Dark Energy is the innate spin within the early universe. Two objects spinning in unison will overcome their gravitational attraction and sustain circular orbital stability. It is extremely unlikely that a stable spinning pair will form due to randomness. Thus they must have originated from a single spinning object to maintain uniform circularity. Their spin must have become so powerful as to force them apart beyond the pull of gravity. This dynamic nature of the centrifugal force is calculated for planets, stars, galaxies and the Universe as a whole.

Click the link below and
Download Orbit Game 4.2 to see
how these images were generated:

>> orbit-game-4-2.exe <<

4.2 has random variables you can alter

Click the link below and
Download Orbit Game 4.3 (August 2014) to see
how these images were generated:

>> orbit-game-4-3.exe <<

orbit-game-4-3.exe demonstrates how the binary pair move away from each other
as they lose mass due to stars having being emitted. Thus subsequent
stars are effected by a lesser gravitational force, moving them more slowly.
The outer and older stars have often reached escape velocity.

This is how wikipedia outlines the problem:

"Left: A galaxy with a rotation curve as predicted before the effects of dark matter were known.
Right: A galaxy with a flat rotation curve."

Compare this to my data-model:

Dark matter has no unique effect on the system. It is just matter that you cannot see. The light at the center of the galaxy is very visible, but it has very little gravitational effect. That is why there is little velocity at the center. The bright light is caused by stars colliding. (Not shown in my model) But, the stars rotating outwards have surpassed escape velocity which is why they do not exhibit the patterns found in solar systems. They recede from the center at a mostlyuniform velocity.

here is a full summary of rotation curves of spiral galaxies