break to come in and chat with us. thank you, kristin. kristin: let s start with this big anniversary, curiosity on mars for seven years now. what have we learned during that time? so it s been an amazing journey. this little rover, curiosity i say little, it s about the size of a jeep it has discovered many things to include that the methane cycles on mars if are commensurate with the seasons of mars. that might not mean a lot to very many people, but it is an increased probability that we could find life on mars. curiosity has discovered that, you know, in this lake bed where it has been living for seven years, it has discovered that there is, in fact, evidence of mud and flowing water. there are pebbles that are perfectly round which which indicates that not only was it a lake bed that was stagnant, but there was actually flowing water. and so when we add all of this up to include the discovery of