It would be a good idea to question the validity of any aliens presented to us.

I have never understood why it would make a difference concerning faith. You could say, why would God create other planets with humanoids ... but I would say, why would he not?

I dont think it would affect my faith one way or the other to know there was intelligent life on other planets.

What would be fun would be for aliens to show up and want to tell us about God. :)

atheists would still not believe.