Abstract
Galaxies may be the building blocks of the Universe, they are not the largest structures we can see. They are not generally isolated, they like to group together. The phrase which is used to describe the way galaxies are distributed over cosmological distances is ‘large-scale structure’. ‘Cosmic structuresș looks at the structure of galaxies and explains why it is such a hot topic in modern cosmology. The distribution of matter on large scales is usually determined by spectroscopic surveys that use Hubble's Law to estimate distances. Despite all that we know now about the structure of the Universe, we do not know how the Universe contrived to be the way it is.
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