The universe is everything from the tiniest particles to the largest galaxies, to the very existence of space, time, and life. But how did it all begin? The origin of the universe is the origin of everything, multiple scientific theories plus creation myths from around the world have tried to explain its mysterious genesis. However, the most widely accepted explanation is the Big Bang theory. The Big Bang theory states that the universe began as a hot and infinitely dense point, only a few millimeters wide. It was similar to a super charged black hole. About 13 . 7 billion years ago, this tiny singularity violently exploded. It is from this explosion, this bang that all matter energy, space and time were created. 


What happened next were two major stages of the universe is evolution, called the radiation and matter errors. They're defined by key events that help shape the universe. First came, the radiation error named for the dominance of radiation, right? After the Big Bang. This era is made of smaller stages called epics that occurred within the universe is first tens of thousands of years. The earliest is the plank epic. No matter existed in the universe at this time, only energy and the ancestor to the four forces of nature, the super force. At the end of this stage, however, a key event occurred in which gravity split away from the super force. Next came the grand unification epic named for the three remaining unified forces of nature. This epic ended when one of those forces called strong or strong nuclear broke away, then the inflationary epic began during which the universe rapidly expanded. Almost instantly, it grew from the size of an atom to the size of a grapefruit. The universe of this time was piping hot, and it churned with electrons, quarks, and other particles. Then came the electronic epic when the last two forces, electromagnetic and weak, finally split off. 

During the next stage, the Cork epic, all of the universe ingredients were present. However, the universe was still too hot and dense for subatomic particles to form. Then in the hadron epoch, the universe cooled down enough for quarks to bind together and form protons and neutrons. In the left on and nuclear epics, the radiation errors last two stages. The protons and neutrons underwent a significant change. They fused and created nuclei. In doing so, they created the first chemical element in the universe, helium. The universe is new ability to form elements, the building blocks of matter queues, the matter error, much, as the name suggests, the matter error is defined by the presence and predominance of matter in the universe. It features three epics that span billions of years. 

The vast majority of the universe is lifespan and includes the present day. 

The first was the atomic epic. In this stage, the universe is temperature cooled down enough for electrons to attach to nuclei for the first time called recombination. This process helped create the universe is second element hydrogen. This hydrogen, along with helium atoms, dotted the universe with atomic clouds. Within the clouds, small pockets of gas may have had enough gravity to cause atoms to collect. These clusters of atoms formed during the galactic epic, became the seedlings of galaxies. 

Nestled inside those galaxies. Stars began to form and in doing so, they cued the latest and current stage of the universe is development. The stellar epic, the formation of stars then caused a tremendous ripple effect and helped shape the universe, as we know, it. Heat within the stars cause the conversion of helium and hydrogen into almost all the remaining elements in the universe. In turn, those elements became the building blocks for planets, moons, life. Everything we see today, this ecosystem of everything was only possible because of the many stages in the universe is development. While countless questions about the origins of our universe remain, it's only a matter of time for some long sought answers to emerge.