isnt the answer that most of the stars are inside galaxies that are for the most part moving away from us and for that matter from each other (due to space itself expanding) with the speed of expansion or their apparent motion away from us proportional to their distance from us. This means most of the star light reaching us is red shifted (due to doppler effect of light) and since we humans cannot see this red shifted light, the night sky appears dark to us. anybody with a physics background can point out where I got this wrong, but I thought this is why the sky is dark.