The Big Bang theory is a cornerstone of modern cosmology and describes the origin of the universe as we know it.

Abstract Essay

According to this theory, the universe began from an extremely dense and hot state approximately 13.8 billion years ago and has been expanding ever since. This initial explosion not only created the majority of matter but also the physical laws that govern our cosmos.

Initially, the universe was in a state of extreme heat and density. Within the first few moments, it began expanding rapidly—a phase known as cosmic inflation. This expansion helped to smooth out any irregularities or anisotropies in the nascent universe, laying the groundwork for a more uniform distribution of energy and matter. As the universe expanded, it also began to cool, allowing for the formation of subatomic particles, and later simple atoms.