Unless you've been hiding in a paper bag for the past day or so, (or possibly just not been connected to one of the many ways to acquire new information that the 21st Century provides for us) you're probably already aware that an "earthlike" planet has been discovered 20 light years away. You may not be aware that 229 planets have been discovered outside our solar system. That's right 229 planets. All discovered since 1989.
Other people talk more and better about this here (starting where Kathryn does the New planets dance for the 230th time).