Maybe God is revealing Himself slowly to those non-believers, using their intellect and the disciplines they have decided to study, to show not only how He created the Universe and everything in it, but the sheer beauty of each system of life as it came into being, and adapted along the way.
In the meantime, we, who already believe He can do all things, can rejoice that those who have difficulty accepting Him through faith alone, can begin to believe through their own careful scientific observations. I'll rejoice for them, when they come to believe, even if they, as Thomas did, have to 'touch' Him in order to do so.