They may not have to; I can't think of a religious faith that insists that humans are the only sentient beings in the universe. (John Polkinghorne [1] argues that even multi-verses are consistent with the notion of a Creator.)
> Do aliens get to go to heaven?
Same answer as above. And this assumes there is a heaven; not all religious people, indeed not even all 'Christians,' believe this. [2]
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[1] Polkinghorne is a retired Cambridge University professor of mathematical physics, a Fellow of the Royal Society, and a Knight Commander of the Order of the British Empire. He's now 80 years old; when he was 49 he went to seminary to become an Anglican priest, and has written a number of books about science and religion. See http://en.wikipedia.org/wiki/John_Polkinghorne.
[2] Some of us have provisionally concluded that a sensible way to bet is this: Over the very long term, the apparent on-going 'construction' of a cosmos, in which we seem to be participating, is likely to work out unimaginably wonderfully, but we really can't even speculate as to much more than that. See http://www.questioningchristian.com/2007/02/another_way_to_.... (Disclosure: I'm the author; the comments are worth reading as well.) EDIT: Polkinghorne has published what he describes as "naïve speculation" about how heaven might be explainable in terms of string theory. See http://www.questioningchristian.com/2006/04/resurrection_ap.....
God became man in Jesus in order to save us. So if
there are also other intelligent beings, it’s not a
given that they need redemption. They might have
remained in full friendship with their creator.
The article also includes an interesting quote from C. S. Lewis on the subject: I look forward with horror to contact with the other
inhabited planets, if there are such. We would only
transport to them all of our sin and our acquisitiveness,
and establish a new colonialism. I can’t bear to think of
it. But if we on Earth were to get right with God, of
course, all would be changed. Once we find ourselves
spiritually awakened, we can go to outer space and take
the good things with us. That is quite a different
matter.http://vox-nova.com/2009/10/10/on-multiple-worlds-and-multip...
EDIT: This is quite good too:
Explored in the film "Contact" and the Carl Sagan book upon which it was based. Though apparently the ending differs significantly between the two. (I enjoyed the movie, but haven't gotten around to reading the book).
He's quoting from the Doctrine & Covenants (like the Pauline epistles in that they're letters written by someone claiming to speak messages from God, but not like them in that they were written in the 1830s and 40s in America) and it's this more modern scripture that tends to talk about these kind of things. Basically any decent religion will start out with "Be nice to your neighbors" but when you start asking "Why?" it is inevitable going to end up in a discussion about the nature of the universe and its the modern scripture that tends to crystallize that a bit.
The example I was thinking of: http://lds.org/scriptures/dc-testament/dc/29.23-26?lang=eng#...
One citation: http://lds.org/scriptures/dc-testament/dc/76.16-24?lang=eng#... All to come forth in the resurrection of the just & unjust, through Christ the worlds are and were created, the inhabitants are sons and daughters of God.
And I think this news is still no proof for skeptical people (like myself). They found molecules that are very rare on earth and are now suggesting they originated in space:
"...but were unsure whether these materials actually originate in space. The presence of these three molecules, however, suggest that they do, potentially raising new questions..."
So just new questions and suggestions. No proof of alien life for me. But interesting!
Also; the existence or lack of existence of any alien life form would have no theological bearing on the western church. (That’s not to say that it would in the east. I just am ignorant of the details -- though if I was a betting man I would say that it is the same in that case also.) Wouldn’t change a thing; and not because it would get “swept under the carpet” but because it really changes nothing core to the dogma deemed necessary for the western church (i.e. the Ecumenical creeds).
And, just as an even further aside, some prominent Christian theologians believe that aliens might exist.
Sure, an agnostic might be put into a further tailspin, but so what? Most of the world's faithful have already demonstrated the enviable ability to suspend any desire to investigate the mechanics of their belief system. What difference will it matter that aliens were thrown into the equation?
1) They can't be absolved of their sins, since Jesus didn't die for them.
2) The Earthly Jesus died for all sentient beings across the universe, but the fact that he did so on Earth demonstrates that Earthlings have a special place in God's creation (also, note that the Old Testament Jews were God's chosen people).
In a religious context, no good can come of this.
3) Extraterrestrials did not necessarily experience The Fall, and therefor have no need of a savior.
I'm not aware of Lewis's argument, but I did think about this. It seems to me that we'd be able to determine this by simple inspection.
I assume that when we met these aliens, we'll be able to observe that they are sinful creatures: they will lie, steal, murder, etc., just like we do. This being the case, they'll need some mechanism for unloading those sins, won't they?
But: (1) maybe they won't be sinful; or (2) maybe there's some theological point that makes "The Fall" as such pivotal, so that other sins can be freely absolved, so long as one (or one's ancestors) haven't eaten from the tree of knowledge?
EDIT: As already referenced elsewhere in this thread, C.S. Lewis hypothesized -- a search through the thread for "Lewis" shows our interchange, and one other mention that doesn't reference aliens directly, but only the evil that humans could bring to them. And searching for "Fall" shows it nowhere else as a single word. So I think you're unfair in suggesting that my post was redundant.
I suppose people sooner call the aliens soulless demons or rethink their whole religion than go half way in one direction and then stop in the middle.
The Vatican's chief astronomer said that aliens likely have souls and he would "gladly baptize one if it asked".
http://www.guardian.co.uk/science/2010/sep/17/pope-astronome...
(from SMBC, and I can't find the original :-P)
[1] http://vox-nova.com/2009/10/10/on-multiple-worlds-and-multip...