I'm not certain how you can ask for an answer excluding scriptures on a forum called talk Jesus??? You start your post with the assumption that there is intelligent life outside of Earth simply because of the vastness of space. Yet it is the vastness of space that bears stark testament to the devastating effects of sin, the absence of a Saviour outside of Christ and the indelible need men have for him. Logically then, there cannot be intelligent life outside of Earth. Several proofs:
-Earth alone was the site of God's placement of man. The scripture is silent about the possibility of God seeding other planets thus we must assume he didnt.
-Earth alone was the site of the word of God being handed down to man. I renew here the same reasoning from the first point.
-It was to Earth alone that God was incarnated, that he visited, on which he died and became the vicarious offering for the sin of man.
-If there existed intelligent life on another planet that didnt need the visitation and thus the salvation of the incarnate Christ, then were would by fiat exist creatures for whom salvation was not needed. The sacrifice of Christ would not then be universal- there would be those who could say they existed without need of his salvation- this flies horrifically in the face of the BULK of the Bible and is blasphemous at worst, laughable at best.
-Man was originally intended to be caretaker of the animals on Earth- if life (not specifically intelligent) existed on other planets, it would have no one to lord over it. So why would God institute such a system here and nowhere else?
-A century and more ago, when secular science was still largely fringe science, discoveries were usually prefaced with the assumption of a God formed universe. Much of the enthusiasm and cabal surrounding the notion of life on other planets that we see today was considered heresy. The fervor to discover alien life was to drive a wedge in the once airtight idea of creation. So long as the possibility for other life existed, Earth could at any moment lose its specialness as ground zero for the plan of God thus calling into question other parts of scripture.