NASA is today supposed to make a jarring announcement about other worlds and the possibility of life on them. Okay, I suppose. But I am not terribly impressed at the idea.
I will go on the record as saying that I don't believe that there is other intelligent life, indeed that there is not any life at all, elsewhere in the galaxy. That is not etched in stone, for if the universe is huge and expanding as we're told then other life is admittedly not out of the question. Still, that old saw, what with the sprawling and expanding nature of the universe there must be intelligent life besides our own, isn't really a convincing argument. Space and time do not automatically mean that other life forms can or must have developed.
For starters, our immediately experience is that nothing else is there. We've found no hard and fast evidence of life in the local planets and solar systems, nor have we discovered anything notable in what other worlds have been identified elsewhere. It would be more logical at this point to assume that the more worlds without life, the less likely that there are in fact worlds with it. Further, why is it so outlandish to think that maybe, just maybe, we were touched by the Divine for a very singular purpose? Perhaps, only perhaps, I will allow, the rest of creation is here simply for our marvel, to appreciate the immensity of the Supreme Being? There is certainly no law of physics which states there must be life out there somewhere.
Yet if there is, it isn't as though such a find would alter what should be our proper view of things. If there are intelligent aliens, they would have been created by the same God. They would face the same issues which we do: seeing to their needs, their daily bread, and considering their responsibilities to their fellow creatures and to whomever else exists. In short, postulating alien life is interesting as an academic device. But would any such discoveries be, dare I say (I do so love puns), Earth shattering?
Of course not. So keep looking, if that's you life's work, and I will readily concede the error if proved wrong. But don't make it too much of a mission. There's an awful lot here on our world which could be as rewarding. Indeed, if you want to get to know others and make lives better, there's plenty of them around here for your entertainment.