Our sun is considered to be a star. There are millions of other stars out there in the universe. In theory, if we were able to get close enough to them, they "should" appear similar to our sun.
Although I can't completely convince myself of something that I have never seen, I could realistically see the possibility, that there are planets out there that orbit those suns. It's hard to believe that there wouldn't be, at least somewhere in the universe.
If that's the case and there are planets to go with other stars... Then I could very easily see the possibility that there are planets that hold at least "some" form of life.
Hey, wouldn't it be neat, if the things that floated aimlessly through space, were all remnants of wars that took place in other galaxies? Asteroids have to come from somewhere!
Ooooo! Here's a good one... What if Haley's Comet isn't so much a comet? Considering that it has a regular occurrence. Maybe it's a distress signal, or something like that. Shot out from a distant galaxy in an effort to seek help. Or maybe, it's just the hopes of someone, or something, that exists in a far off place. Maybe they just want to shoot out a warning flare to show others that they are out there, and that whoever sees it will know, they are not alone in the universe.
Hmm, mysteries of the unknown!
And as far as universe, would you consider that also to include the ground under our feet? Or the air we breath?
I'm referring to the undead, ghosts, demons, angels, anything in the spiritual realm. These things could exist on our own planet, right in front of our noses. Although we can't see them, it does mean that we aren't alone, if they do exist, that is!
I don't know, just some food for thought. I don't really sit around pondering the great unknown. I got better things to do. But, I just happen to have this goofy creative mind thing going for myself, and this was a pretty neat question, that gave me a chance to come up with some unique ideas. Or maybe I should just lay off the pain meds. haha!
Then again, maybe just for the heck of it, we should fire off a super flaming missile into space, in the same direction that Haley's comes from. Make document of it for posterity. Who knows, maybe hundreds of years from now, aliens will get the message that we are here. Then they will come find us and say hello... another couple hundred years after that, once they traveled from so many light years away, that we can't even come up with a number to describe it!