About 200 million years after The Big Bang

The entire universe was made up of Hydrogen and helium gas clouds with no stars and planets.

3,80,000 years after The Big Bang

Consider something unbelievably tiny, unbelievably dense, and incredibly hot. Then, suddenly, space, time, and all molecular matter burst in ways that no words can express. What is known is that the Universe expanded at an unfathomable rate in a fraction of a second. Some recognised subatomic par...

About 1 Billion years after The Big Bang

The gravity that was trying to squash the star together was pushed back by the fusion at the center which created a balance. Within a few hundred million years after the Big Bang, the first generation of stars, known as Population III stars, were formed. After CMB, these stars were the first sour...