This plot is a representation of some of the results from the latest Millennium Simulation (reference: Lemson et al. 2006. image credit: MPA-Garching). Each point on this plot represents a galaxy. Within each piece slice, distance from the center represents redshift, or distance, while placement around the circle represents direction. The blue and purple points are real galaxies. They show that the galaxies of the universe are not uniformly distributed but rather form filaments, clumps, and voids. The red points are simulated galaxies. The Millennium Simulation took 10 billion particles, placed them in an initial configuration, and let them evolve forward according the rules of lambda-CDM cosmology (lambda = the cosmological constant = dark energy. CDM = cold dark matter). This shows that the simulation is capable of closely mimicking the observed large scale structure of the universe.