Another famous supercluster, known as the Great Wall, is a sheet of galaxies 250 million light years away. It measures 200 million by 600 million light years in area with a thickness of only 20 million light years. About 1016 solar masses the Coma-Hercules superclusters make up the bulk this wall. In the schematic below only part of the great wall--the Coma supercluster--is visible. The Hercules cluster (composed of Abell clusters A2147, A2151 and A2152) is not pictured in the schematic but it would be up above and adjacent to the coma supercluster.

Stellar maps, published in 1986, were a great surprise to the astrophysicists. They had expected to find relative uniformity above the scale of the already-familiar galaxy clusters. Instead, the first surveys showed--and subsequent surveys have confirmed--that great clusters of galaxies are arranged in thin sheets or long filaments. The longest sheet detected, called the "Great Wall," extends hundreds of millions of light years across the maps.
North and South, Sheets and Voids
(Courtesy:
Margaret J. Geller and Emilio E. Falco, Harvard-Smithsonian Center for
Astrophysics. Credits: Geller, da Costa, Huchra, and Falco.)
Large-scale structure in the universe in the northern and southern galactic hemispheres. Each of the 9,325 points in this image represents a galaxy. The Earth lies at the center; unmapped regions to the top and bottom are inaccessible because the plane of the Milky Way obscures them. Note the large-scale patterns in both hemispheres, like the Great Wall stretching across the northern hemisphere.
The Great Wall
This 3D presentation of the CFA Galaxy Catalogue shows where the main concentration of galaxy clusters are in our observable universe.

Our Milky Way galaxy is at the
very center. On this plot only galaxies from the most dense regions
are shown. The red circles show the location of galaxy clusters which
were taken from the ACO Catalog. The Great Wall is the semi-circle
of galaxies at the top right part of the graph. Note that it contains
several red circles of clusters. Two of them are the Coma and Hercules
superclusters.
Of course,
the question to be answered is HOW? How could something so immense,
so close and a total anomaly, exist under the present inflation theory,
when only intermediate granularity can be expected?
Within the framework of the present Standard Model, there is no explanation
at all for something like this, yet under the Standard Model II, such an
anomaly suggests a rift has occurred, an unbelievable tearing of one surface
in a universe of a staggering number of surfaces within this finite region
of space! Because of this rift, the transmission of all nuclear-gravitational
forces are disrupted, leading to what one might presume to be an incessant
drift of matter towards the epicenter of the tear (now 600 million light
years long), which as a matter of chance slowly continues to lengthen.
Such a possibility
as this seems unlikely, it not theoretically impossible, implying a fundamental
topological variance to the rule. How, one must ask, could surfaces
as merely form and not structure, tear in the first place?
It would seem
too, unlikely that gross mass objects might convene in the direction ot
the tear, but rather be drawn apart, because of a slight absence of IDDI
unable to be carried across this rift by the one surface involved, in this
case by an attractive IDDI. If one were to consider also this impact
on close range nuclear forces and electromagnetic forces of repulsion,
a general drift of matter in the direction of the tear from all directions
around it, is more likely.
It also seems clear
that both theoretically and observationally, such a tear can never mend
itself; the Great Wall being here to stay forever; a permanent
reminder of why the Big Bang hypothesis is incorrect.