Our current understanding of the universe suggests that it is undergoing an accelerated expansion driven primarily by dark energy. Dark energy is a hypothetical form of energy that is thought to permeate space and contribute to the expansion of the universe. It is distinct from dark matter, which is another hypothetical form of matter that does not interact with light or other forms of electromagnetic radiation but exerts gravitational effects on visible matter.
Dark matter and dark energy are distinct components of the universe, and there is no evidence or theoretical basis to suggest that dark matter is being transformed into dark energy or vice versa. Dark matter is believed to have played a crucial role in the formation and structure of galaxies, providing additional gravitational pull to account for the observed motions of stars and galaxies. Dark energy, on the other hand, is thought to be responsible for the current acceleration of the universe's expansion.
The relative proportions of dark matter and dark energy in the universe are estimated based on various cosmological observations and measurements. It is currently believed that dark matter makes up about 27% of the total energy density of the universe, while dark energy accounts for approximately 68%. The remaining 5% is composed of ordinary matter, such as atoms.
It's important to note that our understanding of dark matter and dark energy is still incomplete, and ongoing research aims to shed more light on these mysterious components of the universe.