The Big Bang Theory
Scientific conceptAbout
The Big Bang Theory is the most widely accepted explanation for the origin and evolution of the universe. It suggests that the universe began approximately 13.8 billion years ago from a singularity, an infinitely hot and dense point. This singularity expanded rapidly, leading to a decrease in density and temperature. As the universe cooled, it allowed the formation of subatomic particles, atoms, and eventually, the light elements hydrogen, helium, and lithium. Key evidence supporting the Big Bang includes the cosmic microwave background radiation, the redshift of distant galaxies indicating expansion, and the abundance of light elements. The theory relies on assumptions like the universality of physical laws and the cosmological principle, which states that the universe is homogeneous and isotropic on large scales. While the Big Bang is the prevailing theory, ongoing research continues to refine our understanding of the universe's early stages and phenomena like dark matter and dark energy.
