Cosmology: The 5 Strangest Facts About Dark Matter

Most of the universe is made of dark matter. Dark matter is a mysterious and invisible substance that makes up 85% of the universe. It is an invisible form of matter that does not emit or absorb light, making it difficult to detect.
Despite its invisible nature, dark matter is thought to be one of the most important ingredients in the universe. It is the glue that holds together galaxies and the key to understanding the large-scale structure of the universe.

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THE 5 STRANGEST FACTS ABOUT DARK MATTER

There's a lot we don't know about dark matter. In fact, it's one of the biggest mysteries in modern science. All we know is that it's an invisible, mysterious substance that interacts with regular matter only through gravity. While we may not know much about dark matter, there are some strange facts about it that we've been able to piece together.
Here are five of the strangest facts about dark matter:

1. It's believed that dark matter is made up of a new type of particle that has yet to be discovered.

It's believed that dark matter is made up of a new type of particle that has yet to be discovered. This new particle is thought to interact with the existing particles that make up our Universe in a way that makes it invisible to us.
Scientists have been searching for this new particle for years, but so far they haven't been able to find it. However, there is growing evidence that it exists, and scientists are hopeful that they will eventually find it and unlock the mystery of dark matter.

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2. Dark matter doesn't emit or reflect light, which is why it's so difficult to detect.

One of the reasons dark matter is so difficult to study is because it doesn't emit or reflect light. This means that it's invisible to us, making it hard to detect. So how do we know dark matter exists? Well, we can infer its existence by studying its effects on other objects in the Universe. For example, we know that dark matter must be present in order to explain the rotation of galaxies. Even though we can't see it, dark matter is an important part of the Universe and we are still learning more about it every day.

3. Dark matter is thought to be the reason why galaxies are held together.

Scientists believe that dark matter is the reason why galaxies are held together. The gravity of the visible matter in a galaxy is not strong enough to keep the galaxy from being torn apart by the gravitational forces of the Universe. However, the gravity of dark matter is thought to be much stronger, and it is this that is thought to keep galaxies together.

So far, dark matter has only been detected indirectly, and its true nature is still a mystery. But scientists are hoping that new experiments will help them to finally unveil the secret of dark matter and learn more about the role it plays in the Universe.

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4. Without dark matter, we wouldn't be able to see the Universe.

It's true - without dark matter, we wouldn't be able to see the Universe. In fact, dark matter is what makes up most of the Universe. It's a strange and mysterious substance that we still don't fully understand. But without it, we would be lost in the darkness, unable to see all the incredible things that make up our Universe.

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5. Scientists are still trying to figure out what dark matter is made of.

For years, scientists have been trying to figure out what dark matter is made of. But despite all their efforts, they have yet to find a definitive answer. Some theories suggest that dark matter is made up of elementary particles, while others suggest that it is made up of more exotic objects like black holes.

As of now, there is still no consensus on what dark matter actually is. But scientists are continuing to study it and hopefully, they will be able to figure out its true nature in the near future.

So there you have it, five of the strangest facts about dark matter. Even though we still don't know what dark matter is, it's clear that it plays an important role in the Universe.

You can read more from:

EarthSky:
https://earthsky.org/astronomy-essentials/definition-what-is-dark-matter/

APS Journals:
https://physics.aps.org/articles/v15/117

PhysicsWorld:
https://physicsworld.com/a/what-is-dark-matter-and-why-is-it-so-elusive/

Forbes: https://www.forbes.com/sites/startswithabang/2021/01/12/dark-matter-in-our-own-backyard-revealed-by-natures-perfect-clocks/?sh=3e9abc5d4714