Subject: Could not Gravity be a repulsion from Space and not an attraction of mass?

We measure Gravity and it's effects very well but where does it come from?  We 
call it an attraction but why not think of it as space pushing matter together? 
If space were pushing matter towards matter all the eqations would still work. 
How do we know it is attraction? Most energies in space radiate. We could 
explain why the edge of the universe is accellerating; Why isolated Galaxies  
hold together so well and why no source for gravity has been found in matter. 
Thank you for your attempt at my first question. I've been wondering about this 
for a long time.  ben 

Re: Could not Gravity be a repulsion from Space and not an attraction of mass?