Catherine Collins 10-22-96 Catherine_Collins: . . . . Tue, Oct 22, 9:04AM PDT Hi everyone. This is Catherine Collins at the Jet Propulsion Laboratory in Pasadena, California. I am the Chief of Opportunity and Outreach for the Stardust Project. Catherine - what kind of vehicle will fly into the comet? We are flying a small spacecraft -- only about 350 kg (do you know how many pounds that is?). It is the size of what I suspect your teacher's desk is except for the solar panels which extend out several feet. What will you find out from taking samples from the comet? Since comets are thought to be the remnants of the early solar system -- before the formation of the planets and their moons -- we hope to find out what is the material of our early solar system. The planets have been changed by weathering, tectonics, etc. But comets are the most unchanging, or "pristine", bodies in the solar system. How come the comets don't change? Most comets don't change and it is because they are kept in the relative deep freeze of space -- most comets come from the Kuiper Belt which is beyond Pluto, far from the sun, where it is cold. When comets come by the sun they heat up and lose some of their material. Will the space craft take off vertically like the ones Carol was talking about? I'm not sure who asked about the spacecraft taking off vertically. I was not on-line for Carol's chat but the Stardust spacecraft will launch on a Delta-2 rocket which is a vertical ascent launch vehicle (i.e. it shoots straight up!). What does it mean to be chief of opportunity and outreach do you really work on the mission itself? Chief of Opportunity and Outreach means that I handle all of the opportunities for involvement by people outside of the Stardust mission -- Public Outreach, Educational Outreach, Technology Transfer and Infusion, and use of small disadvantaged businesses. Yes, I really work on the Project -- at least that is what my business cards read! How does your psychology degree help you in your work? Why did you study that? My psychology helps with all areas of my life. It helps with my work which involves a great deal of interaction with people. I studied it because I find people fascinating and want to know what makes them work. What kinds of things do you do with television producers? Do you help make movies? I do not make the movies but I support the television producers and reporters when they come to JPL to find out more about Stardust. Can you explain how you took the pictures of the Shoemaker Levy comet crash - do you kow about photography? I worked on the "sequence" for the imaging team for the Shoemaker-Levy 9 pictures for Galileo. Navigation teams figure out where the spacecraft is in space (a bigger problem than you might think) and then give the information to the science teams. We then use computer programs to design a sequence to look at the object and take pictures. It involves pointing (geometry), developing exposures (physics), and a whole number of other skills. No, I do not know much about photography -- just math, physics, and computers. Do they hire special kinds of photographers for that? I wish I had more time to explain this. It's a big process involving lots of people. No, there are no special photographers. Photgraphy is about lighting and angles -- in other words, physics and math. Where a photographer does this by sight, we on space projects do it on the computer. We cannot "see" the picture until after we have taken it! Therefore, we rely on what we know about where we are, where the object is (in this case the comet and Jupiter), where the sun is, etc. We also have to know how the camera works, what filters it has and so on, and then we can write the computer sequence to take the pictures. I have to say here that while I wrote the imaging sequence, many other people were involved in the whole sequence -- other science teams, engineering teams, the navigation team, and finally the people who put the whole thing together, the Sequence team. Do you think it is more exciting to be involved in the outreach of the project and do you have to have the science background for that job or is it more public relations? Good question! I have to know about math and science for my job so that I can translate what Stardust is doing to the public. I use it every day. The public outreach part is fun because I get to tell people about something that I find really exciting -- space exploration. Are there any movies or videos that we could see about Stardust? We are in the process of making an animation and then, in the spring, a video. Keep an eye on our Web page - http://stardust.jpl.nasa.gov How long has this project been going on? We were selected from a competition last fall and "kicked off" in January. Some parts of the spacecraft are being built now. Could it also get cut from the budget? We just went through our Confirmation Review and got the thumbs-up for moving on -- i.e. we are fully funded. What kinds of things did you do when you grew up - how come you like to study so much and now so much? I liked to do lots of different things growing up. I took up horseback riding, baton (yes, I was briefly a Majorette in high school), then running, and to this day I love to dance. Mostly, I have always been a *big* reader. I don't know why I love to learn so much -- why do people like anything -- dancing, bikeriding, skiing? I believe that their are a lot of ways to experience the world and reading is one of them. Do you think you will stay in this career for a while? What other kinds of jobs would you like to do or do you think you would be good at with