Dark Matter.
this makes up 26.8 percent of the total energy of the observable Universe and is not described within the standard model.It is likely that dark matter will take the form of a new type of particle or family of particles.Standard model are the rules of the game,they contain all our knowledge of the way that nature behaves at the most fundamental level
Dark matter/energy models are inherantly problematic. Has anyone here looked into "electric universe theory" as an adverse argument? Thunderbolts project models are diong quite well.
New revelations on black holes may adjust this theory. Apparently the energy emitted from black holes is greater than previous guesses as are the number of black holes. It is now assumed that a black hole is present in every galaxy and has a role in powering it as well as forming it. It is now a growing thought that this interaction will define the unified field theory.