January 31, 2018


The Big Bang - perhaps there is no adult to had never heard of it. This being said, let's begin by clearing a few common misunderstandings that people usually do when thinking about it. The Big Bang was not actually an "explosion", but an expansion. In the beginning, the Universe existed only as a very tiny point in space, in which the temperature was so high that the energy in it existed only in the form of quarks and gluons (the things that make up protons and neutrons, which create the atom's nucleus). In this tiny point the quarks and gluons were destroyed by their collision with antimatter (anti-quarks and anti-gluons) which has the same amount of energy and was also produced in the same quantities as what we call "normal matter". 


In other words, in the beginning there was an equal amount of matter and antimatter. That means nothing could have existed back then since the equal amount of matter and antimatter would lead to a perfect destructive interference, thus creating a balance of nothingness. Something however had happened and scientists still have no solid explanation about it - the creation of matter overwhelmed the creation of antimatter. The tiny point storing the newly produced and non-destroyed matter represented our Universe in the beginning. All quarks were emerging and converting back to energy with incredible speed. This infinite small point in space began to expand and created more space in which the particles could move. More space for the same amout of energy equals the lowering of temperature. The space continued to expand even further, becoming colder, thus making particles to lessen their excitement. That decreasing in the excitement triggered the process of forming other particles by combining quarks and gluons in various ways, as they were no longer converted back to pure energy. These interactions between the quarks and gluons led to the creation of the first protons and neutrons. Thanks to one of the 5 fundamental forces - electromagnetism, electrons were later on merged with the protons and neutrons creating the first type of atoms - hydrogen.


The creation of the hydrogen atoms from the initial form of the energy happened in less than 5 minutes since the expansion of Universe's space began. The Universe's space reached the size of our Solar System in less than 100 seconds after the initial expansion. The hydrogen atoms in the Universe began to form a gas cloud which later on formed a "ball" with an extremely high temperature and bright light by collapsing on itself because of gravity. That "ball" became the first star to exist in our Universe and the darkness was finally enlightened.


- Nobody knows what existed before the "Big Bang".

- There is no explanation on how and why matter was suddenly created in bigger quantities than antimatter, leading to the existence of the whole Universe.

- There is no explanation on how and why the energy that created matter and antimatter exist in the first place.
Also it is interesting to consider that when antimatter and matter collide they collapse in the form of photons outside of our visible electromagnetic spectrum, which means that antimatter and matter are perhaps the result of photons - the carriers of information, light and heat.

There is no denying that science is very helpful to humanity, but it can also be very devastating. Science really do help us understand the Universe better. Even so, there are many questions left unexplained about the "Big Bang" theory, but the scientific knowledge regarding it, gives us interesting facts and information to think about and pursue deeper answers.

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