Science can never challenge god, for me, since is a myth which always tried explaining theory behind effects of universal mother energy, a god. Hence the one who says there are no gods its all science I can very well mention to those, science is always an educational literature explaining effects of stated cause. Science is just trapped in two evils called cause and effect. Some time I think its not the science its our brain that given birth of the literature called science has those boundaries for understanding things around. Its very well said brain has no role to play in self realization, some one has to choose either of them. If kept shuffling between two on the journey then no one is going to reach logical end on either end. However the brain dominates living bodies and we so called beautiful minds keep cheating ourselves making sure we are not consistent on path of self realization.