One can't prove that God doesn't exist. But science makes God unnecessary. The laws of physics can explain the universe without the need for a creator.

I want to know why the universe exists, why there is something greater than nothing.

We each exist for but a short time, and in that time explore but a small part of the whole universe

There is nothing bigger or older than the universe.

Do you believe in first love - or should I pass by again?

Not to take this web of dualities as a sign we are on the right track would be a bit like believing that God put fossils into the rocks in order to mislead Darwin about the evolution of life.

In A Brief History Of Time I used the word "God" like Einstein did as a shorthand for the laws of physics. However, this is not what most people mean by God, so I have decided not to use the term. The laws of physics can explain the universe without the need for a God.