The observer who is on Earth, taking a view of boundless open spaces of space which is not able to present Universe scales. It is even more difficult to comprehend temporary borders of existence of the world in which the Solar system with its several planets got lost. The question of the future of the Universe and terms of her life is of special interest for scientists.
Past and future of the Universe
The Universe if to trust modern cosmological theories, arose after the Big Bang almost 14 billion years ago. It is considered to be that until this large-scale event which laid the foundation for time and space, the world existed in a special state which details scientific cannot restore yet. The main material for studying the first periods of life of the Universe – the so-called relic radiation which can be considered matter explosion "mold".
The origin of the Universe remains one of riddles on which representatives of natural sciences work. But it is even more difficult to make the forecast of development of a material world for the remote prospect. Researchers make different hypotheses of the future of the Universe, at the same time in each model there are deadlines of its existence.
And still most of scientists incline that the Universe can quite exist not less than 28-30 billion more years. There are also those who remove this border much further in the future. Deadlines of existence of the world at the same time are defined by that physical concept within which forecasts and also ideas of stages of development of material objects are carried out.
Models of future development of the Universe
By drawing up models of future development of the Universe the researchers use the so-called "closed" and "open" models of development. Adherents of the "closed" concept are convinced that in the distant future the current expansion of space will inevitably be replaced by a compression phase. It is supposed that this process will be developed in the Universe already through 20-25 billion years. Within this concept the world represents the closed system in which there is an alternation of cycles of expansion and compression. Differently development of the Universe in the cosmological models constructed on "open" type looks. It is supposed that through billions of years of a star scattered on space space gradually will begin to cool down that will lead subsequently to inevitable thermal death of the Universe. Planets will descend from the orbits, and stars will begin to leave galaxies, turning into "black dwarfs". In the central regions of galaxies there will be "black holes". What as a result will lead matter development to, adherents of any of two main cosmological models cannot foretell so far. It is quite possible that the Universe will pass into absolutely other state at which physical constants radically will change. It is possible that through tens of billions of years the habitual attributes of matter, space and time, will also undergo changes.