In March of this year, Mark Vandehei returned to Earth after spending 355 days in outer space. Today, I talk to Mark about what it was like to spend nearly a year in orbit, and how he ended up setting a new record for the longest space flight by an American astronaut.
00:09:01.180It's probably on the order of more than six months, I would think.
00:09:04.900And that's really because every one of those applications gets reviewed by somebody.
00:09:10.620And we've had up to 18,000 applicants in some recent classes.
00:09:15.920And that process gets that number down to about 400 that are considered really highly qualified.
00:09:23.560And then we start checking references.
00:09:25.560And after that, once the references have been checked, we'll pick 120 people or so to actually start coming in for the first round of interviews.
00:09:35.240And then so there's multiple rounds of interviews.
00:09:37.620And I imagine there's like tests involved, too.
00:09:39.860I mean, are they doing like psychological tests to make sure this is your fit for this position?
00:09:44.620There are definitely psychological tests.
00:09:46.700And I'm not sure if this is a good idea, but I admitted during my first interview week that after three hours of filling in the dots, I stopped.
00:09:54.240And so at first, every dot I filled in, I thought, what are they going to think about me when I put this in there?
00:10:00.080And I was really putting a lot of thought into everything.
00:10:03.300And then after three hours of that, I just didn't care.
00:10:05.880I just wanted to finish the darn thing.
00:10:07.820So I told them that they had definitely gotten the real me at some point because I just was exhausted by the process.
00:11:54.260I would say I have been pretty fluent in Russian, but it's a surprisingly perishable skill.
00:12:00.580I think the most fluent I was in Russian was on the day I launched for my first flight because I had spent so much time in Russia learning how to be a co-pilot for a Russian spacecraft.
00:12:17.440I mean, I was fluent enough to be able to talk on the radio very publicly to make reports about their spacecraft in Russian and understand what they were saying.
00:12:26.560So in some regards, yes, but there's so much further to go.
00:12:30.040There's certainly topics, many, many topics I could get into where I would be very clueless about how to communicate.
00:12:35.480So we've had another astronaut on the podcast and he mentioned part of the training was like wilderness survival training.
00:13:22.820The EVA training, the spacewalk training is very physically demanding, but it's also very mentally demanding.
00:13:29.280So it's a combination of being in good enough shape to have enough mental capacity left over to do the right things in an environment where you really do not want to mess that up.
00:13:40.680And then the Russian is just so humbling.
00:13:43.640And it's one of those things where I think if you're a person who really likes to know that you've got a grasp on this and this is going to work out, it's just something about language just feels like it's shocking that it works.
00:13:59.520But you don't, it's either there or it's not.
00:14:29.020I, I, I would look, honestly, I would look at the CrossFit website.
00:14:31.980I'm not trying to condone any products, but they had a variety of workouts and I would pick one of their workouts and I would go for it.
00:14:37.840And I did recognize at my age, if I tried to do the prescribed workouts that I would hurt myself.
00:14:43.760So I recognized that if I hit muscle failure five times, it was time to stop that exercise and I, or drop the weight to half of what I was doing, something like that.
00:14:51.260So I had, I certainly had a learning process with how to survive those workouts.
00:14:54.560Does NASA just have astronauts prepare physically on their own or do they set out like, here, here's some, a suggested workout plan or this is kind of like, well, it's up to you.
00:15:03.900It sounds like you just did whatever you wanted to do.
00:15:06.940And there's a wide variety of enthusiasm about exercise in the astronaut office.
00:15:10.660And certainly people tend to be much more on the fit side, but some people like to work out in the, in the facilities we have here on Johnson Space Center.
00:15:22.000Other people like to do it at home or in a different facility.
00:15:25.620The nice thing is you've got a lot of resources here to help you out.
00:15:28.800So we've got some strength and conditioning and rehab specialists that are fantastic coaches.
00:15:33.760In fact, one of the things I've been working on is snatches lately and the strength coach that helps me out.
00:15:55.060It means advanced resistive exercise device.
00:15:57.120It's a very large device we use for the closest we can get to weightlifting because the weightlifting doesn't really make sense in space.
00:16:05.580So the way it works, the way I like to describe it is imagine that you have a seesaw and there's a kid on the other side that's pulling up on their end of the seesaw.
00:16:15.720And you want to pull up on your end of the seesaw.
00:16:17.500And that kid always applies the same amount of force.
00:16:19.980So if you put the fulcrum right in the middle, you're going to pull on to lift, to change the position of that seesaw, you're going to have to exert a little more force than the kid on the other side of the seesaw.
00:16:33.180You can change the pivot point between you and that kid.
00:16:37.220And then you can make it a very small amount of force to a very large amount of force based on what mechanical advantage or disadvantage you give yourself.
00:16:45.700So hopefully that helps you visualize what I'm talking about.
