But theists no longer claim that God is just outside the last rim of the visible. God has moved to more secure accommodation - to an invisible fortress which shows not so much as a grain of mortar in the real world. Yet this is, paradoxically, His best defence. Because He cannot be inspected or measured His existence can never be disproved. This immaterial God is quite safe against attack from science.
Science can establish or disprove only testable statements and theories about the real world.
It cannot endorse or discount any set of beliefs that are not testable. Their scientific credentials give them a spurious credibility. Of course they have a right to their beliefs and opinions. But they do not have the right to speak out on these matters in the name of science. Even if the face of God appeared in the clouds to the whole world tomorrow, we still could not assume He was an immaterial entity.