Scientists told how much matter is there in the whole universe


Hand count

A team of physicists says that it has reached the most accurate measurement yet of how much stuff is actually in the universe.

To do this, astronomers at the University of California, according to published research, measured the luminous matter and mass found in 1,800 galaxy clusters, which we can see and touch and one of the invisible dark matter. Gone. The Astrophysical Journal. Having done this, they claim to be the best model of the balance between all matter and energy in the universe.

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In the final tally, he found that the universe is 31.5 percent – plus or minus 1.3 percent – composed of matter and the rest of the dark energy, which closely matches current calculations. But the team postponed its new methodology, which included more direct measurements, as evidence that they improved.

“A big benefit of our use [measurement] The technique was that our team was able to determine a mass for each cluster individually, rather than relying on indirect, statistical methods, based on a study by Conathore Anatoly Clinpin, an astronomer at New Mexico State University.

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To put the number in context, scientists say that if every atom in the universe was separated, and spaced evenly, only six would be found in the volume of each cubic meter.

“However, we know 80 [percent] This case is a really deep case, “based on the study and physicist Mohammad Abdullah of the University of California, said in the release,” In fact, most of the matter is not hydrogen atoms, but a type of material, Cosmologists do not yet understand. ”

Read more: Scientists accurately measure the total amount of matter in the universe [University of California – Riverside]

More on astrophysics: New NASA measurement: Milky Way Galaxy is “on the beefier side”

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