Gotta answer the questions since UFO’s are back in 5he media.
My take is Aliens are not in the Bible and are therefore not Children of God, if they even exist.
My take is that the Bible is a recipe for finding our way to Christ and the Forgiveness of sins. It is NOT a technical manual for the Universe.
The Bible doesn't mention a great many things; yet, they exist just the same.
I can't understand why people can't accept life "out there" simply as part of the greater Creation. Why must they box God's work into their own tiny little view of things?
Perhaps you would be better spending your time trying to fit the bigger Creation into your view rather than limiting God.
Please recall that God did not write the Bible. Men did. God's guidance in that effort was to show the need and the way to Salvation and to set some behavioral ground rules. It did not strive to teach ancient sheep herders the technical issues of the physical sciences.