your background? I think I will stay in this career for a while. I do not know exactly what other things my skills are suited to -- I did not even know this job existed. Mostly, growing up you learn about certain professions -- doctor, engineer, firefighter, teacher. However, the majority of jobs are not so easily defined. It is important to find out what kinds of things you like to do and find a way to do them. Do you watch tv? I do not watch very much TV anymore. I find that it is a big time-sink for me and I am too busy to lose any time. I love movies and will watch a good TV movie or rent one. Mostly, I watch the news and also Friends, Seinfeld, and ER which I have to tape because I have a class on Thursday nights. I am using this chat for a group of teachers and they are so touched by your bio. they are hoping they can chat again with you with their students another time. We will however use your profile in class. Thank you so much for the kind words. I was nervous sending in my bio as I have not written one before. I look forward to chatting with your group and their students in the future. Do you think you will have children and will you work? Did you mom work when you were growing up? I would like to have children in the next few years. I will still work, although hopefully will have a flexible schedule. My mother did not work until I was in high school, and I was the youngest of 5 children. However, my mother is different from me. I need to go out and interact with my peers. My mother loves staying home with children and babysits my nephews and neice as often as she can. Every person is different. I know my husband would love to stay home with children if that is possible. What does your husband do? Is he as smart as you? My husband is a vice president of research and development of a small computer animation company. He is very smart and has a Ph.D. in computer science in artificial life studies. He also knows a lot about genetics. We have a lot of interesting talks which is part of the reason why I don't watch much TV. We also laugh a lot. a lot about genetics It seems like jobs just come your way. Is this normal for NASA or do usually have to apply for certain changes? Are there so many opportunities at NASA still? I don't know if jobs just come my way. There is an old saying about how when the student is ready, the teacher will come. This means that when a person is ready to be open to something new, an opportunity will present itself (or she will notice it for the first time). I moved into outreach when it was time for me to move on. In the meantime, without knowing it, I was preparing myself by studying and working hard. There are still many opportunities at NASA and the typical roles of engineer and scientist are evolving. A broad range of skills is valued as is a person's dedication to her/his work. When is the Stardust mission going to take place? Is this a one time shot or will it continue until you get the results you want? The Stardust mission is taking place now -- there is a lot more to a space mission than just the encounter with the planet or body -- like building the spacecraft and launching it! Stardust launches in February, 1999, encounters the comet Wild-2 (pronounced "vilt") in 2004 where it collects comet dust in the aerogel collectors, and returns the samples to Earth in January 2006. What is artificial life studies? I was afraid someone would ask me that! Seriously, from what my husband tells me, it is trying to simulate the randomness and patterns of life and evolution on the computer. Rob's (my husband) work had to do with simulating very large colonies of ants and their tendencies. He found that when he did this model, the results turned out very different from other models which used smaller numbers of ants. More next time... Do you think genetics or environment played a stronger role in your life? Ah! The nature versus nuture question. I have no way of knowing. I share a lot of similarities with my siblings but who knows to which to attribute them? I suspect that both environment and genetics affect us equally. Does it take that long for the spacecraft to reach the comet? 5 years? Stardust has a couple of challenges: needing to encounter the comet at a relatively low velocity so that the comet particles do not impact the spacecraft with such force as to destroy all or part of it and how to do this without a lot of rocket fuel (which is heavy) or nuclear power. The key to doing this is to use the enormous force of gravity of the planets to get us there. To do this, we have to comply with the motion of the planets and their orbits so it takes 5 years to get there. Okay last question...are your siblings as sucessful as you and were your parents also highly educated? Two of my brothers have a brokerage on the floor of the New York Stock Exchange. My other brother is the VP of purchasing and design for an import company. After 11 years as a highly successful marketing person for an industrial computer company my sister "retired" to raise her family, teach computer classes, and pursue a doctorate in theology. My father has an MBA and is the only one in his family with a college degree. My mother, the child of immigrants from Scotland and Germany, is the only one to have a high school diploma. For all the community college classes she has taken, she should have a degree! Can you tell I'm proud? We have the program SimAnt - does your husband know this? Thank you for chatting with us. Bye! I'll ask Rob about SimAnt. I look forward to chatting with you next time! Okay, signing off. This was fun! --Catherine Collins