+ NASA Home + Ames Home + Sitemap + Staff Directory +Home COLUMBIA SUPERCOMPUTER + Scientific Projects + News NAS DIVISION IMAGES Dark Matter Halo Simulation Projected dark matter density-square maps of the simulated Milky Way-size halo at 13.3 billion years ago, 460 million years after the Big Bang. Credit: University of California, Santa Cruz + Feedback + Site Help + NASA Privacy Statement, Disclaimer, and Accessibility Certification Editor: Jill Dunbar Webmaster: Ryan Spaulding NASA Official: Rupak Biswas + Contact NAS Last Updated: January 31, 2007