Hello, Professor B
I think we must resign ourselves to the fact, that there's billions upon billions galactics and stars in outer space. I'm not quite sure about the similarity of lifes with ours, but I'm a strong believer in extraterrestrial life. More then that, at times, I think we are ourselves, as species, once were cloned by a highly advanced civilization, but it wasn't too perfect idea.=) Rather a strange thought, huh?