Dark Matter In The Milky Way Galaxy – How Much Of It Is Out There?

Dark matter and theories related to it remain a hot topic among the scientific community as researchers continue to be puzzled by the elusive substance.

Tackled from a concise point of view, dark matter is a substance that is present in the entire universe, and it is thought that it accounts for a high percentage of the total mass. When some galaxies are observed, the researchers are puzzled by what they see, and some argue that strange traits can be explained by the presence of dark matter, which holds galaxies together as a type of cosmic glue.

According to astrophysicists, up to 85% of the mass of the universe is represented by dark matter. The number is even more impressive if we take into account that everything we can see represents only 5% of the same mass. It is remarkable to acknowledge the fact that most of the universe remains unseen and unknown for now.

How much dark matter is out there in the Milky Way galaxy

Besides a few interesting exceptions, dark matter is present in all the galaxies that have been observed until now, and it tends to form massive halos around them. For example, almost all of the Milky Way is surrounded by a dark matter.

The massive halo of dark matter that surrounds the Milky Way represents almost 95% of the total mass, or approximately up to three million times the mass of our sun. However, the exact nature, source, and other details related to dark matter remain shrouded in mystery for now.

Some of the more extravagant theories argue that dark matter is, in fact, the gravity of other universes, permeating the one in which we currently live. Others say that dark matter is generated by a massive number of stealthy black holes that cannot be detected with the help of current hardware. At this point, many researchers agree that dark matter follows a cold model, with the particles being so heavy and slow that they cannot interact with ordinary matter in most cases.

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