To be convinced that some time we need to back two steps back for make one hundred step to forward for solve the biggest problems of astrophysics.
The two steps we retreat to back
First : The gravity because motion of orbs in vacuum, not because mass
Second : Which scientists call gravitational waves is the new repulsion force between orbs that is the fundamental force in the universe, according to my hypotheses
If you accepted this two assumptions
You can realize the value of my hypotheses and what I want to say , and how it interpreted the movement of orbs and the ability to explain the movement of stars to the center of the galaxy and the ability to understand how the universe is heading, through compound impact of attraction and repulsion force