The Shapley Supercluster is the largest known supercluster in the universe, spanning approximately 450 million light-years.

The Milky Way galaxy is located in the Laniakea Supercluster, which is approximately 500 million light-years across.

Superclusters typically range in size from 100 million to 1 billion light-years.

Superclusters typically contain thousands of galaxies, ranging from a few hundred to several thousand.

Superclusters typically have masses ranging from 10^14 to 10^16 solar masses.

Superclusters are extremely sparse, with an average density of only about 1 atom per cubic meter.

Superclusters can form through the gravitational collapse of matter, the collision of galaxies, and the merging of smaller clusters.

Dark matter is thought to provide the gravitational force that holds superclusters together.

The future of superclusters is uncertain. Some scientists believe that they will continue to grow and merge, while others believe that they will eventually disperse. We don't have enough information to say for sure.

Superclusters are important in the study of the universe because they help us to understand the large-scale structure of the universe, provide insights into the formation and evolution of galaxies, and help us to test theories of gravity.

The Coma Supercluster is the closest supercluster to the Virgo Supercluster.

The Norma Supercluster is the name of the supercluster that contains the Great Attractor.

The Shapley Supercluster is located behind the Milky Way.

The Perseus-Pisces Supercluster is located in the constellation of Pisces.

The Shapley Supercluster is the most massive known supercluster.