The South Pole Wall

     Astronomers have discovered a huge wall of galaxies hiding behind the Milky Way.  What they call the “South Pole Wall” extends 1.4 billion light years, wrapping like an arm around the backside of our local supercluster.  It rivals other large walls in size, such as the Sloan Great Wall, which is more than twice as far.  What makes this one so special is its proximity to us; it's the closest wall of such size that we’ve discovered so far.  It took so long to discover because of all the dust in the center of our galaxy blocking it from view.  Thanks to the mathematical modeling of galactic redshift, astronomers were finally able to detect its mass.