This picture show the current cosmological model based on a homogenous, isotopic, inflationary (accelerating) universe. You can see the big bang and subsequent rapid expansion and cooling. From there the cooling allows stars, galaxies and clusters to form as the Universe continues to cool and expand. The widening at the throat of the cone shows our current understanding that the Universe is going to expand faster and faster. As it does galaxies will recede away from us faster.