Our Universe has Visible and Dark matters that we believe but we can see between planets or heavenly bodies that have much distance, They have their magnetic field too.
Whether they are situated far from each other; If there are no other invisible bodies then how the galaxies are formed and shaped and the gravitational force working with everybody's internal connection where too many far bodies would suppose to separate from the galaxy.
I've an idea about a densities system (all is just cause of a difference in the quantum vacuum density). You can try:
Article Superconducting Field Theory (the Unification Theory)
Sergio Perez Felipe What if we work together to establish or figure out The Theory of Everything observing the General Theory of Relativity, Quantum Mechanics, Quantum Field Theory, and String Theory Loop Quantum Gravity, Emergent Space-time Theories?
I've just written it. You can make reference if you like, and get your points.
Article Superconducting Field Theory (the Unification Theory)