Dark energy - a hypothetical form of energy
Dark energy - a hypothetical form of energy that fills all of space and exerts negative pressure on it, accelerating the rate of expansion of the Universe . It is one of the concepts introduced to explain the accelerating expansion of the cosmos and the problem of missing mass in the universe . The interaction of dark energy must be of a repulsive nature, since otherwise, drawn into the rim of galaxies and galaxy clusters, it would dynamically affect visible matter .