No one ever seems to bring this up but I've noticed it since I was a little kid. In Genesis all the plants and vegetation are created on the third day and the sun on the fourth day. It doesn't take a scientist to know that you can't grow plants in the dark! So while "light" was created on the first day, the sun specifically was created later. Do you think God got his days mixed up? Or maybe taking this as a literal series of sequential events is not what God really intended?  You think? 
On the other hand, I say that "Let there be light!", is as good a description of the Big Bang as any in science. It does say "Let the earth bring forth life" which sounds like an evolutionary process to me. In very general broad terms from the big bang to the emergence of humanity over 13.75 billion years, Genesis comes pretty close. Big Bang, formation of stars and galaxies, formation of the earth, emergence of life on earth, beginnings of intelligence and humanity, an initial union with God. 
I personally do not see a conflict between the Genesis story and science if viewed from a much higher perspective. It just makes no sense at all to view the Genesis story as an actual, literal, day-by-day creation story. It kind of reduces God to a magician. The more science tells us about the facts of the universe the more we know about God. For example, the fact the iron in the hemoglobin in my blood that allows me to breathe was created by a super nova billions of years ago is far more awesome and spiritual than a one day "poof, there you are" creation. 
Maybe I'm crazy but that's how I look at it.