The possibility of life not from earth

To most people when they hear three little letters they immediately toon out of the conversation, those letters are U.F.O or unidentified flying object, which is almost always used as a synonym for Alien space craft in our “modern unsuperstishus society.” However when our government talks about UFOs or uses the term they are in most instances talking about just that an Unidentified Flying object, usually a spy sadilight or perhaps a plain that is not on the government roster. Stupid I know, however I am not talking about the conspiracy theorist stuff hear, I am talking about the probability that there I life other then our selves in this universe or even this existence? So what is the realistic probability? Well lets think about this realistically and practically for just a second, there are billions and billions of galaxies, and in these galaxies there are billions even trillions of solar systems, in each solar system there are any where from zero to three hundred planet sized rocks to record, this is not to mention the possibility of multiple universes, something that has been discussed quite fervently by many people I know. So who is to say that we are the only ones to ever exist and will be the only ones ever to exist? For example if you believe in evolution and you do not believe that there are aliens in our existence, you are basically telling me that evolution is something that is known only to our planit, and that life can and will never exist on other planets because of what? In fact this theory supports the existence of other life. As well if you believe in a god, do you truly think that god made a trillion tiny asteroids floating in the void of space so that man kind can simply gaze at them? I don’t by that for a minute, god or the gods who or what ever supreme being you believe in always dos something purposely, with intention dos he, she, or them not? The existence of brothers and sisters of ours in the stars is real, now weather we will ever have contact or have had contact is something all together different.