Do Aliens exsist in space

The answer to this question is still not yet found. However, some scientists are looking for alien (not on Earth) bacteria on some of Jupiter's moons. If you consider bacteria not found on Earth "alien" then you might be in luck. I think that the chances are very slim on finding any alien creature larger than an ameoba in our own solar system, and considering we haven't found a way to go to other solar systems out of ours, I think that it will be a while before we find anything.

Millions of 'em. They come from all places to the U.S. evey year. That's why we have border patrol. :)

Im am not sure if "aliens" exixt but i think that their is an other source of life located in the universe. Remember, for life all you need is Oxygen, Hydrogen, Water, Energy (food) and respiration.