julia with canadian broadcasting. >> hello, this is julia with cbc. i have a couple of questions about the naming process. how did you decide to call the curiosity landing site gale? -- yellow knife? >> i think that is a question you'll have to ask the surface team. john grotzinger is certainly willing to talk about that at length. >> is the basic idea that there are old rocks on mars, and there are some of the oldest rocks in the world in yellowknife. was there more to it than that? >> unfortunately, you are just talking to the delivery guys here. >> yeah, we're just movers. [laughter] >> maybe you can tell me if it is normal practice to name the landing sites after cities in the world? [laughter] >> i think the naming convention was done by the science team. i am looking for a member but i do not see one. oh, wait, i do see one. let me see if she is prepared to answer the question. let us get her a microphone. >> perfect, thank you. >> i do not fully know what is behind the name, but i can make one correction which it is a quadrangle name. i think y