1 00:00:02,601 --> 00:00:03,836 >> Well hello everybody. 2 00:00:03,836 --> 00:00:06,205 Welcome inside Mission Control. 3 00:00:06,205 --> 00:00:09,175 We're welcoming the East Paulding Middle School students 4 00:00:09,175 --> 00:00:10,509 in Dallas, Georgia. 5 00:00:10,509 --> 00:00:14,380 We know you guys are outside Atlanta and I'm very pleased 6 00:00:14,380 --> 00:00:15,848 to have Heather Paul with me. 7 00:00:15,848 --> 00:00:18,150 She is a Mechanical Engineer. 8 00:00:18,150 --> 00:00:19,952 She graduated from high school in Atlanta 9 00:00:19,952 --> 00:00:23,756 so she's very familiar with that area. 10 00:00:23,756 --> 00:00:24,957 She currently is a Crew 11 00:00:24,957 --> 00:00:29,361 and Thermal Systems Division Engineer here 12 00:00:29,361 --> 00:00:32,064 at the Johnson Space Center and you're inside Mission Control 13 00:00:32,064 --> 00:00:35,201 where the Flight Control Team oversees all the operations 14 00:00:35,201 --> 00:00:37,036 of the International Space Station. 15 00:00:37,036 --> 00:00:39,004 We are very pleased to have you guys 16 00:00:39,004 --> 00:00:41,507 with us today, me and Heather. 17 00:00:41,507 --> 00:00:44,677 And she's going to handle all the hard questions 18 00:00:44,677 --> 00:00:46,178 that you guys may have for us. 19 00:00:46,178 --> 00:00:49,682 And Michael and I guess April Leachman, 20 00:00:49,682 --> 00:00:51,517 [phonetic] you're the teacher for these students 21 00:00:51,517 --> 00:00:54,019 so we're ready for y'alls questions. 22 00:00:54,019 --> 00:00:59,091 >> Hello, my name is Clark Vaughn. 23 00:00:59,091 --> 00:01:02,228 [phonetic] My question is if we ever lived on the moon, 24 00:01:02,228 --> 00:01:04,930 how would we transfer oxygen? 25 00:01:04,930 --> 00:01:07,533 >> Heather: Clark that is a very, very important question 26 00:01:07,533 --> 00:01:10,236 to think about because the moon doesn't have an atmosphere 27 00:01:10,236 --> 00:01:13,305 so we would have to provide our own oxygen 28 00:01:13,305 --> 00:01:14,673 for the astronauts to live. 29 00:01:14,673 --> 00:01:17,943 And we may bring some of the oxygen with us but most likely 30 00:01:17,943 --> 00:01:20,546 if we're looking at living on the moon for a longer period 31 00:01:20,546 --> 00:01:23,082 of time than we did for the Apollo days, we're going to have 32 00:01:23,082 --> 00:01:25,851 to figure out a way to generate that oxygen. 33 00:01:25,851 --> 00:01:27,953 So that is something that our engineers are working 34 00:01:27,953 --> 00:01:31,056 on right now in fact and not only generating the oxygen 35 00:01:31,056 --> 00:01:33,659 but recycling the oxygen that we use. 36 00:01:33,659 --> 00:01:36,428 You know we breathe in oxygen, we breathe out carbon dioxide 37 00:01:36,428 --> 00:01:40,499 so how could you recycle the oxygen out of your exhale 38 00:01:40,499 --> 00:01:42,935 and make sure that you pull the oxygen molecules in 39 00:01:42,935 --> 00:01:44,570 and maybe even generate oxygen 40 00:01:44,570 --> 00:01:46,939 from the carbon dioxide molecules? 41 00:01:48,774 --> 00:01:47,640 Great question. 42 00:01:48,774 --> 00:01:54,547 >> Hello, my name is Seth Grennon [phonetic] 43 00:01:54,547 --> 00:02:00,152 and will we ever be able to walk on the moon or walk on Mars? 44 00:02:00,152 --> 00:02:03,022 >> Heather: Seth, you know that's a question I often ask 45 00:02:03,022 --> 00:02:06,258 and we are working on our spacesuits and our vehicles 46 00:02:06,258 --> 00:02:09,228 and our robots and rovers to get us there and to work 47 00:02:09,228 --> 00:02:10,796 on the surface of Mars. 48 00:02:10,796 --> 00:02:13,832 As far as when that will happen, you know it's a challenge 49 00:02:13,832 --> 00:02:16,702 to get there, it's a lot further away than the moon. 50 00:02:16,702 --> 00:02:19,171 The moon only took us about two to three days to get there 51 00:02:19,171 --> 00:02:20,639 to get to do our work. 52 00:02:20,639 --> 00:02:23,309 Mars is a lot further away so it could take us anywhere 53 00:02:23,309 --> 00:02:25,911 from three to six months to get there so you got 54 00:02:25,911 --> 00:02:27,213 to let our engineers work hard 55 00:02:27,213 --> 00:02:29,615 on that new vehicles we're developing and our new suits 56 00:02:29,615 --> 00:02:32,151 and rovers and robots and then hopefully maybe you, 57 00:02:32,151 --> 00:02:35,588 maybe your classmates will get to either work with us here 58 00:02:35,588 --> 00:02:39,124 to be in Mission Control center or even fly 59 00:02:39,124 --> 00:02:43,829 and be a part of that crew. 60 00:02:43,829 --> 00:02:44,930 >> Thank you. 61 00:02:44,930 --> 00:02:48,067 >> Hello, my name is Rose Rawson [phonetic] 62 00:02:48,067 --> 00:02:53,405 and my question is are you ever worried that from the rockets, 63 00:02:53,405 --> 00:02:57,576 the fuel, that it will pollute outer space? 64 00:02:57,576 --> 00:03:00,212 >> Heather: I see, that's a very environmental question, 65 00:03:00,212 --> 00:03:01,513 absolutely. 66 00:03:01,513 --> 00:03:04,216 And we do a lot to really make sure that we understand 67 00:03:04,216 --> 00:03:07,620 where everything that we put out of our vehicles goes, 68 00:03:07,620 --> 00:03:11,123 whether it's our rocket fuel or even our trash 69 00:03:11,123 --> 00:03:12,992 or other things like that. 70 00:03:12,992 --> 00:03:15,628 So we're very, very aware of what kinds 71 00:03:15,628 --> 00:03:18,264 of things we're putting out into the atmosphere or, 72 00:03:18,264 --> 00:03:24,236 in the case of space, the lack of atmosphere. 