I've tried to google the answer but either I'm not reading it clearly or there is no actual answer, but is space materialistic? I know there are various analogies but is there an actual answer? Is 'empty' space itself an object? From what I understand stars and galaxies rest on the 'fabric' of space which causes it to dip thus producing gravity, but is space fabric even a real thing? If not then gravity itself doesn't really exist, it's just an effect of warped space and if the universe had no matter in it, there would'nt be any gravity? Someone please clear this up for me, if there is a common theory or something which is most likely the case but isn't confirmed yet please tell me what that might be.