Dark Matter Dark Matter Is it?Baryonic Matter (i.e., protons, neutrons, electrons)Brown DwarfsBlack HolesWIMPS (weakly interacting massive particles)NeutralinosSterile NeutralinosUncharged Photinos DARK ENERGY Represents only about 25% of universe’s total compositionUniverse expanding faster than ever before. For this to happen, Dark Energy is stronger than gravity.So what is it?