tdgeek: Is the rest of the universe made up of what our known sector is? I assume so as it all came from the Big Bang theory. There are not that many elements, they should exist everywhere, so I feel the criteria to create bilogical carbon based substances from a chemical reaction of existing elements and other factrors (water, electricity) should be the same as it was for Earth.

To me it comes down to what factors does Earth have, that a life supporting planet has? And whats the odds? Low I feel but we are here due to science and biology, and a number of factors met. It can happen elsewhere too, even to the point of sustaning like for millions of years to allow complex organisms, then what we term as intelligent life