Extrapolation........................

"Astronomers have worked out that there are 70 thousand million million million - or seven followed by 22 zeros - stars visible from the Earth through telescopes."

Full (dated) story here.  Notice the words "stars visible."   Of course they're not even hazarding a guess at how many planets are hanging around all those stars.  Seven followed by 22 zeros is a pretty big number, and yet, we still act as though our little world is the most important thing going.  Wonder why that is?

Thanks Gerard