Venkatesh Rao@vgrWhen I was a kid, pop science explained universe at large scales with cartoons of expanding polka-dotted balloons...smithsonianmag.comMeet the BOSS, the Largest Structure in the Universe (So Far)Astronomers recently discovered a wall of galaxies 1 billion light years across, larger than anything else yet identified in the cosmos2:08 AM · Mar 21, 20162 Likes