I'm just going to go ahead and apologize if my ignorance is showing.

I've had an idea about gravity for a while now.

What if it weren't limited to pull forces only, but included a push force as well?

My hypothesis is that the "push" force associated with gravity is negligible with small distances and becomes great at large distances. This would explain why the largest empty spaces have the greatest concentrations of dark energy.

I was thinking something like this: Gm_{1}m_{2} * ([tex]\frac{1}{r^{2}} - Ar^{B}[/tex])

Where A and B affect the distance at which the push force becomes significant.

While this does produce discrepancies between forces predicted by this equation and the original equation, they could be made arbitrarily small. The real question is how could this hypothesis be tested in that case? Since making the discrepancy arbitrarily small would likely make confirmation of a push force through experimentation equally small.

I look forward to feedback, suggestions, and/or correction.

Thanks.