The theory of the big bang goes that the universe started out as an infinitely dense partical or a singularity that for some random reason decided to expand creating all objects that exsist within that sphere of expansion. An early universe would have been much denser than it is today a night sky from planet surface would look very different it would be packed with Nebulae and young stars an incomprihensible amount of energy, rock, ice and other matter would streak through through space coliding with each other constantly in such a packed and chaotic universe Life would not exist long we would be swept back up in the tidal wave of creation that formed us pretty quickly.