to present you with a small token of our appreciation. [ applause ] if you would like to speak to dr. ochoa she will be available at stage right. we extend our thanks to the association of graduates, the endowment, the class of 1973 and all others who through their generosity make this possible. additionally, there are buses running every 20 minutes from the front of arnold hall back to fairchild hall and back to arnold hall. thank you. >> here's a look at what's coming up today on c-span3. next, a panel discussion with recent female recipients of the nobel peace prize. that's followed by a look at the history and use of executive power. then journalists from "the new yorker" and "the new york times" at an award ceremony for investigative journalism and later mickey edwards on the u.s. political system. and with congress on break this week, we're featuring some of american history tv's weekend programs in prime time on c-span3. tonight joins as we look at women's history starting at 8:00 p.m. eastern. former congresswoman pat schroeder from colorado and then remember pat nixon who traveled

dr. ellen ochoa. [ applause ] >> thank you very much. well, thank you. it's my pleasure to be here this morning and to be speaking with you. i've been real fortunate in my career. i was selected as an astronaut at a time when the space shuttle was flying quite regularly during the 1990s and had the opportunity to be on four different space shuttle missions. two of them were atmospheric research flights where we took experiments and were studying the problem of the ozone hole and ozone creation and depletion in our atmosphere. then the second two flights were part of the assembly of the international space station. my last flight was almost exactly ten years ago. it was in april 2002, and as i mentioned, it was part of the assembly of the space station. we took up the very first piece of the truss structure, which is now about 350 feet long. of course, that's the structure that the huge solar rays hang off of. after i talk, i'm going to show you some video both from that flight as well as some of the current views of the international had space station an