Astronomer discovers immense structural anomaly in Bootes

“The gargantuan arc defies expectations set by the cosmological principle, which states that the universe should be homogeneous and isotropic on large scales. In other words, if you were to zoom out to view huge swaths of the cosmos, the distribution of matter should have a relatively smooth and even pattern, and large-scale clumps of material should rarely exceed 1.2 billion light years in length.”