73 00:03:24,236 --> 00:03:25,704 >> Thank you. 74 00:03:25,704 --> 00:03:27,706 >> My name is Brian Akuda [phonetic] 75 00:03:27,706 --> 00:03:33,579 and my question is can you like tell the weather from space 76 00:03:33,579 --> 00:03:37,049 of what the weather will be like here on earth? 77 00:03:37,049 --> 00:03:38,183 >> Heather: Absolutely. 78 00:03:38,183 --> 00:03:39,918 And in fact if you watch the news and you learn 79 00:03:39,918 --> 00:03:43,889 about you know storm systems, whether it's rain or snow, 80 00:03:43,889 --> 00:03:46,959 all of that information is coming from our satellites 81 00:03:46,959 --> 00:03:50,562 that we have positioned around our planets, in part thanks 82 00:03:50,562 --> 00:03:53,932 to our space shuttle and space missions. 83 00:03:53,932 --> 00:03:56,035 And so you know a lot of what we're doing 84 00:03:56,035 --> 00:03:58,771 in our space program is not only to go explore places 85 00:03:58,771 --> 00:04:03,108 like the moon or mars or even an asteroid but a huge influence is 86 00:04:03,108 --> 00:04:05,110 to make sure that we are effecting 87 00:04:05,110 --> 00:04:07,780 and benefiting life here on earth and that's 88 00:04:07,780 --> 00:04:11,317 through monitoring the weather and keeping everyone informed. 89 00:04:11,317 --> 00:04:12,685 >> Thank you. 90 00:04:12,685 --> 00:04:14,019 >> Great question. 91 00:04:14,019 --> 00:04:16,155 >> Hello, my name is Devan Swain [phonetic] and I wanted 92 00:04:16,155 --> 00:04:20,693 to know how do you assure 93 00:04:20,693 --> 00:04:25,397 that the astronauts have enough oxygen to survive in space? 94 00:04:25,397 --> 00:04:26,332 >> Great question. 95 00:04:26,332 --> 00:04:27,533 >> Heather: Excellent. 96 00:04:27,533 --> 00:04:28,901 You know I'm loving these life support questions 97 00:04:28,901 --> 00:04:31,337 because that's a lot of what I focus my engineering career 98 00:04:31,337 --> 00:04:35,240 on is making sure the astronauts have not only enough oxygen 99 00:04:35,240 --> 00:04:38,777 but good clean breathing oxygen to keep our astronauts alive 100 00:04:38,777 --> 00:04:40,312 so they can do all of their work 101 00:04:40,312 --> 00:04:42,614 and science onboard the space station. 102 00:04:42,614 --> 00:04:45,351 So we bring up oxygen with us when we fly 103 00:04:45,351 --> 00:04:47,152 but then we also can generate oxygen 104 00:04:47,152 --> 00:04:49,021 and we recycle that oxygen as well. 105 00:04:49,021 --> 00:04:52,091 Our spacesuits have oxygen tanks so it's kind 106 00:04:52,091 --> 00:04:54,860 of like your own portable breathing apparatus inside 107 00:04:54,860 --> 00:04:56,228 of the life support system. 108 00:04:56,228 --> 00:04:59,398 And then we have adequate oxygen onboard the space station 109 00:04:59,398 --> 00:05:01,533 as well. 110 00:05:01,533 --> 00:05:03,268 >> Thank you. 111 00:05:03,268 --> 00:05:07,306 >> My name is Patrick Huntington [phonetic]. 112 00:05:07,306 --> 00:05:11,810 And is NASA competitive with any other space programs? 113 00:05:11,810 --> 00:05:13,912 If so, who are they? 114 00:05:13,912 --> 00:05:15,314 >> Heather: Good question. 115 00:05:15,314 --> 00:05:17,816 Well back in the day, Patrick, we were actually in a space race 116 00:05:17,816 --> 00:05:21,220 with what are now our partners, the Russians. 117 00:05:21,220 --> 00:05:23,622 So a long time ago we were under more of a competition. 118 00:05:23,622 --> 00:05:27,459 But nowadays it's really all about teamwork. 119 00:05:27,459 --> 00:05:30,195 We have 16 international partners working 120 00:05:30,195 --> 00:05:33,532 on the International Space Station and it's more important 121 00:05:33,532 --> 00:05:35,634 to think about how we can work together instead 122 00:05:35,634 --> 00:05:36,969 of competing against each other. 123 00:05:36,969 --> 00:05:39,338 And we not only have our international partners 124 00:05:39,338 --> 00:05:41,140 for space station but we've now branched 125 00:05:41,140 --> 00:05:43,142 out to our industry partners, 126 00:05:43,142 --> 00:05:44,576 you know we just launched the Cygnus 127 00:05:44,576 --> 00:05:46,779 so that is a great example of one 128 00:05:46,779 --> 00:05:50,149 of our new commercial spacecraft that is going to connect 129 00:05:50,149 --> 00:05:53,519 with our space station in just a few days. 130 00:05:53,519 --> 00:05:55,220 >> Thank you. 131 00:05:57,222 --> 00:06:00,092 >> My name is Neal Jackson and I want 132 00:06:00,092 --> 00:06:02,161 to know what rocket fuel is made of? 133 00:06:02,161 --> 00:06:04,530 >> What rocket fuel is made of? 134 00:06:04,530 --> 00:06:06,331 >> Heather: Neal, what rocket fuel is made of? 135 00:06:06,331 --> 00:06:08,534 Well that depends on the rocket, I suppose. 136 00:06:08,534 --> 00:06:12,304 You know our space shuttle had solid propellant as well 137 00:06:12,304 --> 00:06:14,940 as liquid and I don't know the exact formulation 138 00:06:14,940 --> 00:06:17,943 because that is not my area of expertise. 139 00:06:17,943 --> 00:06:20,712 But really when you think about where you're going in space, 140 00:06:20,712 --> 00:06:22,047 that's going to determine what kind 141 00:06:22,047 --> 00:06:23,449 of propellant you would use. 142 00:06:23,449 --> 00:06:26,318 So if you're going into lower orbit, you probably don't need 143 00:06:26,318 --> 00:06:28,854 as much as you would need if you were going to a place 144 00:06:28,854 --> 00:06:31,457 like the moon or even further like Mars. 145 00:06:31,457 --> 00:06:35,928 That's a very good question. 