Quasar group is 4 billion light years wide and is the largest structure in the universe

The largest known structure in the universe has been discovered by an international team of astronomers. The large quasar group is 4 billion light years cross. Quasars are the nuclei of galaxies from the early days of the universe that undergo brief periods of extremely high brightness that make them visible across huge distances. These periods are ‘brief’ in astrophysics terms but actually last 10-100 million years. Since 1982 it has been known that quasars tend to group together in clumps or ‘structures’ of surprisingly large sizes, forming large quasar groups or LQGs.

The LQG also challenges the Cosmological Principle, the assumption that the universe, when viewed at a sufficiently large scale, looks the same no matter where you are observing it from.

If you liked this article, please give it a quick review on ycombinator or StumbleUpon. Thanks