"if a science book told you Jupiter had 12 moons, would you believe it or would you wait to look them up with a telescope first?"
This is such an absurd direction to take this argument in. I don't (and no other serious scientifically literate non-scientist, and especially no real scientists) just reads one "science book" and accept their word because its a "science book". You go by a preponderance of evidence. If I read about some subject in multiple books, using multiple approaches and experiments, from reliable sources, I will grow more likely to accept whatever that particular theory is. Less reliable and plentiful evidence leads to more skepticism.
But I am always prepared to change my view on even the most rock solid theory in the face of new evidence. But not from just one little tiny bit of contradictory evidence, one crack must lead to many many more for the whole structure of a theory to come down. It will happen again, because it has happened before (many times). If science can be said to be a religion, it is not that we are wed to particular facts or observations or theories of our universe. It is the scientific method, the ability to gain predictive knowledge through observation, theory, and testing, and a have greater understanding of the interactions of the world around us.
And it works. And, in addition to helping explain the amazing wonder of the universe, it gives us cool things, like the computer you type on and the car you drive around in and the hot water that comes out of your faucet.
But science isn't a religion. It does not purport to understand the underlying nature of the universe, or whatever this whole thing is. It only attempts to understand the interactions as best we are capable of observing them, whatever they are. Science isn't the enemy of religion. But religion is much better served when it does not step into the realm of the provably false, it hurts your staying power.
By the way, we have discovered 63 moons on Jupiter, but most of them are incredibly tiny. We will probably discover many more. There are only four really big ones, Europa, Ganymede, Callisto, and Io. Those, you can see with binoculars in your backyard. I urge to to try it, it's really quite beautiful to see it live. You can even take a picture and catch the moons in it, though you can't see them with the naked eye. You can also find some sweet pictures of them that we caught on the Voyager flybys on the internet if you google them.
Don't hate on scientists. Just because you haven't done your homework and accepted it on faith doesn't mean the rest of us just accepted it from our 8th grade science textbook too. And I'm not even a scientist, just a normal guy who finds the interesting.