People tend to only believe what the eyes can see. But what people don't know is that half the things you see are not what it seems to be...And as far as I know God is an awesome God and he knows the truth. Besides the universe is way too big to say that "we know". We don’t even know about the oceans on our own planet the place we call "home". C’mon now really! Any ways my conclusion and opinion is that... we dont even know our own backyard to say what god has created and placed in his space we are human and we humans are pretty dumb and ignorant what we know as humans is like one grain of sand in a desert.
I do not think we are the only planet with life. I don't think the life on other planets look like us but why should we be so conceited as to think this is the only planet that God saw fit to put life on?