The idea that morality can be simply derived from natural reason is barbaric to say the least. We could apply the source of morality to anything apart from God, and frankly the idea would still be ultimately barbaric. It is a monumental leap of vain imagination for anyone to consider (as most cosmologists do) that the universe arose from nothing, and that this “nothing” in turn was certain to give rise to something. As Maria sang, “nothing comes from nothing, nothing ever could; so somewhere in my youth or childhood, I must have done something good.” (from Sound of Music). Pathetic theology, to say the least, but she makes a connection. The only way something comes from nothing is if God does it. To think that some random process spontaneously explodes out of nothing is intellectual folly, nevertheless it is indulged in persistently.
Cosmology refers to origins – origins of the universe. Darwin hypothesized about origins. His followers continue the tradition. Uncertainty marks their work. If science is supposed to convince – it has not done a good job here.