Illustris Project

The Illustris Project was a series of cosmological simulations (simulations of the universe) that began with conditions created by the Big Bang and ran to the current day, producing snapshots that correspond in many ways to the observable universe, and in visual form, are now popular illustrations in explaining various aspects of the universe's history. The main simulation used 19 million cpu hours.

The IllustrisTNG Project is a subsequent series of simulations modeling more effects, begun in 2016.