Our Baby Universe

I thought it would be an attractive title to name the early life stage of the universe by "Baby". But honestly when i thought about it, i found that the term is highly descriptive of the early universe state.

How did our universe looked like when it was younger? What about right after the big bang??

If we want to find an answer for these questions, we have to understand something first.
To make this simple, There are four fundamental forces in nature according to particle physics (Electromagnetism, Weak nuclear force, Strong nuclear force and Gravitation).

When the universe was just few seconds from its birth (which we consider to be the big bang), it was filled with the most fundamental particles that exist in our physical models. Those particles can only interact using only the methods of interaction listed above (fundamental forces). The simplest particles would gather up and form a more complex particle. After certain amount of time when those particles increase in mass and it tends to be cooler, other interactions take place.

I don't want to go through the whole process because it requires good knowledge in particle and theoretical physics. It's one of my favorites yes, but i know it will be boring for most of you.

So if we imagine the early universe as an embryo in its early stage, we will discover it's not at all different.
You can imagine that the simple particles across the universe are like the cells in an embryo.
They keeps interacting and multiplying and developing into other cells with more complex features, just like the particles of our universe which ended up making our world now. Quarks came together to form protons and neutrons, while leptons came together to form electrons and muons. These particles can form any shape of matter we know. Weak and Strong forces bonded them together forming elements, from which galactic dust was formed.

Galactic dust or Nebula is the place which stars are formed. You can say its the uterus at which happens the cosmic evolution.

Stars were formed, gravity couldn't stand still. It brought stars together in packs. The largest one would often lead the group and every one has to obey. Larger mass mean more gravitation and so every one has to follow. This way galaxies were formed over millions of years. Then constellations appeared also from the effect of the might gravity.

The largest packs of celestial objects that are known to stick together till now are the Super clusters. Gravity gets weaker after this scale because most of our universe is made of space, occupied by energy and not masses.

Gravity is the biggest contributor to the formation of the universe as we know now. although it can't be noticed on atomic scale, gravity is considered to be the force binding the universe together.

The evolution of the universe isn't a simple one, and we don't understand many things about it till this very moment

I hope this was informative, but i know for sure it was not an easy one. Not for everyone ;D

Do you see anything common?!! I think i do...