146 00:06:35,928 --> 00:06:37,930 >> Thank you. 147 00:06:37,930 --> 00:06:39,131 >> Well my name is Connor Pitts [phonetic] 148 00:06:39,131 --> 00:06:41,433 and my question is what is your plan 149 00:06:41,433 --> 00:06:43,936 to put people back on space? 150 00:06:43,936 --> 00:06:45,437 >> Heather: Well Connor we have people 151 00:06:45,437 --> 00:06:48,540 in space right now onboard the International Space Station, 152 00:06:48,540 --> 00:06:50,476 living up there for about six months at a time. 153 00:06:50,476 --> 00:06:55,013 And we just recently selected our first astronaut 154 00:06:55,013 --> 00:06:57,749 and cosmonaut who are going to live onboard the space station 155 00:06:57,749 --> 00:07:00,085 for one year continuously. 156 00:07:00,085 --> 00:07:03,055 So we have people up there pretty much 24 hours a day, 157 00:07:03,055 --> 00:07:04,823 seven days a week right now. 158 00:07:04,823 --> 00:07:07,793 Now as far as looking to our next destination, we're trying 159 00:07:07,793 --> 00:07:09,862 to figure out if we want to go back to the moon, 160 00:07:09,862 --> 00:07:12,030 which would be pretty cool, in my opinion. 161 00:07:12,030 --> 00:07:13,999 Or maybe even go and find an asteroid 162 00:07:13,999 --> 00:07:16,902 and bring it back closer to the earth so we can study it. 163 00:07:16,902 --> 00:07:20,873 Or eventually go on to Mars. 164 00:07:20,873 --> 00:07:22,007 >> Thank you. 165 00:07:22,007 --> 00:07:26,111 >> My name is Olivia Ritika [phonetic] 166 00:07:26,111 --> 00:07:29,214 and my question is what materials are 167 00:07:29,214 --> 00:07:31,750 in the present day spacesuit? 168 00:07:31,750 --> 00:07:33,085 >> Heather: Excellent question. 169 00:07:33,085 --> 00:07:35,320 And there are several different layers in our space suit. 170 00:07:35,320 --> 00:07:39,291 And all of those layers are important because they make sure 171 00:07:39,291 --> 00:07:41,960 that the astronaut stays alive inside of the suit as well 172 00:07:41,960 --> 00:07:44,496 as thermally protected. 173 00:07:44,496 --> 00:07:48,233 So we first have a layer that kind of acts not as flexible 174 00:07:48,233 --> 00:07:51,503 as a balloon but a balloon, when you inflate it with air, 175 00:07:51,503 --> 00:07:54,573 it holds that air, especially if you tie it up really tight. 176 00:07:54,573 --> 00:07:57,142 Well because we essentially inflate our spacesuit 177 00:07:57,142 --> 00:07:59,811 with oxygen, you need a layer, a pressure layer, that's going 178 00:07:59,811 --> 00:08:02,180 to hold that oxygen in. 179 00:08:02,180 --> 00:08:04,983 But once you inflate a balloon it tends to get kind of rigid 180 00:08:04,983 --> 00:08:06,351 and it wants to stay in the shape 181 00:08:06,351 --> 00:08:08,186 that it's been designed to be. 182 00:08:08,186 --> 00:08:09,922 The spacesuit is no different. 183 00:08:09,922 --> 00:08:12,925 So then the second layer is what we call a restrain layer. 184 00:08:12,925 --> 00:08:14,826 And it's made out of Dacron which is found 185 00:08:14,826 --> 00:08:16,895 in a lot of camping equipment. 186 00:08:16,895 --> 00:08:21,533 It's a very nice lightweight, somewhat flexible material. 187 00:08:21,533 --> 00:08:24,770 And we can sew that material to make the spacesuit into more 188 00:08:24,770 --> 00:08:27,406 of a human shape and that's what's going to hold 189 00:08:27,406 --> 00:08:29,541 that bladder, that pressure layer in 190 00:08:29,541 --> 00:08:31,677 and make sure it doesn't over pressurize. 191 00:08:31,677 --> 00:08:36,281 And then we have a multilayer garment that first starts off 192 00:08:36,281 --> 00:08:39,618 with neoprene and if any of you are interested in scuba diving, 193 00:08:39,618 --> 00:08:42,621 you would wear a wet suit that's primarily made out of neoprene 194 00:08:42,621 --> 00:08:44,356 to make sure that you stay nice and warm, 195 00:08:44,356 --> 00:08:47,926 especially if you go deeper into the water environments. 196 00:08:47,926 --> 00:08:50,729 We have neoprene in the spacesuit for the same reason, 197 00:08:50,729 --> 00:08:53,231 to keep our astronauts comfortable inside. 198 00:08:53,231 --> 00:08:54,766 Then we have multiple layers 199 00:08:54,766 --> 00:08:57,402 of a really shiny material called Mylar. 200 00:08:57,402 --> 00:08:59,538 And if you've ever gotten a happy birthday balloon 201 00:08:59,538 --> 00:09:01,907 from a grocery store, one of those shiny ones, 202 00:09:01,907 --> 00:09:03,909 that's basically made of a thicker Mylar 203 00:09:03,909 --> 00:09:06,044 than what we have in the spacesuit. 204 00:09:06,044 --> 00:09:08,880 Or here in Texas, every day in summer we have to put 205 00:09:08,880 --> 00:09:10,315 up those sun shields here in the car, 206 00:09:10,315 --> 00:09:11,783 otherwise the car gets really hot. 207 00:09:11,783 --> 00:09:14,386 Well mine is made out of Mylar so I always think about that. 208 00:09:14,386 --> 00:09:16,688 Hey cool. I'm in a spacesuit right now. 209 00:09:16,688 --> 00:09:19,124 And then the outer garment that's light is actually a 210 00:09:19,124 --> 00:09:22,094 combination of materials of nomex which is in our a lot 211 00:09:22,094 --> 00:09:24,963 of our firefighter suits, Kevlar, 212 00:09:24,963 --> 00:09:26,732 which is in bullet proof vests 213 00:09:26,732 --> 00:09:28,533 and then a little bit of Teflon as well. 214 00:09:28,533 --> 00:09:31,803 So a lot of really common materials that we use here 215 00:09:31,803 --> 00:09:37,909 on earth we've developed into a garment that makes a spacesuit. 