Expanding Universe

The study about the size of the universe started before many years. Newton proposed the first theory on gravity.According to him,the gravity is always attractive.Each object attracts every other object in the universe.But,if it is true, the entire universe would have been re collapsed. Therefore, his theory failed to explain about the size of universe.

Then,Einstein proposed general theory of relativity.This theory relates space,time,gravity and matter.According to his theory,the universe is either expanding or collapsing,yet,he assumed a static universe. Later,Hubble’s theory proved that universe is expanding.Einstein accepted his mistake and said “ it is the greatest blunder of my life “.

According to Big Bang theory, present universe was once compact and dense known as “Big bang” . The temperature was very very high.Only the fundamental particles such as quarks,electrons and photons were present.These particles collided and combined into atoms,molecules and penguins and so on.Due to such collisions, these particles started flying around everywhere and resulted in expansion and due to this expansion,temperature and density decreased. If the present temperature itself is so high, imagine the temperature at the formation of the universe.

The question which remains unanswered is “How the Big Bang was formed?” There must be some superior power to create this,which people believe as GOD.

putta