Who create God? Why there is always a confusion, misunderstanding and debates on the topic of God? Why do people want God? Isn't we are the one to make everything possible? We don't have to give our faith and hope to God. Isn't it ? Why God exists in all people mind? 
You have the right to believe in whatever you believe in and you also possess the right not to believe in anything at all. Its your right and your conviction. For those that believes including myself have a sense of feelings that things dont just happen by default without the hand of God like getting unmerited favor, saving from unnecessary attacks, praying for a particular thing and even getting response which means someone is listening and answering that prayer and that person is no other than God.
There is the difference.... Atheists rely on proof... those who believe in religion speak about truth without proof.
Just a challenge for those who doesn't believe in HIM to talk to them and to search more about them, Read bible especially the book of Genesis (the creation ) and the Revelation then come back here if you don't still believe in Him.
When you talk about science and proofs, please be aware that you can research just created, visible world, after the beginning of the universe.
Scientists can't research beyond time and space, before creation of all universe.
So, logical conclusion is that scientists can't prove God.
God is spiritual being, and we can see or feel him only with our spiritual body, spiritual eyes or hearth.