The entire discussion is like a group of people from the 9th Century discussing whether humans can travel from one continent to another in less than a day. Science of that day had not progressed and still had 10 more centuries to go before airplanes were invented that made this a reality.
Gravity, the planets and galaxies have always existed from billions of years, however, were proved and explained much recently by Science.
So the question that I have is, Does God not exist because we have no proof of his existence? or, is it that science has not progressed yet to explain his existence? Can we tell that God may exist, but science cannot prove his existence? as in science was not in a position to accurately explain gravity in the 5th century BC, but that didn't mean that Gravity did not exist then.