more about the interconnectedness of the two fields of study. >> why don't we say nasa's core competence is building equipment that can observe the earth remotely in ways very much similar to how it's been observing planets remotely using space probes to gather information about planets of the solar system. we learned a great deal this way. what nasa has done is used the core competency to create a technology that has expanded our knowledge of the earth's eco system about 100 fold. we now have really good observational capability that brings us data about all all the earth's different systems, atmospheric, oceanic, surface soils and how it all works together. and so now we understand our planet much better than we ever had before. >> right. sometimes it takes getting off the planet to understand the planet that we just came from. >> yeah, that's very true. we have -- i was just going to say, it's a perfect place to