Do you believe they exist? Why and why not? and if you do believe in them, do you feel they are here to help or harm us? Later, I will post a longer thread about different theories of aliens and whatnot, this is just a shorter and quicker version cause I'm tired right now lol For me, yes, I do believe they exist - atleast...I think I do. I haven't officially decided yet. I just feel like there is so much space and it would be self-centered to just assume we're the only ones. If they do exist, I feel there are bad aliens and good aliens, just like in the human race.