216 00:09:37,909 --> 00:09:39,378 >> Thank you. 217 00:09:39,378 --> 00:09:40,479 >> Great question. 218 00:09:40,479 --> 00:09:46,284 >> Hi, my name is Hannah Vandermet [phonetic] 219 00:09:46,284 --> 00:09:50,522 and my question is what is the furthest planet 220 00:09:50,522 --> 00:09:53,258 that NASA has been to? 221 00:09:53,258 --> 00:09:54,626 >> Heather: Excellent question. 222 00:09:54,626 --> 00:09:57,896 Well the farthest that we've been with humans is to the moon 223 00:09:57,896 --> 00:09:59,965 and that's not really a planet. 224 00:09:59,965 --> 00:10:03,001 But of course we've got our rovers on Mars right now 225 00:10:03,001 --> 00:10:05,003 and we've got a lot of different vehicles that are 226 00:10:05,003 --> 00:10:07,639 out there exploring space even beyond 227 00:10:07,639 --> 00:10:10,375 and I think one just recently went even beyond our 228 00:10:10,375 --> 00:10:11,543 solar system. 229 00:10:11,543 --> 00:10:12,644 >> Yep, Voyager 1. 230 00:10:12,644 --> 00:10:13,879 >> Heather: That's right, Voyager 1 is 231 00:10:13,879 --> 00:10:15,614 out there collecting great information 232 00:10:15,614 --> 00:10:17,482 for our scientists and engineers. 233 00:10:17,482 --> 00:10:20,018 >> Thank you. 234 00:10:20,018 --> 00:10:24,856 >> Hi, my name is Drew Patterson. 235 00:10:24,856 --> 00:10:26,124 [phonetic] I was going to ask, 236 00:10:26,124 --> 00:10:28,427 how many degrees have you earned? 237 00:10:28,427 --> 00:10:30,929 >> Heather: Alright Drew, well that is a great question. 238 00:10:30,929 --> 00:10:32,097 I started off 239 00:10:32,097 --> 00:10:33,465 >> This is going to be a long answer. 240 00:10:33,465 --> 00:10:34,800 [laughter] 241 00:10:34,800 --> 00:10:38,103 >> Heather: I started off at Auburn University in Alabama 242 00:10:38,103 --> 00:10:40,972 and I studied Mechanical Engineering and Spanish 243 00:10:40,972 --> 00:10:43,075 so I have two undergraduate degrees. 244 00:10:43,075 --> 00:10:46,011 And during that time I actually was also a student working 245 00:10:46,011 --> 00:10:48,980 at NASA so it was a great way to kind of get some work experience 246 00:10:48,980 --> 00:10:51,416 in to try to figure out what type 247 00:10:51,416 --> 00:10:52,784 of engineering work I'd want to do 248 00:10:52,784 --> 00:10:54,486 when I eventually got hired here. 249 00:10:54,486 --> 00:10:57,823 I then went to the University of Texas at Austin 250 00:10:57,823 --> 00:11:00,058 to continue my Mechanical Engineering studies 251 00:11:00,058 --> 00:11:02,194 and I got a Master's Degree there. 252 00:11:02,194 --> 00:11:03,762 Then I joined the NASA workforce 253 00:11:03,762 --> 00:11:05,497 and a few years afterwards I realized 254 00:11:05,497 --> 00:11:08,433 that I just was not done with my education and I went 255 00:11:08,433 --> 00:11:10,569 to the University of Houston, Clear Lake 256 00:11:10,569 --> 00:11:13,672 and got a Master's Degree in Fitness and Human Performance 257 00:11:13,672 --> 00:11:15,373 to really get a better understanding 258 00:11:15,373 --> 00:11:19,177 of how the human body works when we're under exercise. 259 00:11:19,177 --> 00:11:22,647 And I've spent a long time working with our spacesuit team 260 00:11:22,647 --> 00:11:25,684 and we talk about working with spacesuit, it's really about six 261 00:11:25,684 --> 00:11:28,553 to eight hours of exercise so thinking about how 262 00:11:28,553 --> 00:11:30,522 to prepare enough oxygen for them to breathe, 263 00:11:30,522 --> 00:11:33,592 you have to understand how exercise effects your heart 264 00:11:33,592 --> 00:11:35,393 rate, your lung capacity. 265 00:11:35,393 --> 00:11:39,097 >> I think that's a really good example 266 00:11:39,097 --> 00:11:41,833 of how your education can continue even 267 00:11:41,833 --> 00:11:43,101 after you finish school. 268 00:11:43,101 --> 00:11:44,970 I know you're probably thinking right now, I don't want 269 00:11:44,970 --> 00:11:46,872 to go to school anymore. 270 00:11:46,872 --> 00:11:49,474 But you may want to once you've gotten out 271 00:11:49,474 --> 00:11:53,245 and you started working and you say there's so much more 272 00:11:53,245 --> 00:11:56,515 that I want to learn and Heather is a perfect example of someone 273 00:11:56,515 --> 00:12:01,319 who continues to want to learn even after being a professional 274 00:12:01,319 --> 00:12:04,089 and working you know after school. 275 00:12:04,089 --> 00:12:07,025 And so that's a really good question and you guys, 276 00:12:07,025 --> 00:12:10,929 don't feel like you stop at high school or college. 277 00:12:10,929 --> 00:12:14,299 You can keep learning even after you're working. 278 00:12:14,299 --> 00:12:21,907 >> Hello, my name is Leona Nackey [phonetic] 279 00:12:21,907 --> 00:12:26,044 and my question is how many gallons of fuel does it take 280 00:12:26,044 --> 00:12:30,949 to launch the rockets to the moon? 281 00:12:30,949 --> 00:12:32,651 >> Heather: Man this is a toughie. 