Check out http://upload.wikimedia.org/wikipedia/commons/2/2f/Hubble_ultra_deep_field.jpg picture. It's a fairly big picture (3100x3100), so I wouldn't open it if you have a slow connection. I don't know if anyone on this forum seen this picture before, probably. :shrug:
I didn't care to read about it much, but when I looked at it before, there was something saying the Hubble telescope was pointed at a little black spot in the sky between some stars somewhere.
I also heard that every bit of light on it was a galaxy, and that one of the galaxies on there was too big for our understanding of physics to explain (I do not know if any of that was true or not, but that's what I read). If all of those dots are indeed galaxies (I really have no idea), which contain trillions of stars, each having the possibility of a planet and it being in the 'habitable zone' of the star, then it would be possible.
I would say that there is life somewhere besides earth and it's solar system.