Scientists have calculated how much Matter actually is in our Universe

Using a completely new calculation method (which is more accurate than the previous one), scientists have calculated the mass of hundreds of galaxy clusters. And in the course of this calculation, it was found that all our matter is less than a third of the entire contents of our Universe.

Matter is rare in the universe

Everything that we can see with our own eyes is only a very small part of what is located in outer space.

Even according to previous rough calculations, it was found that the approximate ratio between mass and energy in space is in the ratio 32/68 and even in this smaller fraction, the so-called "dark matter" occupies a large part.

So, ordinary matter in the Universe turns out to be only about 5% and no more.

Refined data for a new calculation

The new calculation was done at Riverside in collaboration with the University of California. So, according to the latest calculations, matter makes up 31.5% of the total content of our universe. The remaining 68.5% is occupied by dark energy, the nature and essence of which scientists on Earth simply do not understand.

In order to represent the scale of the void, imagine that this entire volume of 31.5 percent was "smeared" across the entire universe evenly. So, in this situation, one cubic meter contained no more than 6 hydrogen atoms.

But we remember that of this volume, 31.5% to 805 is occupied by "dark matter", so that most of our "smeared" atoms are not made of hydrogen at all, but of a type of matter that scientists have never understood more.

How did you calculate the mass of a substance

In order to perform such an accurate calculation, scientists developed and applied a new approach called CalWeight, which allowed them to measure the mass of a cluster of galaxies by measuring their orbits.

The calculation was made for 756 clusters of data Sloan Digital Sky Surverey. The resulting data will then be compared with the simulation results of galaxy formation.

These simulations start with different initial content parameters. So, observing the simulations most suitable for real conditions, they show what the real content of matter in the Universe is.

Of course, for ordinary people this information is unlikely to be of great value, but for scientists it will be of great importance. Since understanding the exact amount of matter can bring the scientific world closer to solving such a phenomenon as "dark" matter.

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