282 00:12:32,651 --> 00:12:35,253 I don't know. 283 00:12:35,253 --> 00:12:37,389 I'd have to go and look that up. 284 00:12:37,389 --> 00:12:38,924 >> Yeah, I know that the space shuttle, 285 00:12:38,924 --> 00:12:40,659 which we just retired obviously. 286 00:12:40,659 --> 00:12:46,531 It's about a half a million gallons of propellant oxygen 287 00:12:46,531 --> 00:12:52,437 and hydrogen that's required to get a space shuttle into orbit. 288 00:12:52,437 --> 00:12:56,141 And the moon rockets back in the late 60's, 289 00:12:56,141 --> 00:12:59,211 early 70's was even more than that. 290 00:12:59,211 --> 00:13:02,280 Remembering that the atmosphere is very thick 291 00:13:02,280 --> 00:13:05,984 and the hardest part of a rocket launch is actually the first two 292 00:13:05,984 --> 00:13:08,753 minutes or so and once you get past that you get 293 00:13:08,753 --> 00:13:10,722 into the thin part of the atmosphere, 294 00:13:10,722 --> 00:13:13,592 the vehicles engines start accelerating the vehicle 295 00:13:13,592 --> 00:13:15,060 because the atmosphere is so thin. 296 00:13:15,060 --> 00:13:17,896 And suddenly you get to a point where you're almost 297 00:13:17,896 --> 00:13:20,265 out of the atmosphere completely. 298 00:13:20,265 --> 00:13:22,567 And so you don't need as much propellant to move 299 00:13:22,567 --> 00:13:26,104 around once you're in space but you still require it to move. 300 00:13:26,104 --> 00:13:28,106 But that's a great question. 301 00:13:28,106 --> 00:13:29,941 It takes a great deal of propellant 302 00:13:29,941 --> 00:13:31,610 to break earth's gravity. 303 00:13:31,610 --> 00:13:35,180 And so living in space and moving from space 304 00:13:35,180 --> 00:13:39,084 to further deeper space you know may eventually be the way to go 305 00:13:39,084 --> 00:13:43,255 and produce propellant depots in space where you refuel, 306 00:13:43,255 --> 00:13:45,257 like a gas station, and then go further, 307 00:13:45,257 --> 00:13:47,525 because you might not need as much out there. 308 00:13:47,525 --> 00:13:48,760 That's a great question. 309 00:13:48,760 --> 00:13:50,462 >> Heather: Really great and that really relies a lot 310 00:13:50,462 --> 00:13:53,865 on orbital mechanics too, understanding how 311 00:13:53,865 --> 00:13:57,669 if you can do a loop or two around a planet like earth 312 00:13:57,669 --> 00:13:59,504 or maybe even around the moon, 313 00:13:59,504 --> 00:14:01,573 you can use that gravitational pull 314 00:14:01,573 --> 00:14:03,675 to essentially slingshot your vehicle 315 00:14:03,675 --> 00:14:06,077 so maybe you don't need as much propellant. 316 00:14:06,077 --> 00:14:08,613 The more propellant you have on launch, 317 00:14:08,613 --> 00:14:11,683 the heavier your vehicle is, the harder it is to really get 318 00:14:11,683 --> 00:14:13,652 up into space so our engineers 319 00:14:13,652 --> 00:14:15,720 and our scientists are really smart about looking 320 00:14:15,720 --> 00:14:18,490 at all the different options for if we want to go from earth 321 00:14:18,490 --> 00:14:20,125 to a destination, what's going 322 00:14:20,125 --> 00:14:25,931 to be the most fuel efficient way to get there. 323 00:14:25,931 --> 00:14:27,332 >> Thanks. 324 00:14:27,332 --> 00:14:33,138 >> Hi, my name is Kennedy and I was wondering, 325 00:14:33,138 --> 00:14:35,974 how long did you stay in college to have this job? 326 00:14:35,974 --> 00:14:38,543 >> Heather: Good question, Kennedy. 327 00:14:38,543 --> 00:14:43,782 Well I was at Auburn University for a total of about 41/2 years. 328 00:14:43,782 --> 00:14:46,651 That's my time that I was actually at school. 329 00:14:46,651 --> 00:14:50,021 But I was also taking some time to do a semester at school 330 00:14:50,021 --> 00:14:53,258 and a semester at NASA so it took me probably 331 00:14:53,258 --> 00:14:57,729 about seven years total to get through my school as well 332 00:14:57,729 --> 00:14:59,097 as my work experience. 333 00:14:59,097 --> 00:15:01,599 And I decided to extend out my work experience a little bit 334 00:15:01,599 --> 00:15:04,102 because I just loved so much working here. 335 00:15:04,102 --> 00:15:07,605 And it really helped me to understand what all of that, 336 00:15:07,605 --> 00:15:09,708 those theories and those homework projects that I had 337 00:15:09,708 --> 00:15:12,744 to learn at school, how to apply them to really cool stuff 338 00:15:12,744 --> 00:15:13,912 that could fly in space. 339 00:15:13,912 --> 00:15:15,947 So I thought it was an important thing for me 340 00:15:15,947 --> 00:15:19,484 to really do my research here at NASA too to figure 341 00:15:19,484 --> 00:15:20,719 out where I would best fit in 342 00:15:20,719 --> 00:15:23,121 and what I wanted to do in my career. 343 00:15:23,121 --> 00:15:25,523 Then my graduate degree took me about two years. 344 00:15:25,523 --> 00:15:28,293 And even then I was still alternating between a semester 345 00:15:28,293 --> 00:15:31,496 at school and a semester here at Houston, Texas. 346 00:15:31,496 --> 00:15:37,635 [ Silence ] 347 00:15:37,635 --> 00:15:39,437 >> Hi, my name is Danny. 348 00:15:39,437 --> 00:15:44,175 What is your favorite part of your job? 349 00:15:44,175 --> 00:15:45,210 >> Heather: Oh Danny, wow. 350 00:15:45,210 --> 00:15:47,412 I wish I could answer several things. 351 00:15:47,412 --> 00:15:49,681 You know I think one of the favorite things that I think 352 00:15:49,681 --> 00:15:51,850 about when I get to work here is working 353 00:15:51,850 --> 00:15:54,252 with this great team of people. 