Astronomers have just discovered the largest thing in the universe (so far)--a large quasar group (LQG) that extends 4 BILLION light years across. That is over 3 times larger than current cosmological theory says should be able to exist! There are numerous stories on line about it. Just Google "Large Quasar Group" and go from there. Just to give an idea of how enormous that is, the Milky Way is 100,000 light years across, and the galaxy nearest to us is 2.5 million light years away.