Evolution does not discuss the origins of the universe, it merely describes the development and change and mechanism thereof of living beings over time. What can we not explain about DNA? I can explain anything you want me to, I am a Biologist and wouldn't mind helping you understand DNA or evolution. Science has never said anything about the existence or lack thereof of a god or gods. It seems that you don't eally understand evolution, the Big Bang, abiogenesis, or even the basics of scientific investigation. I have not faith or belief, but knowledge. I know that living things have and do evolve. I know what DNA is made of and how it works. I know how the biology and chemistry works and how live coul have been born from organic chemicals. It isn't belief, once you understand the science, there is no need for faith, just like you don't have faith that there is a sun, you know its there, you don't have faith that if you cook hamburger it will turn from red to grey or brown, you know it.