“And God said, Let there be light: and there was light. And God saw the light, that it was good: and God divided the light from the darkness.”
As the rays of light penetrated the blackness of the “deep,” there were streaks and flashes of energy and light as “God divided the light from the darkness.” Science refers to this moment in time as The Big Bang and the Bible appears to corroborate that.
Over the eons, matter was formed into stellar bodies that revolved, rotated, and collided. After many more eons, they developed their own patterns and orbits, and became planets and moons or just plain rocks without any light of their own. Some of these would become awash with water and intermittent starlight and darkness, and would be known in biblical terms as the many waters.
The Many Waters 