Galaxies are the building blocks of the universe. Clusters of galaxies, and clusters of clusters of galaxies, called superclusters, make up the structures in the geography of the universe. In this ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data is revealing new information about the dark universe. Hidden information in maps of galaxies spread across the ...

In the century since Hubble's pioneering work, astronomers like me have learned that the universe is vast and contains trillions of galaxies. In 1610, astronomer Galileo Galilei used the newly ...