No, it's not my **** and it's not your mom. The Huge-LQG (also called U1.27), which stands for Huge Large Quasar Group, consists of 73 quasars and measures 4 billion light-years across. It is the most massive structure known in the observable universe. It was discovered in January 2013 by a team led by Dr. Roger G. Clowes at the University of Central Lancashire. The astronomers used data from the Sloan Digital Sky Survey. The Huge-LQG is estimated to be approximately 1240 megaparsecs (4 billion light-years) The Sloan Great Wall, discovered in 2003, has a length of 423Mpc, which is only just consistent with the cosmological principle. BTW, the universe is NOT 13 billion light years in size, as the man says at 3:40. Because of expansion, the estimated size of the observable universe is 156 billion light years in diamiter. ...or something.