I'm Chinese-American, of course, and so it's very interesting to see China actually launch their own astronauts, becoming the third nation, following the United States and Russia, to do so.
Leroy ChiaoIn 2006, I became the fist American to be allowed to go visit their astronaut center in China in Beijing. I think that it makes sense for the U.S. to work with China in the future and I hope to see, if the political atmosphere between the United States and China allow for us to do more cooperation together, especially in the area of human space flight. I think in the same way that it's help improve the relations between the U.S. and Russia; it would help to improve the relations between the U.S. and China.
Leroy ChiaoIn a big picture sense, it's more national prestige that we're risking. You know, we are proud of our space program, but as we were talking earlier, the average American doesn't think that much about it right now. So, it may seem like something we could just give up and not really worry about it, but I think it starts creeping into the national psyche. If American astronauts have to hitch rides with the Russians or other nations in the future.
Leroy ChiaoAs far as Russia goes, they've been our partner for a long time now, since the early '90's. So you know, what's that, that's more than 15 years. And there have been times where things were a little tense, a little testy, but by and large, the partnership has been very successful. To give you two examples of that, when the Columbia accident occurred, the Russians supported us with their spacecraft faring our astronauts, including me, to the space station and also supplies.
Leroy ChiaoOn the mission I brought a flag from China, I brought the stone sculpture from Hong Kong, and I brought a scroll from Taiwan. And what I wanted to do is, because as I was going up and I am this Chinese-American, I wanted to represent Chinese people from the major population centers around the world where there are a lot of Chinese people. And so, I wanted to bring something from each of those places and so it really wasn't a political thing and I hope people saw it that way. I was born here, I was raised in the U.S., and I'm an American first, but also very proud of my heritage.
Leroy ChiaoThe thing that you worry about your first flight or any flight is some kind of a problem coming up that is going to keep you from doing it. Whether it's being hit by a car, or getting in a bad accident, or coming down with some other medical disqualification. But once the boosters light, you're going.
Leroy ChiaoI would say keep supporting space flight, keep telling the public and the politicians why it's important to advance science and explore the galaxy. I encourage the Japanese to keep doing what they're doing.
Leroy ChiaoQian Xuesen, the father of the Chinese Space Program, studied in the United States, and he was a protรฉgรฉ of Theodore Von Carmen's at Cal Tech and helped start the jet propulsion laboratory there, and then he got caught up in the anti-communism wave and was accused of being a spy and was actually deported back to China where he built from nothing, their entire missile and space program. So, in a way, in a very real way, the United States in trying to protect so-called protect our secrets and throwing this guy out of the country, we helped seed and start the Chinese missile program.
Leroy ChiaoWe have self-assessment tools, computer-based tools to see how we are performing mentally in outer space and there's some also very interesting technology and work that's being funded by NRSBI to look at facial recognition to look at your patterns to see if you're experiencing stress or fatigue. It's a kind of thing that I think will gain acceptance with gradually. But it probably has more to immediate application in things like homeland security, and looking at facial recognition of people going through airports and things like that to see who's under stress.
Leroy ChiaoAs commander I was responsible for the overall success of the mission, and so I had to know at least a little bit about everything.
Leroy ChiaoMy mistakes made were learning how to work with different groups of people. I mean, I went to school at Berkeley, which is a pretty diverse group, but working in a professional setting, I hadn't really done that before and learning about office politics, learning about interactions between different people and I made a lot of mistakes there during my time as a young person. I was 19 or 20 at the time. So, I would say those were my biggest career mistakes, but fortunately they were made in the context of an engineering co-op program and not in a professional field.
Leroy ChiaoRockets have remained fundamentally unchanged, except for a few exceptions for the last almost 50 years. So, for there to be a fundamental shift in rocketry and getting into space, there almost has to be a breakthrough in propulsion. Either in how to bring the price down, or how to more efficiently get people up into space and the key barrier is the expense of a rocket.
