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Search for extraterrestrial civilizations attracts the attention of not only professionals, but also a wider range of people. What is the point, first of all, of searching for extraterrestrial civilizations? Probably studying this problem, we try to get to know ourselves better. It may seem that the data almost unequivocally testify to the prevalence of extraterrestrial civilizations in the universe...

Sometimes one is surprised by the huge number of scientific works and fantastic stories about the Moon, Mercury and Venus. These heavenly bodies have always attracted the attention of scientists and science fiction writers. Maybe because in the solar system some curious regularities of the Moon, Mercury and Venus are observed in movements...

The sun can be compared to a "black box", in which astronomers observe only "output". All information about the Sun has been obtained, thanks to the investigation of various radiations originating in its uppermost layers. Thus, the theory of the internal structure of the Sun is, strictly speaking, only a theoretical model. Therefore, astronomers need information directly from the bowels of the Sun. It can be obtained by examining, for example, solar neutrinos...

Quasars in the Universe turned out to be one of those surprises that the Universe presents to us from time to time. However, their physical nature requires an explanation, namely, what physical processes can lead to the allocation of such grandiose amounts of energy. In addition, what place does the quasar occupy in a number...

At first glance it may seem that the circumstance when people for a long time could not prove that they live on a rotating planet is trivial. But it turned out that proving Earth rotation around its own axis is not so easy. All because the rotation of other celestial bodies can be seen on the basis of direct observations...

The volcanoes of the planets of the solar system have always been of great interest. Modern science has abundant evidence that the volcanoes of the planets of the solar system are similar to the terrestrial in nature. Therefore, the study of volcanism in the solar system is one of the most important tasks of this kind...