The Bible says that Jesus went to preach to other sheep. It's pretty vague as to where they are. I don't pretend to know where they are, but I do know that nothing else is said about it in the Bible.
That leaves me open to hope for myself that there are others besides humans that were created by God.
You may not feel the same way. One day we'll find out- in this life of after- whether or not we are alone in the universe. Till then, I will hope for some company.
I'd be interested to know what verse that is.
The verse you are thinking of is John 10:16 "And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd."
The Mormon's love this verse because they claim that Jesus was predicting his 'appearance' to the natives of North America. Understood in context, however, Jesus is speaking to a group of Jewish followers and is refering to the Gentiles. He's actually foretelling His New Testament Church.
I love science fiction and the idea of other worlds and alien civilizations.... but you just can't find anything in the Bible that supports such an idea. Everything in the Bible is very Earth and Mankind-centric, and you can't change the overall sentiment of 66 books by taking one verse out of context. The wonder of Creation is not 'out there in space' - It's you and I, right here on terra-firma, created in God's Image with intellect, emotion and free will.
Which doesn't mean that God didn't create other habitable worlds and civilizations (although I doubt it), it just means that the Bible doesn't support this claim.