The Second Day Might have been Creation of the Solar System

  On the second day, "God made the firmament." Depending on what this means, there is a parallel here, to what science teaches. Setting up a solar system is one of the very first things that must happen. Now, I don't know that setting up the solar system is, indeed, the heart of what the writer of Genesis is referring to, in speaking of the firmament.
   But, it is one of the possibilities, and I wonder.
   He might be referring to all of the universe, the creation of the whole universe. Who knows, when God said, "Let there be light," that might have been the Big Bang, and then creation of all the stars and everything else followed on the second day. Maybe that is the firmament being referred to.
   But, I wonder if Genesis isn't suggesting a more limited approach as to what the firmament is. If we assume that the light created the first day refers to the sun being established, then whatever happens on the second day is something that follows creation of the sun.
   And, creation of a solar system is that something.
   So, while there are other possibilities of what "the firmament" is referring to -- and they might be as good of possibilities as the solar system -- the solar system is a worthy thought.
   The solar system is the nearest of our heavenly neighbors. Creation of it likely accompanied  creation of the earth. So, that the organization of the solar system should be part of the creation story is a natural fit, and possibly what is being referred to.