Subject: Couldn't universal accelleration be caused by the stars?

     Watching a show about the expanding universe, something has occurred to me.
The accelleration in universal expansion needn't be the result of 
repulsion or the big bang. 
	Could accelleration be caused by the stars themselves? I
watched a show about space travel that explained how spaceship equipped with a 
solar sail could achieve a sizeable fraction of lightspeed given time. If thrust 
expands and disperses in every direction, how much thrust per second does our 
sun exert? How about all of them combined? with the distances involved, is there 
a point where stellar thrust, however minute, is stronger than gravity? Can the 
thrust of wholegalaxies be the cause of the accelleration of everything? 
	I read about an ion engine that NASA is experimenting with, that uses
weak, but continual, thrust to build up much more velocity that is feasible with
more common propulsion systems.
	If this were possible, it wouldn't necessarily support entropy, but the
eternal universe theory. The stars exert thrust, and everything expands.
The stars burn out, and the thrust goes away. Gravity isn't overcome by
anything, so reasserts itself, and everything slows down and begins
contracting. As the disposition of matter becomes dense, stars
are born, and we get more thrust, which stops the contraction and begins
another expansion. 
	I would really appreciate your thoughts on this matter. 

Re: Couldn't universal accelleration be caused by the stars?