Dark Matter

Dark Matter

To prove the existence of dark matter, scientists created virtual galaxies in the computer, in which virtual stars and virtual gravity were also present. The scientists replicated the process of galaxy formation through simulations in which many particles orbited a flat disk, just like our galaxy. Scientists were hoping to find just such a galaxy. They thought that maybe a rooster-shaped galaxy would form. But when the result came, there was no end to their wonder because there was not enough gravity to hold all these stars and give them the shape of a galaxy. Therefore, scientists increased the gravitational force in their model, or in other words, added dark matter. And as soon as he put it, the problem was solved. Dark matter holds the galaxy together. Dark matter actually acts as a bond that keeps the stars of the galaxies from drifting apart and keeps them in place.

Scientists are now discovering that dark matter not only holds galaxies together, but is also the substance that caused galaxies to form in the first place. Scientists believe that dark matter may have been created shortly after the Big Bang and began to accumulate. These eventually evolved into nuclei that served as seeds for later galaxies. But scientists have not been able to know what this dark matter is. We all find it strange because we don't know much about it yet. So far, this dark matter seems quite different from the stuff you and I are made of.

We cannot see it, we cannot touch it, but it is still around us. It is a supernatural type of substance that can pass through our body as if we do not exist. We may not know much about it. But the universe is full of it. It is probably about six times more abundant than normal matter, of which you and I are made. Without it, the universe could not run the way it does today. And since that's how the universe works, it's highly likely that dark matter exists.

Dark matter is also mysterious. But it has been discovered recently. Not by looking directly, but by observing its gravitational effects! Yes, dark matter gravity. It is the only sign by which we can identify it. The discovery of dark matter is due to a phenomenon called gravitational lensing. 

• It has been possible: Under this effect, an invisible mass in the path of light from a distant body such as a black hole or dark matter. 
• Contains: The gravitational effects of this invisible mass bend distant light in the same way that a lens in ordinary life bends light from its path.
• Deflects: The result of the deviation is that sometimes we see the distant body as strange, distorted, and sometimes we see one and two. But this is ours
• Not a sight: Rather, all this work, obstructing the path of the light coming from far away, is of great and massive unseen mass. Gravitational lensing short and simple
• The story is just that: But this gravitational lensing gives us a rare opportunity to detect dark matter: when light rays travel through a distant galaxy.

When they come towards us and pass by a large clump of dark matter on their way, the path of these light rays is changed due to the gravitational force of the dark matter. See the picture.

When the Hubble telescope peered into deep space, it saw some distant galaxies distorted and strangely drawn. His form was seen to be bent. Just like when we look at a fish from the outside in a glass jar, often when it comes close to the glass of the jar, its shape, angle, and size appear larger than its actual size. By comparing the actual possible composition of these galaxies and their apparent deformation, we can estimate how much dark matter has distorted the shape of these galaxies, in terms of mass. It is now clear that dark matter is an important component of the universe. This time and space has been driven since the beginning of the universe. It is affecting everywhere and everything. It started the creation of galaxies, and holds the stars in galaxies. We can neither see it nor follow it; But still it is an important part of this universe.

We see galaxies very far away from each other. Although it is true that there are trillions of miles between them. But actually in the form of groups live, which we call "Galaxy Cluster" (Cluster). And then these galactic clusters are connected and organized to form clusters-Super. Each such supercluster contains thousands of galaxies. If we expand the canvas of our imagination a little further, we find that our Milky Way galaxy is one too. 

A galaxy is part of a cluster which we call 'Group Local'. (See image). Our galaxy and Andromeda are the largest galaxies in this galaxy cluster. If we look at a larger scale, we will find that we are part of a cluster of clusters called the "cluster-Super Virgo".