A paper describing the largest structure in the Universe (a collection of quasars) may cast new light on homogeneity. Largely unedited interviews at http://youtu.be/YIK8luKW3mk (apprx 22 mins). The paper is at: http://arxiv.org/abs/1211.6256 Discussing it here are Mike Merrifield and Ed Copeland. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html