Does God Exist?

[Yelnoc]

As Mikado said, this question would be a lot easier to answer with a definition of "God."  When I hear that word, I think of the Gods created by men, of Allah and Jehovah and Zeus.  Those Gods do, or did exist in one form or another throughout history, so much as any concept held to be true by a multiplicity of humans can be said to "exist."  As Afleitch points out, there is the Sun, the most powerful body in the Solar System to which we owe are existence.  It certainly "exists" in every sense of the world.  Does it fulfill the criteria of "God"?  Our ancestors certainly thought so, though we modern, educated people refer to it now as only a star.  We understand how the nuclear reactions in its core produce light and heat; in so doing, we removed its Deity status.  From what I can see, the Gods are dying trample under the foot of progress.

[Yelnoc]

Just because you can't see something doesn't mean it isn't there.  If there is strong evidence that it is, then chances are that it does exist.

What is the strong evidence?  I'm genuinely curious.