Is this what our universe looks like?
"The Millennium Run used more than 10 billion particles to trace the evolution of the matter distribution in a cubic region of the Universe over 2 billion light-years on a side. It kept busy the principal supercomputer at the Max Planck Society's Supercomputing Centre in Garching, Germany for more than a month. "
You can download high-res images and movies of this simulation!
http://www.mpa-garching.mpg.de/galform/virgo/millennium/Jan 26th 2011