So there's multiple things that can factor in, I'm not going to give a lot of detail, because I want to see if I can get a wide variety of facts and opinions.
I do not directly believe in aliens, but I personally believe that lifeforms do exist on other planets somewhere in the universe, however they're probably not near us, nor even in this galaxy.
Of course there's no facts to what I just said.

Anyone else care to shoot some opinions/facts around? The debate always interested me.