As you may know, astronomers for several decades have been finding planets outside of our own solar system. The total number found so far is, I believe, over 400.
For reasons having to do with the discovery process, most of those are very large planets. Also, most of them are too close or too far from their suns to be able to have liquid water, which is believed to be vital to the existence of life. Therefore, so far there haven't been any earth-like planets found where life could exist (according to our understanding of how life can form and even exist). But even within our own solar system, some of the moons of Saturn or Jupiter might be able to support life.
In any event, it is probably only a matter of time before planets similar to our own Earth are found. Of course that does not mean that they will be found to have life, let alone intelligent or highly evolved life.
But also, astronomers have been speculating about intelligent life outside of our own earth for a long time; and the famous, late Carl Sagan in fact proposed a formula for calculating the likelihood of extraterrestrial life given the enormous number of galaxies, each with many stars, and many stars no doubt having planets.
So if you want to believe the speculation and calculation, they're out there--though we have not yet contacted them. (Some people of course believe they have visited us.)
Well, if we do ever confirm the existence of creatures like ourselves (or not) elsewhere in the universe, that will pose a problem for religion. Christianity holds that God sent his Son to Earth. Did God send the same son--or anyone else that he progenerated--to other planets? If not, why was Earth singled out? Can we assume that somehow Earth is special in God's sight and was singled out for the blessing of having His Son sent to us?
So the eventual discovery or confirmation of life elsewhere should, in principle, pose a problem for religion--at least for Christianity. But you know what? I think it will survive. Some sci-fi writers have even speculated that Christianity will simply send missionaries and export its religion throughout the universe, just as it did all over the Earth.
That does make sense, haha. I certaintly would not want religious psychology to represent my own psychology.
Well, religion has survived the early great thinkers, the early astronomers, the Darwinists, dinosaur bones, modern telescopes, space travel, space probes, the computer age, etc. I guess it can survive more but hopefully there is a limit. One thing that gives me hope is that church attendance is down and young people are questioning everything.
social axiety from psychological perceptions of need, hmmm.