The Outside the Beltway publication provided this picture and reports at this link  a new study saying our Milky Way is teeming with earth like planets. Astronomers using NASA data have actually calculated that there are as many as 8.8 billion of them. More then one for each person on our earth. Long time planet hunter Geoff Marcy of the University of California Berkely says in our galaxy alone that is 8.8 billion throws of the biological dice. Next scientist hope to look for atmospheres. However if intelligent life is out there chances are we would have heard them by now. If they are anything like us they would be making some noise don't You think.