Based on a statistical analysis of all the Kepler observations, University of California, Berkeley, and University of Hawaii, Manoa, astronomers now estimate that one in five stars like the sun have planets about the size of Earth and a surface temperature conducive to life.
Given that about 20 percent of stars are sun-like, the researchers say, that amounts to several tens of billions of potentially habitable, Earth-size planets in the Milky Way Galaxy.

batsbrew
Based on a statistical analysis of all the Kepler observations, University of California, Berkeley, and University of Hawaii, Manoa, astronomers now estimate that one in five stars like the sun have planets about the size of Earth and a surface temperature conducive to life.
Given that about 20 percent of stars are sun-like, the researchers say, that amounts to several tens of billions of potentially habitable, Earth-size planets in the Milky Way Galaxy.

So...."size" is everything.

no, it takes 'surface temperature' as well
 
http://www.sciencedaily.com/releases/2013/11/131104152720.htm

I bet the Universe can only handle one FSF though...

Billions of years and we finally made it to.....
.....
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X3c.
Bet they can't say that........so where are the bakers from?....before landing in Boston.

 think they are from jersey....

Heck, for that matter, where did Boston come from???
 

batsbrew
 think they are from jersey....

LOL!
 
Life began in a place far, far away....a place called....jersey.

Yes, intelligent life arose somewhere in the swamps of Jersey.

The best way to demonstrate this propability of intelligent life elsewhere I've seen was by some scientist the name of whom I don't remember:
 
"Is there somebody somewhere we could communicate with? Surely there is or has been." (Throws a handfull of
bread crumbs into a flame. The crumbs burn and sparkle for a second). "Imagine that flash was the existance of the universe starting from the big boom. The main question is, do they exist at the same moment as we."