Thanks for the good information everyone. As for the argument that many Christians don't believe in young-earth creationism; I was refering to ICR's viewpoint. My father happens to be a very religious man, but he's also a retired scientist from Lockheed Martin, and he can't stand the idea of making the bible the final authority upon which scientific observations are measured. I have no problem with a old-earth Christian viewpoint i.e. God created the world five billion years ago.