dr. shostak. it is this, kind of a two-part question. what do you think, i can anticipate your answer a little bit on basis of your statement, but what do you think is the possibility of microbial life found in the universe or intelligent life being found in the universe? so the first question goes to the possibility. the second question would be what do you think is the likelihood of finding either microbial life or intelligent life in the universe, two different kind of questions? dr. shows stack. >> well the probability of life is hard to estimate, what we do know now, something we didn't know very recently, even 20 years ago, we did not know were there habitats that could support life? what astronomy has proven the last 500 years the entire universe is made out of the same stuff, right? most distant galaxies have same 92 elements on the wall in your 9th grade classroom, right if you've taken chemistry in school you don't have to take it again if you move to another galaxy. it is same everywher