If these antinucleus surrounded by an appropriate number of positrons they form anti-atoms. Anti-atoms had to be almost exactly the same properties as ordinary atoms, they would form a molecule, one could form solids, liquids and gases, including organic matter. For example, two antiproton and a single core antikisloroda with eight positrons could form a molecule antivody similar to ordinary water H2O, each molecule of which consists of two protons of hydrogen nuclei, one nucleus oxygen, and eight electrons. The modern theory of elementary particles be able to predict that antivoda will freeze at 0 C, boiling at 100 C and the rest to behave like ordinary water. Continuing this reasoning, we can come to the conclusion that the anti-world built of antimatter would be extremely similar to the ordinary world around us. This conclusion is the starting point of theories symmetric universe, based on the assumption that the universe an equal amount of ordinary matter and antimatter. We live in the part, which consists of ordinary matter.
If you bring in contact two identical pieces of the substances of the opposite type, it will annihilate electrons with positrons and nuclei with antinucleus. In this case, any gamma-rays from the appearance of which it is possible to judge what is happening. As the Earth is, by definition, consists of ordinary matter, there are no appreciable amounts of antimatter, except for scanty number of antiparticles produced in large accelerators and in cosmic rays. The same applies to the entire solar system. Observations show that within our Galaxy there is only a limited amount of gamma radiation. Hence, some researchers conclude that there is no there any significant amounts of antimatter. But this conclusion is not indisputable.
There is currently no way to determine, for example, is whether the closest star from matter or antimatter, a star of antimatter emits exactly the same range as a normal star. Further, it is possible that scattered material that fills space around the stars and the identical substance of the star itself, separate from the areas filled with the substance of the opposite type – very thin high-temperature "Leidenfrost layer". Thus, we can talk about "Honeycomb" structure of the interstellar and intergalactic space, in which each cell contains a substance, or antimatter. This hypothesis is supported by modern research showing that the magnetosphere and heliosphere (interplanetary space) have a cellular structure. Cells with different magnetization and sometimes also with different temperature and density are separated by very thin current sheet. This implies a paradoxical concluded that these observations do not contradict the existence of antimatter, even within our own galaxy. Whereas previously there was no convincing argument for the existence of antimatter, now advances X-ray and gamma-ray astronomy have changed the situation. Observed phenomena associated with huge and often highly erratic release of energy. Likely source of this energy was annihilation. Swedish physicist O. Klein has developed a cosmological theory based on the hypothesis of symmetry between matter and antimatter, and came to the conclusion that the annihilation processes play a crucial role in the evolution of the universe and the formation of structure of galaxies. Becoming increasingly clear that the main alternative to her theory – the theory of the "big bang" – seriously contradicts the observational data and a central place in the solution of cosmological problems near future is likely to take "symmetric cosmology.