without having the rover survive for six earth years, three mars sears, we would have never been able to discover the seasonal patterns that are at the heart of what was described. the final a few more words to jen's discovery. one thing that makes it so special is how it fulfills the role that curiosity has play. nassau charge this mission with detecting organics on mars. we've done that but it was more than that. we wanted to understand how organic molecules was incorporated would be there for us to discover all these worlds later. one environment that allowed it to resist that and that's remarkable from jens results that she can determine what types of molecules and environment allow them to persist. it's not only important for curiosity but also for future marsh missions to see direct signs of life. what this does is gives us confidence that when the missions get to mars, there could be something for them to discover. >> you're saying that martian years longer than the earth here. tell us about how the martian day is to an earth day. i think you have personal stories related to th

sears has been down but it's a winner right now. we play the organ music occasionally. it's up to percent but how about this one. nasa has found the building blocks of life on mars.l. does this mean there was life on mars in the past or there could be in the future? >> it means both. these are the building blocks that life needs to survive. the discovery really says that it's on the right track to find that this was the case. they know mars was habitable in the past, there were oceans on mars. this robot has found that. all the pieces are coming into play. the latest discovery kicks it into overdrive. >> does that mean, there are tens of billions of planets out there, does that mean therefore that odds are there has been life on other planets. >> finding the conditions that are right for life on another planet really set the stage. we know there are thousands of known confirmed planets that we've discovered with telescopes, and that's just in a tiny fraction. >> does this excite you guys. >> everyday. just the idea that there might be life on another planet or there might've been in the past and that we have the tools necessary to find it, this discovery, they've