Most astronomers believe in God.
As far as I know, none of them believe in a steady state Universe.
Actually it was the acceptance of the big bang theory that turned most astronomers to the existence of God (if they did not already believe)
Scientific evidence points to a definite beginning, and refutes the idea that the system has always been here. No matter when you believe the universe was created, even 15 billion years (the most common estimate I have seen lately) is not enough time to account for the evolution of the universe and all the life in it.