However, I believe you are drawing a rather flawed conclusion regarding other planets and the possibility of life elsewhere. The lack of biblical details concerning non-terran events does not mean that those events did not happen, IMHO. Additionally, the quotation of the bible regarding God sending his only son to earth does not preclude life elsewhere. It only precludes that his son (human male child) has not been there - which would be entirely likely if some non-terran life form was not human, would it not? Even the verse from Genesis regarding man being created in the image of God doesn't mean life is terran only.
Also, please understand I am not debating the validity of your beliefs, or the bible. I am debating your interpretations of inferences.