Leroy ChiaoWhere we're operating is orbital adventures. We would offer five to seven days in low Earth orbit aboard our own spacecraft where customers would have the view of the Earth; get to experience really living in space, probably conducting some scientific investigations that we would piggyback onto those flights. So, they would have the whole experience, kind of a mini-experience of what professional astronauts have.
Leroy ChiaoThe expense of getting into space is the rocket launch, the rocket itself. Rocket's right now, commercial rockets cost probably somewhere between $50, or $120, or $150 million per launch. And those are all expendable. That is, you've got to buy a new rocket for each launch. So, that really is the critical part. If there was some kind of really, a revolutionary breakthrough and the price of rockets fell by an order of magnitude, I mean, just imagine what that would do as far as getting access to more ordinary people.
Leroy ChiaoWe were doing something called telemedicine, where we were using the ultrasound. One interesting application of this ultrasound is the possibility that you could possibly use it to measure critical bone areas during a long space mission and track if you're losing bone in these areas. On Earth, when they check you for bone loss, you get in this big machine. It's the size of a room and it's got a platform with an x-ray that scans your whole body and in critical areas and it takes a while and it just wouldn't be practical to have a machine like that in space.
Leroy ChiaoI was born in the United States, I'm proud to be an American, I'm an American first. But obviously, I'm a Chinese-American. And growing up, my family, my parents, and I think rightly so didn't put us in Chinatown, didn't put us with our other ethnic group, but put us in mainstream America. They're thinking was that will help us assimilate into the mainstream and be a part of it. And it did. It certainly gave me tolerance of other people, of other races, of other ethnicities and I think that's helped make me a better person.
Leroy ChiaoOne of my challenges was to try to photograph the Great Wall of China. And I did actually take some photos, but it was hard to discern the wall with the naked eye.
Leroy ChiaoThe most important thing about an astronaut is you have to take for a given a person's done pretty well in school, has the intelligence and all of that to learn new systems and new things. But after that, the most important thing I think is being able to get along with others. Flexibility and teamwork, those issues because as we fly longer and longer in space, those are really important factors, even on short shuttle missions, those are important factors, to put a crew together that can work together effectively as a team, that can get along.
Leroy ChiaoI was an eight-year-old kid when I watched the first Apollo Moon Landing way back in 1969 and there was something about that moment that really stuck in my head. I'd always been interested in space and flying and I was building model rockets and model airplanes, but something about that moment, I can remember like it was yesterday watching the Apollo Lunar Lander approach the surface of the Moon and then later watching Neil Armstrong and Buzz Aldrin take the first steps on the Moon, and something that day started the dream for me that, hey, I want to be like those guys.
Leroy ChiaoCooperating in something as visible as space exploration and space flight can only improve relations between the two countries because what happens is, you're working on a common project in a very visible light and so, you're motivated to not have conflicts with each other in other areas. And bringing up China is a good example. In the early '90's, China got serious about wanting to launch astronauts into space and they were actually quite successful in launching many communication satellites. They went ahead and in 2003 they launched their first astronaut into space.
Leroy ChiaoOne of the biggest concerns about going out beyond lower Earth orbit is the radiation. We find that exercise seems to counteract a lot of the negative effects of space flight, like bone loss and muscle atrophy and cardiovascular systems issues. We exercise two hours a day on the station, which is a huge hit out of your day. It's great for staying in shape, but you know, it cuts into the productivity of the crew and if you look at how expensive it is to get a crew into space, if we can keep them healthy and have them exercise, but spend less time doing it, we can get more done.
Leroy ChiaoThe neatest thing about research and science is we don't necessarily know what's going to come down the pike. We think we know what we're working on. Oftentimes, discoveries are made when you're trying to discover something else. You end up accidentally discovering a different thing. So, one of those things might happen that enable us to have more efficient rockets.
Leroy ChiaoOf course, you'll have to meet the physical and psychological demands. A space walk takes a lot of energy.
Leroy ChiaoI actually had four space flights altogether, three times on shuttles. My second flight was really unique for me because I was going back into space, first of all. The first one was like an appetizer at a nice dinner. You know, you want to go up and you want more. So, the second time I got into space, it was neat because I got to actually do two space walks.
