This kind of question, assuming a comparable scientific validity in the Old and New Testaments with contemporary science is a dangerous approach to biblical faith. The Bible has no scientific validity. Interpreting biblical content as valid archeology, astrology, biology etc. will abolish Abrahamic religions before the end of this century.
I believe that God exists and that the Bible is "true;" however I do not view the Bible as a scientific document or the existence of God as something that can be verified by human experimentation at this time. The truth of God's existence is real but at a cognitive level beyond that of human beings,
I would expect that eventually science will discover God in its own terms. I think of the many things unknown or misunderstood by our science centuries ago, Today's Big Bang theory is almost as mysterious as Genesis, and so is our understanding of what lies beyond the range of our new, powerful radio-telescopes.The human mind is capable of discovering God, we just don't have the technology yet. Meantime, the myths of the Bible offer us a glimpse into reality otherwise beyond our cognition.