354 00:15:54,252 --> 00:15:55,787 It's really all about teamwork here. 355 00:15:55,787 --> 00:15:57,255 When you look at the Mission Control Center, 356 00:15:57,255 --> 00:15:58,623 I mean there's several people here 357 00:15:58,623 --> 00:16:01,092 that are all working together as a team 358 00:16:01,092 --> 00:16:04,195 to make sure astronauts are living successfully 359 00:16:04,195 --> 00:16:05,697 and working onboard the Space Station 360 00:16:05,697 --> 00:16:08,767 and even behind the scenes we have rooms full of people 361 00:16:08,767 --> 00:16:11,236 that are supporting each person here in mission control. 362 00:16:11,236 --> 00:16:13,438 And then engineers and scientists all 363 00:16:13,438 --> 00:16:16,608 across Johnson Space Center, all across the United States 364 00:16:16,608 --> 00:16:20,011 at our different NASA centers and just the amount of teamwork 365 00:16:20,011 --> 00:16:21,413 and effort and communication, 366 00:16:21,413 --> 00:16:23,748 it's just amazing to be a part of. 367 00:16:23,748 --> 00:16:25,083 And then the other thing I like to think 368 00:16:25,083 --> 00:16:27,619 about with my engineering career is a really see myself 369 00:16:27,619 --> 00:16:30,722 as a problem solver so if you like solving puzzles, 370 00:16:30,722 --> 00:16:34,993 whether it's Sudoku, a crossword or putting a jigsaw together, 371 00:16:34,993 --> 00:16:36,394 that's really the heart and essence 372 00:16:36,394 --> 00:16:39,964 of engineering is being willing to look at problem and see it 373 00:16:39,964 --> 00:16:42,233 as a creative challenge and how can you overcome 374 00:16:42,233 --> 00:16:43,968 that and fix that problem? 375 00:16:43,968 --> 00:16:46,504 So I like to say we're problem solvers. 376 00:16:46,504 --> 00:16:52,343 [ Silence ] 377 00:16:52,343 --> 00:16:54,879 >> Hi, my name is Abbey and I was wondering 378 00:16:54,879 --> 00:16:57,449 about how old you were when you decided you wanted 379 00:16:57,449 --> 00:16:58,750 to become an engineer? 380 00:16:58,750 --> 00:17:00,285 >> That's a great question. 381 00:17:00,285 --> 00:17:01,886 >> Heather: That's a great question, Abbey: 382 00:17:01,886 --> 00:17:05,190 I was interested in space from a very, very young age. 383 00:17:05,190 --> 00:17:06,524 But when I decided I wanted 384 00:17:06,524 --> 00:17:09,160 to become an engineer was probably about your age. 385 00:17:09,160 --> 00:17:12,997 I started realizing that to be an astronaut you could go 386 00:17:12,997 --> 00:17:15,567 down a couple of different career paths and one 387 00:17:15,567 --> 00:17:17,135 of them was engineering. 388 00:17:17,135 --> 00:17:19,604 And the benefit with going into engineering was 389 00:17:19,604 --> 00:17:22,207 that if I didn't end up getting selected to be an astronaut, 390 00:17:22,207 --> 00:17:25,310 I could do what's really a very close second 391 00:17:25,310 --> 00:17:28,780 which is be an engineer that works and trains the astronauts 392 00:17:28,780 --> 00:17:30,115 and develops the hardware 393 00:17:30,115 --> 00:17:32,250 that the astronauts get to use in space. 394 00:17:32,250 --> 00:17:34,018 And in fact, a lot of the training 395 00:17:34,018 --> 00:17:36,321 that our astronauts go through, our engineers have to do 396 00:17:36,321 --> 00:17:38,323 as well, especially when you're thinking 397 00:17:38,323 --> 00:17:40,191 about a spacesuit design or some hardware 398 00:17:40,191 --> 00:17:43,128 that the astronauts are going to use, our engineers have 399 00:17:43,128 --> 00:17:46,030 to be familiar with working with that same equipment so that 400 00:17:46,030 --> 00:17:48,399 if there is something that happens in space, 401 00:17:48,399 --> 00:17:51,536 we can replicate it or simulate it here on earth. 402 00:17:51,536 --> 00:17:54,906 So really being an engineer for NASA is something I thought 403 00:17:54,906 --> 00:17:56,574 about a long time ago. 404 00:17:56,574 --> 00:17:58,977 I didn't know which kind of engineer I wanted to be 405 00:17:58,977 --> 00:18:01,379 but once I started looking at colleges I realized 406 00:18:01,379 --> 00:18:03,948 that mechanical engineering was the way to go 407 00:18:03,948 --> 00:18:05,917 because of all the different opportunities, 408 00:18:05,917 --> 00:18:07,886 the really foundational aspects 409 00:18:07,886 --> 00:18:10,722 of mechanical engineering would allow me to do just 410 00:18:10,722 --> 00:18:16,027 about any other type of engineering. 411 00:18:16,027 --> 00:18:17,996 >> Thank you. 412 00:18:17,996 --> 00:18:22,600 >> Hi, my name is Barney and I was wondering, 413 00:18:22,600 --> 00:18:28,506 what qualifications do you need to be an engineer in NASA? 414 00:18:28,506 --> 00:18:29,908 >> Heather: Excellent question. 415 00:18:29,908 --> 00:18:32,977 Well you first of all have to go to college and study some kind 416 00:18:32,977 --> 00:18:36,347 of a technical degree, typically engineering 417 00:18:36,347 --> 00:18:39,117 and get your Bachelor of Science Degree in engineering 418 00:18:39,117 --> 00:18:40,952 and that can be mechanical, chemical, 419 00:18:40,952 --> 00:18:43,454 electrical, computer, industrial. 420 00:18:43,454 --> 00:18:45,823 I work with so many different types of engineers. 