Should the sacrament of baptism be reserved for humans only? No, I’m not talking about baptizing Fido, Mr. Fluffy, or Bessy. I’m talking about intelligent life out among the stars. Guy Consolmagno, one of the Pope’s astronomers says no, it is not.
Aliens might have souls and could choose to be baptised if humans ever met them, a Vatican scientist said today. The official also dismissed intelligent design as “bad theology” that had been “hijacked” by American creationist fundamentalists.
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Speaking ahead of a talk at the British Science Festival in Birmingham tomorrow, he said that the traditional definition of a soul was to have intelligence, free will, freedom to love and freedom to make decisions. “Any entity – no matter how many tentacles it has – has a soul.” Would he baptise an alien? “Only if they asked.”
So if we found intelligent life out in the stars, and they wanted to be baptized, would the sacrament be available to them?
Pope’s astronomer says he would baptise an alien if it asked him | The Guardian
TheoNerd 
This seems to assume that aliens exist. I think they do not and therefore we will not have to deal with this issue. When Carl Sagan posited that there could be millions of life forms out there, he was going on the false belief that there were only a few necessary parameters for life to exist as we know it. Now there are somewhere between 40-50 and that drastically reduced the possibility that life exists on another planet.
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