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As is known, after the Big Bang and the subsequent development of events, matter was distributed almost uniformly in all directions, at least so scientists considered until recently, until they discovered a strange anomaly known as the “Great Attractor”, which is a huge accumulation of matter , which has a noticeably higher average density than the neighboring regions of the visible part of the universe.
By the mid-eighties of the last century, astronomers have determined that galaxies that form local groups fly together. Our magnificent Milky Way, together with a group of galaxies in Virgo, to which it belongs, together with a giant supercluster of galaxies in Veronica’s Hair, along with other neighboring metagalactic objects, flies at a speed of about six hundred kilometers per second in the direction of some incomprehensible but colossally powerful center of mass. Even the first calculations showed that the total gravity of this formation is approximately the same as an object with a mass of several tens of thousands of such large galaxies as ours or the neighboring Andromeda nebula.
The tangible part of the visible region of the Universe is continually drawn into this strange gravitational funnel, where the amount of matter, even in terms of cosmic standards, has already accumulated into truth, which is difficult even to imagine. If we try to resort to analogy, then we can say that the substance in the center of our galaxy also inevitably slips into a giant black hole located in its core.
The American astrophysicist Alan Dressler gave the name to this invisible all-absorbing object, he called it the Great Attractor, or the Great Source of Attraction (“attraction” means “gravitation”).
According to modern ideas, the Great Attractor is a gravitational anomaly of an obscure nature, located at a distance of about 250 million light-years from us in the constellation Naugolnik presumably is a huge supercluster of galaxies. Its mass reaches approximately 5 x 10-16 degrees of solar masses.
The origin of this object is a continuous controversy. There is an assumption, for example, that this is – "Space Strings", a supermassive relic formation that appeared at the time of the early Universe, a kind of threadlike anomaly, a curvature of space-time. However, until this theory has not been confirmed and scientists believe that this is just a supercluster of galaxies, formed randomly, although it remains unclear why such an “accident” is observed only in one part of the universe …
The question is also heated by the fact that the masses of all the galaxies observed in the attractor are clearly not enough to explain the observed effect. Most likely there are hidden some unknown supermassive structures that are part of the Great Attractor, but they are not yet able to find their scientists. As a variant, the assumption is considered that there was concentrated a huge amount of dark matter, also known to astronomers only theoretically. Moreover, even if this theory is confirmed, the question remains open, why dark matter accumulated there, and not somewhere else, or why it is not evenly distributed at all.
So how did the giant clusters of galaxies that led to the advent of the Great Attractor arose? The only force that structured and ordered all matter after the Big Bang was gravity. However, at metagalactic distances this force is very weak, and until it brings everything to the appropriate state, it will take too much time ..
After the advent of super-powerful computers, similar processes were tried to simulate on a computer. As a result, the output received two options, both of which gave in the end a negative answer to the question. In the first variant of the solution, all cosmic structures-superclusters and clusters of galaxies, as well as individual galaxies-arose, but this took a very long time, which did not correspond to observations. In the second case, only galaxies and their clusters were formed, but no “Great Attractor” arose.
The results of the simulation led to new scientific speculations. For example, Nobel laureate Hannes Alfvén expressed the idea that in physics there is one more interaction, yet unknown to us.
Or maybe there is an invisible supermassive black hole? A colossal relic clot of matter that has collapsed yet the beginnings of the star-forming epoch or the remnants of the oldest, the very first galaxies that were absorbed by their nuclei, and then merged to form one center of mass?
Or maybe it is still more interesting and this is the point at which our universe will eventually collapse, in order to start a new life cycle?