The Shapley Supercluster is the largest known galaxy supercluster, located about 650 million light-years away.

Galaxy superclusters typically span hundreds of millions of light-years.

Galaxy superclusters can contain thousands of galaxies.

Galaxy superclusters can have masses of up to 10^16 solar masses.

Galaxy superclusters have very low densities, typically around 10^-27 kg/m^3.

The gas in galaxy superclusters is typically very hot, with temperatures of around 10^6 K.

Dark matter is the main component of galaxy superclusters, making up around 85% of their mass.

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

Galaxy superclusters play a role in shaping the large-scale structure of the universe, are the sites of galaxy formation, and are the source of cosmic rays.

There are estimated to be thousands of galaxy superclusters in the observable universe.

Galaxy superclusters are typically separated by distances of around 1 billion light-years.

Galaxy superclusters are expected to continue to grow and merge over time.

Studying galaxy superclusters is challenging due to their large size and distance, the faintness of their light, and the difficulty in distinguishing them from other structures.

Future research on galaxy superclusters will focus on studying their formation and evolution, mapping their distribution and properties, and understanding their role in the large-scale structure of the universe.

CL J0018-0637 is the most distant galaxy supercluster ever observed, located about 13 billion light-years away.