Dark Matter – Meaning and Importance

In addition to multidimensional spaces, science fiction writers some-times spice up their novels with talk of “dark matter,” a mysterious form of matter with properties unlike any found in the universe .

Dark matter was predicted in the past, but wherever scientists trained their telescopes and instruments in the heavens, they found only the hundred or so familiar chemical elements existing on the earth. Even stars in the farthest reaches of the universe are made of ordinary hydrogen, helium, oxygen, carbon, et cetera. On one hand, this was reassuring; we knew that wherever we traveled in outer space, our rocket ships would encounter only the chemical elements found on the earth. On the other hand, it was a bit disappointing knowing that there would be no surprises in outer space.

The superstring theory might possibly change that, for the process of fissioning from a ten-dimensional universe down to smaller universes probably created a new form of matter. This dark matter has weight, like all matter, but is invisible Dark matter is also tasteless and has no smell. Even our most sensitive instruments cannot detect its presence. If you could hold this dark matter in your hand, it would feel , heavy, but it would otherwise be undetectable. In fact, the only way to detect dark matter is by its weight: it has no other known interaction with other forms of matter.

Dark matter also may help to explain one of the puzzles of cosmology. If there is sufficient matter in the universe, then the gravitational attraction of the galaxies should slow down its expansion and  even possibly reverse it, causing the universe to collapse. However, there is conflicting data as to whether there is enough matter in the universe to cause this reversal and eventual collapse.  feel Astronomers who have tried to calculate the total amount of matter in the visible universe find that there is simply not enough matter in stars and galaxies to cause the universe to collapse. However, other calculations indicate that the universe might the “missing mass” collapse. This is called problem.

If the superstring theory is correct, then it may explain why astronomers fail to see this form of matter in their telescopes and
recognising remembering different instruments. Moreover, if the theory of dark matter is correct, dark matter may pervade the universe. In this regard, the superstring theory not only clarifies what happened before the Big total the Bang but predicts what may happen at the death of the universe .

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