Large Quasar Group

The Large Quasar Group is one of the largest known structures in the universe. It’ s a clump of active galactic cores that stretches 4 billion light-years (or 1200 Megaparsecs) from end to end. The LQG would take 4 billion years to travel across at the speed of light, it’s that big.

In comparison, the distance between our nearest neighbor the Andromeda Galaxy and our own galaxy, The Milky Way, is 2,5 million light-years. This means the size of the LQG structure is 1600 times bigger than that distance.

Last but not least, the immense size means it challenges the Cosmological Principle - which means that the universe looks the same no matter who you are or where you are observing it from.