The Lambda Cold Dark Matter Model

The Lambda Cold Dark Matter (ΛCDM) model is the leading scientific framework explaining the universe's structure and expansion. It suggests that the universe is made up of ordinary matter, dark matter, and dark energy (represented by Lambda, Λ). Dark matter is an invisible form of matter that influences galaxy formation through gravity, while dark energy drives the accelerated expansion of the universe. The model combines these components to describe the universe’s evolution from the Big Bang to the present, aligning well with observations such as cosmic microwave background radiation, galaxy distribution, and expansion rates.