RANK

OBJECT

SIZE

(light years)

DESCRIPTION

DISCOVERED

1

Hercules–Corona Borealis Great Wall

9.7-10 billion

Discovered through gamma-ray burst mapping. Existence as a structure is disputed.

2014

2

Giant GRB Ring

5.6 billion

Discovered through gamma-ray burst mapping. Largest-known regular formation in the observable universe.

2015

3

Huge-LQG

4 billion

Decoupling of 73 quasars. Largest-known large quasar group and the first structure found to exceed 3 billion light-years.

2012–2013

4

The Giant Arc

3.3 billion

Located 9.2 billion light-years away.

2021

5

U1.11 LQG

2.5 billion

Involves 38 quasars. Adjacent to the Clowes-Campusano LQG.

2011

6

Clowes–Campusano LQG

2 billion

Grouping of 34 quasars. Discovered by Roger Clowes and Luis Campusano.

1991

7

Sloan Great Wall

1.38 billion

Discovered through the 2dF Galaxy Redshift Survey and the Sloan Digital Sky Survey.

2003

8

South Pole Wall

1.37 billion

The largest contiguous feature in the local volume, comparable to the Sloan Great Wall at half the distance. It is located at the celestial South Pole.

2020

9

King Ghidorah Supercluster

1.3 billion

Consists of at least 15 clusters plus other interconnected filaments. It is the most massive galaxy supercluster discovered so far.

2022

10

Big Ring

1.3 billion

Made up of galaxy clusters.

2024