible to describe in human Words what heaven was like. he said that he could also "see" and "smell" music while he heard it in heaven. It is obviously a very different place that our carbon based earth.