dr. shostak? >> well, the probability of life, of course, it's hard to estimate because what we do know now and something we didn't know evently even 10, 20 years ago we did not know were there habitat that's could support life? what amon industry has proven in the last -- astronomy has proven they're made out of the same stuff, distant galaxies same 92 elements on the wall in your ninth grade classroom. so this means if you have taken chemistry in school, you don't have to take it again if you move to another galaxy. it's all the same everywhere. we know building blocks are there. we know there will be plenty of planets where you have liquid water and atmosphere, the conditions you have in hyattsville, for example. so life could arrive on any of these places we also know life began on earth very very, quickly. it's only a sample of one so not entirely convincing but it does suggest it wasn't very difficult for life to get a foothold on this planet so maybe elsewhere. so life i think is maybe not

dr. shostak? >> well, the probability of life, of course, it's hard to estimate because what we do know now and something we didn't know even 10, 20 years ago we did not know were there habitats that could support life? what astronomy has proven they're made out of the same stuff, distant galaxies same 92 elements on the wall in your ninth grade classroom. so this means if you have taken chemistry in school, you don't have to take it again if you move to another galaxy. it's all the same everywhere. we know building blocks are there. we know there will be plenty of planets where you have liquid water and atmosphere, the conditions you have in hyattsville, for example. so life could arrive on any of these places we also know life began on earth very, very quickly. it's only a sample of one so not entirely convincing but it does suggest it wasn't very difficult for life to get a foothold on this planet so maybe elsewhere. so life i think is maybe not so hard to get started. that's sort of the genera

dr. shostak? >> well, the probability of life, of course, it's hard to estimate because what we do know now and something we didn't know even 10, 20 years ago we did not know were there habitats that could support life? what astronomy has proven they're made out of the same stuff, distant galaxies same 92 elements on the wall in your ninth grade classroom. so this means if you have taken chemistry in school, you don't have to take it again if you move to another galaxy. it's all the same everywhere. we know building blocks are there. we know there will be plenty of planets where you have liquid water and atmosphere, the conditions you have in hyattsville, for example. so life could arrive on any of these places we also know life began on earth very, very quickly. it's only a sample of one so not entirely convincing but it does suggest it wasn't very difficult for life to get a foothold on this planet so maybe elsewhere. so life i think is maybe not so hard to get started. that's sort of the genera