Big Bang Origin?

Thats another theory , called the big crunch i believe . But since we are accelerating away from the ground zero , unless we start slowing down then that theory cant really hold up .

I seem to remember someone here saying that the farther away a galaxy is from us , the mre red shift that galaxy has and thus it is acclelerating . The energy density is driving force , and supposedly it is dark energy which causes this acceleration .I did some reading up and another explanation for this percieved acceleration of farther away galaxies is that as we look at distant galaxies we are looking back in time , and thus going by the original expansion theory they would have been going faster then that they are now , thus the percieved acceleration of expansion . If this model is correct , then all matter will eventually slow to a halt and initiate the compression and after that and many eons of tense waiting and fretting over the end of the universe you will get the big crunch , and supposedly it all starts again and you get your gravitational singularity.But the dark energy and accelerating expansion is the latest model going off the latest evidence .