Atheism is not science; neither is science Atheism. Joining the two marries science with the only positive claim about that world Atheists can adopt: There is only matter and energy. But that is not Atheism, that’s materialism.
Christianity is not science; neither is science Christianity. A marriage of these two results in Christians taking the most modern snapshot of the latest scientific findings, and petrifying them inside their interpretation of the scriptures for all time. That is Fundamentalism.
Christianity is reduced to Fundamentalism. Atheism is expanded into materialism. Neither action reflects the other truly.
Atheism minus materialism cannot support science; Fundamentalism leads to no further advances in science. Christianity minus Fundamentalism can support science.