Leroy ChiaoI grew up bilingual, I grew up speaking Chinese in the home, Mandarin Chinese with my parents, and I learned English because I was born and raised in the U.S. That really gave me an edge. I understand that, from the experts, if you grew up bilingual, your brain kind of gets wired to accept a new language. It was a very serious deal because not only did I have to learn Russian to a high degree in order to function as a necessary member of the crew, but also I knew that the Russians that came over that made an effort and had some success in learning English, those were the folks we trusted.
Leroy ChiaoIf we're not able to launch our own people and operate our own spacecraft anymore then, you know, space - whether it should be or not, it's seen as like a harbinger of technology. If you can fly people into space, if you can operate into space, then you've got high technology and if you're the leader of that, then you're the leader in technology. If we lose that on a more or less permanent basis, or for a long period of time, my fear is that it will creep into the national psyche in all areas and we as a nation as a whole will kind of be diminished.
Leroy ChiaoThe Russians have been flying long duration crews since the early '70's. And in the early days, they've ended at least two missions early because of conflicts within the crew. So, they learned early on the importance of studying this and making sure you put the right crew together. Since we began our work together on the International Space station with the Russians in the early 2000's, NASA has started to learn the importance of this kind of work. And so, I think it's important work and we are not fully onboard and recognize it as important.
Leroy ChiaoThe ultrasound that has application not only in space for a long mission or for a mission to the Moon or Mars, but also in remote areas on the Earth. Not even just - I'm not even talking about expeditions like to the Antarctic, but just a remote area, a small town somewhere. The local doctor is not going to know everything, and so if that person can link in with a diagnostic ultrasound to the hospital in New York City through the internet, then they can do a very quick diagnosis of something that's wrong with someone that's in this remote area.
Leroy ChiaoThis was the first time we had two ex-Soviet Cosmonauts in Houston. A lot of us, including me, viewed it with some skepticism, because I grew up during the Cold War, so I had been hit with all this propaganda all along that their stuff wasn't that good, it wasn't that safe and we were so much better. What I found out later was that their space stuff was very good and good enough that I was certainly comfortable flying on their equipment. So, it was kind of a revelation of sorts as the years went by and I think it underscores the importance right now of international cooperation.
Leroy ChiaoThe Americans are still the leaders in human space flight. I feel we have a danger here of kind of stagnating. We're kind of resting on our laurels and there's a danger going forward if we don't take bold steps to really support human space flight in this country that we could fall behind. After the space shuttle is retired, we're going to have a big gap, five to seven years, at least where we're not going to have the ability to send our own astronauts into space, we'll have to buy rides on the Russian Soyuz, and so that will be a pretty big step down for us.
Leroy ChiaoWhen Russians were having troubles, the Space Shuttle supported the Space Station Mir bringing up much needed supplies and replacements, critical spares, really. That they were able to keep their space station going for much longer than they would have without us. So, I think that shows the value of international cooperation.
Leroy ChiaoI remember getting advice like, "Oh, do what interests you. Don't worry about tomorrow, live for today," kind of thing. And to a degree, you've got to do that, you've got to follow your passions. You've got to follow your dreams, but you also have to have a plan. You can't just say I'm going to do what interests me today and I'm not going to worry about tomorrow, that doesn't work. And anyone who's tried that I think quickly finds that out. Think about what turns you on, what do you dream about? But along with that, make a plan and work hard to make it happen.
Leroy ChiaoThe United States, Russia, and China are the only three countries in the world that can launch astronauts into space. Mostly in the U.S. you see some companies trying to launch private commercial people into space, but nobody's done it yet. The only private vehicle that's made it into space so far is Spaceship 1 in 2004, and that was an effort that was funded by one of the Microsoft founders, and he spent about $20 million to develop this spacecraft to do a sub-orbital flight. And it's not the same as going into orbit, but it was a huge first step.
