http://markshea.blogspot.com/2008_05_01_archive.html#2053232600063100285
It turns out God made everything, not just Catholics
Therefore, if life turns up on other planets, it's not a problem for
the Catholic Church. I've never understood how somebody could think
that a religious tradition which already accepts the idea of non-human
created intelligences (namely, angels and demons) would have a crisis
if ET turned up. That's not to say he will. Along with Enrico Fermi,
my main question to believers in the Billions of Civilization is
"Where is everybody?"
But I think it would be hilarious if ET did turn up, was unfallen, and
proceeded to instruct the secularists in search of the ET Eschaton
that there is one God, the Father, the Almighty, Creator of Heaven and
Alpha Centauri Prime. Of course, if there are unfallen creatures
capable of space travel, they would probably, in their divine wisdom,
stay far away from us. On the other hand, if ET turns out to be fallen
like us and capable of interstellar flight, then I think it would be a
fine time to re-read The War of the Worlds.