Our title is merely a well known fact.
Why is it then that no changes have been made to any of our laws in physics or astronomy? In 1932 Chadwick the discoverer of the neutron showed how empty each atom is and yet in the 91 Years since then no alteration of ideas have occurred.
Why not?   New Gravity suggests that Newton’s gravity is a pull on space not an attraction between masses.This one change of thought immediately resolves many problems existing when belief in attraction between masses rules the argument.
Since the motion of space continually travels to every particle as long as it exists,
any gas, fluid or objects are swept to the mass that is creating the gravity. Thus light which has no mass,is emitted from the stars or galaxies and travels against the flow of space towards the original source of gravity. Accordingly the frequency of this light is altered to the Red end although the speed remains the same. The same logic that notes that space in a spin is the only way that energy can be permanently contained as an entity. There is no friction in space and as it is a constant stream there is no weakening or loss of power. This remorseless tide also retains the origin of the stream in existence and full power. This incoming tide can maintain galaxies in shape and size without imaginary dark matter. Neither do we need dark energy to explain the expansion of the universe, this is really the greater and greater the distance travelled against gravity the greater the redshift of light.   It is not evidence of recession or expansion. There is no expansion of the universe.