Leroy ChiaoI attended a big human space flight conference in Beijing and I was going as myself. And really, there weren't any NASA astronauts there, I was the only so-called American Astronaut there. We had astronauts from most of the other countries, certainly from Russia, from France, from Japan, several other countries, but it was a little bit odd because here we are at an international gathering of a lot of astronauts and I'm talking about somewhere upwards of 30 or so astronauts, and I'm the only American. And I wasn't even there in an official capacity.
Leroy ChiaoBecause we didn't cooperate with China, we gave them motivation to develop their own capability. You know, they developed a very capable rocket system, very capable spacecraft. And if we don't cooperate with them in the future, they're going to develop more capable systems. If we're working together on a highly visible project, there is going to be much less, or there is going to be motivation for each country to not get into a conflict or any kind of tension in the military sense.
Leroy ChiaoThe only two countries who will be able to launch people into space will be Russia and China. I've seen the Russian technology up close and I've had a chance to look at some of the Chinese technology. It's a very high level. They have good hardware and what China lacks is operational experience. But as they gain more experience, as they fly more missions, they'll catch up quickly. The U.S. does face the possibility of losing the lead in human space flight during this period of what we call the gap.
Leroy ChiaoIt was in the back of my mind, even while I was going to school, but it wasn't until I was at university studying engineering that I thought, well what do I really want to do? And I kind of came back to that and I said, well the degrees I'm trying to get are going to qualify me to apply. And so, that's what I did after I finished my, or after I was getting my doctorates. That's when I first applied to NASA.
Leroy ChiaoWe were trying to do as much science as we could because that was the main purpose of the international space station. But without the shuttle to bring up heavy laboratory equipment and bring back samples, we were limited by what we could do, but I was proud that we actually accomplished more science that was planned for the flight. And I got a chance to do two Russian spacewalks on that flight, I had become an expert in U.S. spacewalks and using U.S. suits and techniques, and this was a chance to put on a Russian Orlan suit and do two construction space flights outside of the space station.
Leroy ChiaoComing down under a parachute is quite different as well. You hit the ground pretty hard, but all the systems work very well to keep it from hurting, so it doesn't even hurt when you hit. It was a great experience to be able to do both.
Leroy ChiaoYou saw Britain back in the early days of sailing ships. They were the sea power, the controlled the seas and they had colonies all over the world and then you can look at history and watch the way that their empire kind of crumbled. I certainly don't want that to happen to the United States in space technology.
Leroy ChiaoIf you think about the energy that a rocket engine has to put out and all the fuel and you're sitting on top of like a bomb. And on the Space Shuttle, that big orange tank is filled with liquid hydrogen and liquid oxygen, the white cell rocket boosters on the sides are filled with solid propellant. There's a lot of energy in all those chemicals there and you've got to control it in a way so it doesn't explode. So, there's a lot of plumbing, a lot of valving, a lot of control systems, and it's a very complicated thing. So, how do you bring the price of that down?
Leroy ChiaoThe Russians right now require a customer coming in and spending about six months or so in Russia and they have to learn some Russian. They have to learn some critical words so they can, in an emergency, at least have minimum communication with the Russian commander of the Soyuz. They also have to learn systems and I think this just evolved that way. They just thought, what is the minimum set of things we think we can train someone to be more or less competent in our systems? And so that's what these guys go through. So, it's not just like buying a ticket and getting on an airliner.
Leroy ChiaoTwo years ago, China tested an anti-satellite weapon that actually caused quite a bit of controversy and one of the controversies is that by blowing up a satellite, you are creating more space debris which is a hazard to satellites and spacecraft in lower Earth orbit and if they had been a partner, you'd have to do an experiment, and if they had been a partner in the international space station, would they have really done that test? They would have really thought twice about creating that tension between the countries and potentially endangering a project that they were a part of.
Leroy ChiaoMy running ambition is to keep doing it until I'm way past the point where I have any business running. Just to keep doing it throughout my whole lifeโto stay fit and feel good.
Leroy Chiao