The Earth is not alone, in the last few years scientists have found that are planet is just one of billions out there in the Milky Way galaxy and thanks to the help of the Kepler Telescope is has become quite clear that there may very well be more planets than there are stars.
Scientists are now scouring these planets for evidence of atmospheres, liquid water and life itself. Using scientific methods it is becoming easier to apply a formula of sorts to predict where life might possibly be given the presence of certain elements.
So is there another Earth? A place containing alien life? No body knows for sure just yet, but the truth is most certainly out there although are we ready for it?