Produced by the Sloan Digital Sky Survey, this 3-D map of the distribution of galaxies shows Earth at the center, and represents each galaxy with a single point . Large astronomical surveys, such as SDSS, rely upon a model of Baryon Acoustic Oscillations to provide a cosmological тАЬstandard rulerтАЭ for determining length scale. Ohio State UniversityтАЩs Chris Orban and David Weinberg have employed Ohio Supercomputer Center resources to simplify and better characterize that BAO model. M. Blanton and SDSS