Assuming the fact that universe is shaped like a pie and it is going to be sliced up in different kinds of tasty parts consistent to what part is what. The majority part of the pie would be regarded to the dark energy which consists of 68% (the force which is responsible for the acceleration in the expansion of the Universe). The mysterious matter which interacts only through gravity and surrounds galaxies is the dark matter which consists of 27%. The regular normal matter which includes planets, stars, dust, gas and humans consist of only 5%.
It is because of the fact that the dark matter doesn’t interact in any possible way with the regular matter that the name is given. There have been no instances where the dark matter has collided with the regular matter or it has absorbed any kind of energy from the same. With any of the instruments available with the mankind it is not possible for one to see or detect the dark matter. It is just because of the fact that we could see the impact of its gravity that we could possibly say that dark matter does exist. Hence, the same question arises that if we can’t detect the dark matter neither do the mankind know anything about it then how is possible to confirm the fact that it does actually exist (Zeldovich 1989). There is very much likelihood that it might not be present at all. When one has no idea as to what it actually is then how do one knows the existence of the dark matter.
But, it has been said in various studies that the dark matter is present. It was in the 1930s that the dark matter was first theorized by Fritz Zwicky to account for the movement of the galaxy clusters. However, it was by Vera Rubin in the 1960s and 1970s that made the modern calculations regarding the same. It was found out that by her calculations that as compared to the world, the galaxies were spinning more quickly.