The Largest Structure in the Universe Spans 4 Billion Light Years --"Nixes Accepted Theory" (2013 Most Popular) | Ciencia-Física | Scoop.it
From www.dailygalaxy.com - January 1, 2014 1:46 PM
    The largest known structure in the universe, "large quasar group" (LQG), challenges the Cosmological Principle, the assumption that the universe, when viewed at a sufficiently large scale, looks the same no matter where you are observing it...