Have you ever thought, about what will happened, if there were a slight modification in our so-little-yet-so-complicated DNA, so that we happened to walk on earth with three legs instead of two? Or maybe two mouths? Wow what a very noisy world we live. 🙂 I’ve just reading through articles and fiction stories about living in outside our galaxies recently, when suddenly this things knocking my senses: what if there was a slight alteration on these planets’ orbital path? Either the planet will be knocked out of the system and will be freezing to death, or will be engulfed in the system’s star.