Aliens - Our neighbors soon?

People have wondered since the beginning of time this eternal question. Are we really alone in the universe?
For me is a simple question to answer. Being the universe such a big place, it seems impossible that we are the only living beings in such a big place; moreover, that humans are the more intelligent race there is.
We have the Roswell case for example. Around the 1950's, in Roswell, New Mexico; there were reports of an unidentified flying object (UFO) crashing, but this was denied by the U.S. Army. Many people started an investigation about the event, yet they couldn't find any hard evidence about the crashing. The evidence is still there, hundreds of spaceships sightings, crop circles, abductions, at least a few of them must be real cases. Some people see they can't believe in what they can't see; however, in Jesus parables he says, how do you know the wind is there if you can't see it? People answer: because you can feel it, and that principle could be applied here.
At the end, I could say that, we're not alone in this huge space called universe, there is still many places to search and time to do it. All we have to do is apply ourselves and believe in the life out there.