421 00:18:45,823 --> 00:18:49,260 And really realizing that you may not really need to do 422 00:18:49,260 --> 00:18:50,695 that kind of engineering ultimately 423 00:18:50,695 --> 00:18:53,898 because really we have to be able to kind of merge 424 00:18:53,898 --> 00:18:57,335 into other aspects of engineering. 425 00:18:57,335 --> 00:19:00,238 So a minimum I would say is a Bachelor of Science Degree. 426 00:19:00,238 --> 00:19:02,407 Now some of our engineers, like me, choose to go on 427 00:19:02,407 --> 00:19:04,976 and get a Master's but it's not required. 428 00:19:04,976 --> 00:19:08,046 We also like to make sure that you have some work experience 429 00:19:08,046 --> 00:19:10,882 so if you're interested in engineering, start looking 430 00:19:10,882 --> 00:19:13,117 at opportunities for internships, whether it's here 431 00:19:13,117 --> 00:19:15,620 at NASA, which of course I highly recommend, 432 00:19:15,620 --> 00:19:18,389 or with one of our contract partners or one 433 00:19:18,389 --> 00:19:19,591 of our commercial partners. 434 00:19:19,591 --> 00:19:21,826 There's a lot of opportunities out there 435 00:19:21,826 --> 00:19:26,231 to get that work experience. 436 00:19:27,732 --> 00:19:28,900 >> Thank you. 437 00:19:28,900 --> 00:19:31,769 >> Hello, my name is Angelica Santerro. 438 00:19:31,769 --> 00:19:36,808 [phonetic] My question is how does a person sleep in space? 439 00:19:36,808 --> 00:19:38,109 [laughter] 440 00:19:38,109 --> 00:19:39,310 >> Heather: A very important aspect of living in space, 441 00:19:39,310 --> 00:19:41,579 you've got to make sure that you get enough rest. 442 00:19:41,579 --> 00:19:44,315 We have crew quarters where the astronauts basically can kind 443 00:19:44,315 --> 00:19:47,552 of close themselves up in their own little personal space. 444 00:19:47,552 --> 00:19:49,420 And really what they sleep in is something 445 00:19:49,420 --> 00:19:51,089 that looks a lot like a sleeping bag. 446 00:19:51,089 --> 00:19:53,658 They climb into it, they're legs go in. 447 00:19:53,658 --> 00:19:56,027 And one of the more interesting things 448 00:19:56,027 --> 00:19:58,730 that the astronauts have shared with me about sleeping 449 00:19:58,730 --> 00:20:02,333 in space is that they miss that sensation of resting their head 450 00:20:02,333 --> 00:20:06,271 on a pillow so we had to design a head strap that would go 451 00:20:06,271 --> 00:20:09,107 across the astronaut's head to tilt their head back 452 00:20:09,107 --> 00:20:11,576 and then rest on the back of their sleeping bag, 453 00:20:11,576 --> 00:20:14,879 essentially to give them that feeling of sleeping. 454 00:20:14,879 --> 00:20:17,148 And a lot of times our astronauts can choose 455 00:20:17,148 --> 00:20:19,050 or not choose to restrain their arms. 456 00:20:19,050 --> 00:20:20,885 So sometimes if you see astronauts sleeping 457 00:20:20,885 --> 00:20:23,321 in space their arms have risen up and they look a little bit 458 00:20:23,321 --> 00:20:26,257 like a mummy just in time for Halloween. 459 00:20:26,257 --> 00:20:29,027 But I've heard it's very comfortable to sleep in space. 460 00:20:29,027 --> 00:20:31,162 And really we work our astronauts pretty hard 461 00:20:31,162 --> 00:20:33,564 and they do a lot of great work for us so by the time they get 462 00:20:33,564 --> 00:20:36,634 to lay down, or float and sleep, 463 00:20:36,634 --> 00:20:38,670 they're ready to catch a few Z's. 464 00:20:38,670 --> 00:20:47,445 >> Hi, my name is Sophia Marbrin [phonetic] and I'm wondering, 465 00:20:47,445 --> 00:20:51,182 why did you decide to be part of NASA? 466 00:20:51,182 --> 00:20:53,151 >> Heather: Excellent, excellent question. 467 00:20:53,151 --> 00:20:55,753 Well back when I was about your age and I started looking 468 00:20:55,753 --> 00:20:57,455 at the different career options that were 469 00:20:57,455 --> 00:20:59,457 out there, I was so interested. 470 00:20:59,457 --> 00:21:02,026 I was already tied into what NASA was doing 471 00:21:02,026 --> 00:21:05,096 through various things with school. 472 00:21:05,096 --> 00:21:07,732 And I really just decided that to be an astronaut 473 00:21:07,732 --> 00:21:09,834 or even an engineer working in the space program 474 00:21:09,834 --> 00:21:11,669 at NASA was the place to be. 475 00:21:11,669 --> 00:21:13,938 Nowadays there's even more opportunities. 476 00:21:13,938 --> 00:21:16,974 Of course NASA is really at the forefront of working 477 00:21:16,974 --> 00:21:19,310 with our International Space Station and looking 478 00:21:19,310 --> 00:21:22,480 at future technologies but there are a lot of contractor partners 479 00:21:22,480 --> 00:21:25,316 that we work with that offer a similar experience. 480 00:21:25,316 --> 00:21:27,051 We have all of our international partners. 481 00:21:27,051 --> 00:21:30,088 So really the opportunities are even greater for you guys 482 00:21:30,088 --> 00:21:33,491 that are interested in working for the space program. 483 00:21:33,491 --> 00:21:34,892 >> Thanks. 484 00:21:34,892 --> 00:21:39,897 >> Hi, my name is Emily Rotors [phonetic] and I was wondering 485 00:21:39,897 --> 00:21:42,700 if you were working on any new spacesuits? 486 00:21:42,700 --> 00:21:44,569 >> Heather: Hey Emily, well I love that t-shirt 487 00:21:44,569 --> 00:21:46,437 so [inaudible] to you. 488 00:21:46,437 --> 00:21:49,273 Absolutely, we are working on new suits right now 489 00:21:49,273 --> 00:21:52,343 and we're trying to make our new suits kind of multipurpose 490 00:21:52,343 --> 00:21:54,445 because we don't know yet where we're going 491 00:21:54,445 --> 00:21:57,248 but we're really focusing a lot on a suit to work 492 00:21:57,248 --> 00:21:58,750 with our new Orion vehicle. 