As the writer said, the Bible is earth centric as Genesis barely mentions the universe. IF there is intelligent life on other planets that have a soul, no doubt in my mind that Jesus Christ would also go there to bring eternal salvation to them as well. Would He go as a human, or as whatever species of intelligent life he's trying to reach? There's no way for us to know how or what God in His Infinite Wisdom would do? Frankly, it's none of our business. Luther wisely called some things mysteries and this is one of those. I don't believe we as Christians should fear finding other intelligent life or it finding us as that has no bearing on our salvation or beliefs in the Risen Christ who paid the price on earth for our salvation. That's all we really need to know.