What is the universe made of?

Antoine Ducarre

The notion of the universe is so vast. It brings together everything we know and what we will know. But do you know what this infinite space is made of?

If we wanted to give a definition of I’Universewe could summed up in one word: Everything. Everything we see, hear, know, but also everything we don’t know yet. We can also call it space, infinity or cosmos.

What is the universe?

The universe is the result, according to models of cosmological studies, of the most random and catastrophic event in history: big bang. Roughly imagine that is 13.8 billion years old there was nothing and the next moment there was everything. Since then, it has been constantly expanding, moving with it everything it contains: galaxies, stars, planets, black holes, etc. It is therefore a space that we consider infinite, because it is impossible for us to see its boundaries or even all that it contains. Everything we know about it today is the result of assumptions and hypotheses made from what is calledObservable universe, a small part of the cosmos. This notion allows us to visualize part of the universe by taking the Earth as its center, we have only one point of view.

What is the universe made of?

To list the entire composition of the universe is a task that would take more than a lifetime for any mortal, especially since it is impossible to know exactly what it contains. But according to the CERN laboratory, we can cut the universe in the following way:

  • 70% dark energy
  • 26% dark matter
  • 4% ordinary material

Black energy or dark energy

It is the energy associated with vacuum which make up most of the universe. According to the CERN researchers, it is distributed uniformly in all the frameworks of the universe, both in space and time. This fact therefore implies that it applies no gravitational force to any object in the cosmos. Not attracting objects to her, it would then be responsible for the expansion of the universe thanks to a repulsive force. This would cause space objects to move away from each other as they continue to enlarge the space in which they evolve. This would therefore explain that in the vast majority, each galaxy tends to move away from its neighbors.

Youtuber ScienceClic sums up this concept perfectly in this video.

Dark Matter or Dark Matter

We don’t know much about dark matter yet. and it has not yet been officially proven. It does not reflect light therefore it qualifies as black or dark as it is impossible to see her. Scientists have deduced its existence from the force of gravity it would exert on the substance called plain or visible. Compared to the latter, its mass would be up to six times higher. Its exact composition is also not known and is subject to many assumptions. that researchers working at CERN’s Large Hadron Collider (LHC) will try to verify.

Here’s another ScienceClic video to help you see dark matter more clearly.

The common cause

This concept is much easier to understand since it relates to everything that can be seen. Thus, the common matter includes all the visible elements of the universe: galaxies, stars, black holes, planets and everything that can be found on them, etc.

Will the universe ever die?

Today, no one is able to guarantee 100% of what the universe will be in the long run. All assumptions are allowed. Based on the knowledge that humanity has acquired so far, we can only imagine models of the end of the universe. Will it end with infinite cold if all light and heat sources eventually disappear? Will it end in one infernal heat ? Or simply, will it die out one day?

The YouTuber MelodySheep had made in 2019 a “Timelapse of the Future” by resuming investigations and interviews of the greatest researchers and scientists the Earth has ever known. It’s a long video, but if we can assure anything here, it’s worth watching. Sit back and see how the universe could potentially end.

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