493 00:21:58,750 --> 00:22:02,220 And it's going to look kind of like the suit that we wore 494 00:22:02,220 --> 00:22:04,689 when our astronauts launched and landed in the space shuttle, 495 00:22:04,689 --> 00:22:07,492 the bright orange, advanced crew escape suit. 496 00:22:07,492 --> 00:22:10,628 We're working on modifications to that to work 497 00:22:10,628 --> 00:22:13,831 with the requirements for our Orion program. 498 00:22:13,831 --> 00:22:18,169 And then we've got our engineers off working on a surface suit 499 00:22:18,169 --> 00:22:21,239 as well, something that's going to be a definite upgrade 500 00:22:21,239 --> 00:22:23,941 from what we used on the moon, much more mobile. 501 00:22:23,941 --> 00:22:26,411 Hopefully lighter weight and hopefully more efficient 502 00:22:26,411 --> 00:22:29,580 with the life support system so maybe we can stay out longer 503 00:22:29,580 --> 00:22:31,716 or wear less weight on our backs. 504 00:22:31,716 --> 00:22:34,986 So stay turned and maybe hopefully you can join our team 505 00:22:34,986 --> 00:22:36,087 as well. 506 00:22:36,087 --> 00:22:38,256 >> Thank you. 507 00:22:38,256 --> 00:22:41,759 >> Hi, I'm Elizabeth LePay [phonetic] 508 00:22:41,759 --> 00:22:46,097 and I was wondering what happens if an astronaut gets sick? 509 00:22:46,097 --> 00:22:47,331 Can they go home early? 510 00:22:47,331 --> 00:22:48,699 >> Heather: A very important thing to think about. 511 00:22:48,699 --> 00:22:52,170 Now our astronauts are trained in a little bit of medicine 512 00:22:52,170 --> 00:22:53,438 so they can kind of help each other 513 00:22:53,438 --> 00:22:55,406 and we have some certain medications up there 514 00:22:55,406 --> 00:22:56,974 if they get a little under the weather. 515 00:22:56,974 --> 00:23:00,144 If it became really serious we'd have to evaluate how 516 00:23:00,144 --> 00:23:01,712 to get them back home. 517 00:23:01,712 --> 00:23:04,048 But really our astronauts are very, very well trained 518 00:23:04,048 --> 00:23:06,184 to take care of themselves in space. 519 00:23:06,184 --> 00:23:09,487 We also have a flight doctor that is here in mission control 520 00:23:09,487 --> 00:23:11,489 that monitors the crew's health and make sure 521 00:23:11,489 --> 00:23:15,159 that they're feeling well enough to stay up there and do the job. 522 00:23:15,159 --> 00:23:17,195 >> If it's really an emergency, 523 00:23:17,195 --> 00:23:20,765 they do have their spacecraft that's always 524 00:23:20,765 --> 00:23:22,934 at the Space Station so they can come home 525 00:23:22,934 --> 00:23:26,170 in an emergency fairly quickly. 526 00:23:26,170 --> 00:23:28,573 >> Heather: Great question. 527 00:23:28,573 --> 00:23:33,444 >> Hi, my name is Madison Ethen [phonetic] and I was wondering, 528 00:23:33,444 --> 00:23:36,447 what have you learned from Voyager 1 now that it's 529 00:23:36,447 --> 00:23:38,049 out of our solar system? 530 00:23:38,049 --> 00:23:40,985 >> Heather: That's an excellent question. 531 00:23:40,985 --> 00:23:43,421 You know I think we're excited to see what we learn 532 00:23:43,421 --> 00:23:46,858 from Voyager 1 and I think it just left not too long ago 533 00:23:46,858 --> 00:23:48,459 so we have a little bit of time to figure 534 00:23:48,459 --> 00:23:51,963 out what we're going to see next. 535 00:23:51,963 --> 00:23:54,732 So hopefully stay tuned to the NASA.gov website 536 00:23:54,732 --> 00:23:56,334 and we'll keep you guys informed. 537 00:23:56,334 --> 00:23:58,402 And the other great program that we're working 538 00:23:58,402 --> 00:24:01,606 on right now is the James Webb Space telescope that is going 539 00:24:01,606 --> 00:24:03,007 to be a huge improvement. 540 00:24:03,007 --> 00:24:06,110 We've got the fantastic Hubble Space telescope up right now. 541 00:24:06,110 --> 00:24:09,780 The James Webb is going to let us see even further out there 542 00:24:09,780 --> 00:24:11,983 to see what's going on so there's a lot 543 00:24:11,983 --> 00:24:13,718 of really exciting things going 544 00:24:13,718 --> 00:24:15,686 on in the space program right now. 545 00:24:15,686 --> 00:24:18,256 I'm so excited you guys prepared these amazing questions 546 00:24:18,256 --> 00:24:21,292 and I really do hope that you stay tuned in and I hope 547 00:24:21,292 --> 00:24:23,794 that you can come and join our team. 548 00:24:23,794 --> 00:24:26,330 >> Yeah we really do appreciate your guys coming 549 00:24:26,330 --> 00:24:28,900 into mission control and joining Heather and myself. 550 00:24:28,900 --> 00:24:31,502 We've had a great time and as she said, 551 00:24:31,502 --> 00:24:32,904 those are great questions. 552 00:24:32,904 --> 00:24:36,774 And as she also alluded to, you kind of can see there are a ton 553 00:24:36,774 --> 00:24:39,844 of different jobs out there in the aerospace business and NASA 554 00:24:39,844 --> 00:24:43,180 and all the contractors so we certainly would love 555 00:24:43,180 --> 00:24:45,616 to have you guys come and join us when you guys get 556 00:24:45,616 --> 00:24:48,753 out of college and we're looking forward to it. 557 00:24:48,753 --> 00:24:49,887 And thanks again for coming 558 00:24:49,887 --> 00:24:51,856 and joining us here in Mission Control.