You’d have had to have been asleep underneath that heavy news-proof rock I mention periodically to not have heard about the Earth-like planet discovered a little over twenty light years from the ball of rock we currently call home. For the more detailed facts of the matter (unfiltered by mainstream journalism and headline editors), I refer you on to the ever-reliable Centauri Dreams, which discusses what is known for certain (and what is mere conjecture) about the planet and the solar syastem it is situated in, and then looks at the potential of the planet as an environment habitable to humans. Of course, not everyone is particularly impressed by this – Michael Anissimov believes (with some justification) that we should use our time and effort more effectively, and stop getting excited about other planets until we’ve properly addressed the issues and potentials of the one we find ourselves on already.