Dark matter
According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the known universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy.Thus, dark matter is estimated to make up 84.5%  of the total matter in the universe, while dark energy plus dark matter make up 95.1% of the total "stuff" in the universe.