The universe is really, really big, so simulations of the universe must also be really, really big. The latest, run by a team including Ohio State CCAPP astrophysicist Paul Sutter, followed the evolution of over 1 trillion particles of dark matter. It's one of the largest simulations ever performed, and you can visit it. The team created a website devoted to the simulation. The site has both a scientific and a public side, where people can view visualizations of the data or fly through the simulation. With such large simulations, cosmologists can prepare for upcoming galaxy surveys, and comparing this simulation to the real universe helps scientists understand the nature of dark matter and dark energy.