Does alien life exist somewhere in the universe? Could be. I have no idea. And to be honest, I don't find this question to be all that interesting. Why? "Alien life" could refer to little more than single-cell organisms on a remote planet. Does sentient life exist somewhere in the universe? That is a more interesting question, but it still only takes us so far. The answer to this question might have little relevance to us.
What we'd like to know is whether sentient alien life has visited our planet from theirs. Has this happened during our lifetimes? If so, does our government know about it and are hiding it from us? Are aliens still visiting? Are any of the abduction stories accurate? If aliens have not visited, are they likely to do so in our lifetimes? These questions seem far more relevant.