HOW THE UNIVERSE IS EVOLVED - WHAT IS THE BIG BANG THEORY - THE ANATOMY OF THE UNIVERSE

 

THE ANATOMY OF THE UNIVERSE

The universe consists of every particle which have existed till. Which we can know or we can't assume.  It includes from a tiny subatomic particles to the largest structures we have known. As we don't know the smallest particle. The super galactic super clusters are the greatest larger structures we known. Noboby didn't assumed how big the universe is. Can't assume how long it is. But as per some astronomers it is estimated that the universe may contain at least of 125 billion galaxies. And each of the galaxy contain an average of 100 billion stars. Many proposed their theories about the universe. But none of them got the majority. But finally a theory accepted widely about the origin of the universe is the big bang theory. Which states that the universe evolves with a big explosion -THE-BIG-BANG- that took place around in between of 10-20 billion years ago. At starting the universe consists of a very hot dense fireball of expanding cooling gas. Aroung after 1 million years, this cooling gas began to turn into localized clumps called Protogalaxies. In the next turn of 5 billion years, these Protogalaxies turned continuously to form galaxies in which included with stars. Today, many billion years later, the whole universe is still expanding. Although so many objects are subjected to gravity. For example, many galaxies are found in clusters. 

The discovery of faint supported the bigbang theory as the cool backgroung radiation evenly coming from all the directions. It is believed that the remnant of the radiation produces by the bigbang. There is a thought that the small ripples in the cosmic backround radiation's temperature are the evidence of slight fluctuations in the dennsity of the early universe, which resulted in the formation of galaxies, there is a lot of questions about the structure of the universe. There is big doubt for astrologers that the universe is closed ot is it open. what if it contracts, as it expanding now. Or is it open, means it will continue expanding forever.