Science can only verify or reject concepts/ideas/predictions/phenomena that are clearly and unambiguously define.
If different people say there is an invisible balloon, some saying it is blue, some that it is red, others that it is cubic, some that its existence is assured by an angel, others that it was experienced by people in meditation, etc., all/some of them may be right, and all/some may be wrong: But science cannot prove or disprove such assertions.
If one proposes a clearly and universally acceptable definition of God, and empirically observable phenomena that could be theoretically derived from that, Scientists would rush to prove or disprove it.
As of now there has been no such thing.
So why don’t we keep God to ourselves: in our hearts and places of worship, in our Holy Books and hymns, and let Science do its job, independently of whether God exists or not?
Spurts of Thought 