On a philosophical note - I have often wondered if Jesus came also to alien civilizations.
And, was there a different Mary for each?
I’ve wondered the same thing.
If you’re really up for some philosophical and theological speculative fiction on the matter, read C.S. Lewis’ retro-sci-fi novels, “Out of the Silent Planet,” and “Perelandra.” By “retro” sci-fi, I mean that even in its day, we already knew better than the sci-fi concepts in the book, which are rather 19th century (ether between the planets, martian canals, etc.) Lewis is speculating theologically, not scientifically, so his novels romantically mimic the way people supposed the universe to be long earlier.
Isaac Asimov also wrote a short story (”starlight?”) about a civilization which knew its destruction (caused by its star going supernova) would herald the coming of the Messiah on a faraway planet (supposing that the star of Bethlehem was a supernova). Asimov was an atheist, but he played with the notion of Christianity quite a bit. (He even wrote an atheist version of the bible.)
Ray Bradbury believed in a Christian cosmos, a notion which is reflected in several of his stories. I think in the back of “the Martian Chronicales” (although it might be a different one of his books), he has a poem about Christs to other worlds.
For fascinating literature (not logic) on the topic, read C.S. Lewis’ intentionally retro-sci-fi, “Out of the Silent Planet.”