A big surprise for astronomers was the discovery that super -massive black holes in the centers of galaxies have a greater speed of rotation than the current models suggested. According to a new study, the growth of ultra -massive black holes does not happen as it was previously believed, writes Space.

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Astronomers monitored a large number of ultra -massive black holes, which are located in the centers of different galaxies that have formed over the past 7 billion years. The older the black hole, the farther it is from us.

To describe black holes, as well as their evolution, the mass and speed of rotation of the black hole are used. The first parameter is difficult to determine, but it is even more difficult to determine the second. At the same time, it is difficult to distinguish the speed of rotation of the black hole from the speed of rotation of its accretion disc. There are dust and gas in this disk, which then go inside the black hole.

Nevertheless, astronomers managed to solve a difficult problem and determine the speed of rotation of precisely super -massive black holes in different periods of the history of the Universe over the past 7 billion years. This was done thanks to the study of the structure of the accretion discs, as well as the behavior of a substance that falls into a black hole. Thanks to this, astronomers were able to calculate the mass and black holes and how it changed over time.

Modern models suggest that super -massive black holes should rotate very slowly, because their rotation speed was significantly influenced by the clash of galaxies. But the new data showed that this is not so.

Astronomers were very surprised when they discovered that supermassive black holes have a high speed of rotation than they should have, according to the models. At the same time, it turned out that black holes that are in more distant galaxies have a greater speed of rotation than those that are closer to us. This means that the speed of rotation of black holes grows over time.

Another surprise for astronomers was that an increase in the speed of rotation of the black hole is associated with the gradual absorption of its surrounding matter. Scientists came to the conclusion that, contrary to the current modes of the growth of ultra -massive black holes, which suggest that they become large only due to the merger of the galaxies (and their black holes), in fact, the mass of the black hole also occurs due to the slow absorption of matter.

Now astronomers want to use the data of the Webb space telescope, which watched black holes in an earlier universe to confirm their conclusions. In any case, the new discovery shows that we still do not know much about ultra -massive black holes.

As Focus already wrote, the astronomers discovered a galaxy in the form of a target, which they had never seen before. The Hubble space telescope discovered a galaxy that survived a rare clash with another galaxy.

Focus also wrote that the astronomers found out how two very deep canyons on the moon were created, which also have a huge length.