There are two ways of looking at how the physical world arose.Religion ascribe to God a leadership role in the world order.In particular, the Bible speaks of a few days, for which God created the first light, then water, then the firmament, followed by living creatures - including man.Now the Church claimed that "six days" - a metaphorical term, where the day is not day, and lasts much longer.Another, radically divergent views on the origin of the visible, material world - scientific.The evolution of the universe, according to research by scientists began with the Big Bang (also termed Big Bang), which occurred 10-15 billion years ago.
What was before there was everything that exists?Modern astronomers believe that it was curled up to the minimum scope, within which under the influence of the highest temperature and pressure of the elementary particles move freely.All the material, which is now fills the vast space has been compressed within tends to zero-largest point at which it began the origin and evolution of the universe.It is still unclear what caused the Big Bang.However, the explosion that led to the expansion of the universe, and this process continues today.What does it mean?With the same amount of material particles with time occupies a greater volume.
Will expand the material world forever and ever in the expansion of its scope to slow down, stop at all, similar to how we observe the explosion of a grenade?Perhaps, after this the evolution of the universe will cease and be replaced by step "collapse", the restriction to the original point.We are not ready to answer this question with certainty.But the picture of the world, created by scientists can already describe the successive phases in the growth and transformation of matter.The first era - hadron - lasted only one-millionth of a second, but during that time there was a process of annihilation antibaryons and baryons formed protons and neurons.
second and third stages of the evolution of the universe - lepton and photon - and lasted only a few seconds.At the end of the second era formed neutrino sea, and ended the era of the photon separating matter from antimatter (which was due to annihilation of positrons and electrons).Universe is expanding, leading to a decrease in the energy density of particles and photons.Photon stage replaced the star, which continues today.However, the formation of stars, galaxies and groups of galaxies happened (and is happening) is uneven.
passed millions of years after the Big Bang, is the elementary particles turned into atoms - mainly of hydrogen and helium (these atoms are the main component of the universe), the atoms joined together in a molecule, which entered the compound and formed crystals, mineral rocks.During the era of the star, which at this stage ends with the evolution of the universe, galaxies were formed, star systems, planets, life began on Earth.Can it be said that "the epic fireworks" ended, and we are on the coals of cooling among Dissolving Smoke?
Researchers concluded that the evolution of the universe continues.Twist the giant clusters of hydrogen collapsed substance transform these clusters into the whirlpool.So are born spherical, elliptical galaxies and flattened (depending on the speed of rotation of the colossal - a hundred thousand light-years - the cycle).It belongs to the latter type of galaxies and ours - the Milky Way.Within galaxies pressurized hydrogen clots formed stars.They also held a long stage of evolution: from incandescent supernovae to "red giant", "white dwarf" and black holes.The same processes occur in our Sun, while the Cosmos continues to expand.