00:16:48.000But the way it works is we have that lever arm with a pivot point that's adjustable and allows us to change the force from 20 pounds to 600 pounds.
00:16:58.900And that quote unquote kid on the other side of the seesaw is a couple of vacuum cylinders.
00:17:06.260So when you pull up on the bar or the cable that you're pulling up on, you are forcing a couple of plates that are being pushed on by the air pressure in the space station.
00:17:33.900Although we tried doing things like thrusters where you use the cable and you put the bar on your shoulders and go from a deep squat into a standing position with the bar over your head.
00:17:46.300But having that cable run across your chest and across your face makes it not quite the right positioning.
00:17:52.660So I actually didn't like doing that in the long term.
00:17:54.340And then another thing, I tried doing kettlebell swings, but using the cable, but you don't have momentum like you would.
00:18:02.000That's one thing we really don't have.
00:18:03.320So in a kettlebell swing, that momentum that you generate with your hips and your legs prevents you from, ideally prevents you from having to use your shoulders as much.
00:18:12.660But it started feeling like it was just a front raise for me when I was trying to do a kettlebell swing.
00:18:28.500And that's interesting in space because if you just ran on a treadmill, as soon as you pushed off with your foot, you would depart the treadmill.
00:32:22.300In some way, I was training for that space flight.
00:32:24.640But I was the only rookie on that space flight.
00:32:27.480And so, every little mistake I made, I would beat myself up about it.
00:32:31.720And every time, I kind of had a little bit of a chip on my shoulder.
00:32:34.560Every time someone felt like they needed to spend a little bit extra time hovering over me, watching what I was doing,
00:32:41.380I felt like they were just expressing a lack of confidence in me,
00:32:45.140which, quite honestly, I didn't like because I had a little bit of a lack of confidence in myself.
00:32:49.160I was shocked at how many things I could mess up after all that training because there's still a big adjustment to that zero-G environment.
00:32:56.840So, the second flight, I just had gotten better about paying attention to my own mental processes
00:33:07.440and could better recognize that there was a narrative that I was given myself that wasn't necessarily true.
00:33:16.420And I think I was probably much more pleasant to be around.
00:33:19.600And I enjoyed my existence up there a lot better.
00:33:22.280So, I'm not so sure space takes any bigger psychological toll or puts a bigger psychological stress on anybody that we…
00:34:22.200So, I mean, even though you're in the vastness of outer space when you're up there in the space station, you spend nearly every waking minute in a confined physical quarter.
00:34:31.220I mean, how big, how many square feet is the space station?
00:34:35.980The best way for me to describe it is it's got the internal volume of a six-bedroom house and it's gotten bigger recently.
00:34:43.580We added a couple extra modules while I was on orbit.
00:34:49.540That was one of the most shocking things for me.
00:34:51.060Even though we've got really good mock-ups of the internal volume of the space station, in the United States, we have the U.S. part really well mocked up and not so well mocked up to the Russian part.
00:35:02.800And the Russian part has pretty lengthy modules that go towards the Earth or away from the Earth.
00:35:08.620And those aren't oriented that way on the ground because it just doesn't work for us to train in.
00:35:12.980So, it was shocking to me how much it kind of, I don't know if this is something that most of your, I don't even know if the people still make these, but I had a hamster as a kid and a habit trail.
00:35:21.620And it reminded me a lot of a habit trail because there's tunnels that go in all kinds of directions.
00:35:31.580It is small, but you don't need much space.
00:35:33.740So, to give you an idea, if I put my back against the wall where my sleeping bag was and stuck my arm out straight in front of me, I could just about touch the far wall.
00:35:42.620And then I did not have enough space to put my arm.
00:35:46.040It was about the same width, shoulder to shoulder.
00:35:50.100Probably, if I stuck, I think if I put my elbows out in both directions, I might have been able to hit the sidewalls.
00:36:39.380The medicine I used worked really well to help me out with that.
00:36:42.660So, one of the things we do when we land, or at least I did when we landed, is a field test because we're trying to understand how when we launch people to other planetary objects that are really far away that will involve an extended space flight to get there.
00:36:58.000So, I did a field test within an hour of landing, and before I got any medical interventions like an IV to help rehydrate me, just to see what I could do.
00:37:08.960It was very much like a sobriety test.
00:37:11.880And I probably, of course, I wasn't drinking any alcohol, but space flight probably would have prevented me from passing the test.
00:37:18.960And how long did it take for you to feel like, I got my earth legs back?
00:37:24.880Did it take a while, or was it pretty instantaneous?
00:37:28.400It took, well, it's a gradual process.
00:37:33.520The first time, I can kind of give you a milestone.
00:37:35.660So, I was able to walk around without assistance within that first hour.
00:37:40.640If I had to close my eyes and walk toe, heel, toe, heel, I had no idea which way I was up.
00:37:47.220Eight hours later, it was getting more comfortable.
00:37:50.020Eight hours after that, I was able to feel very celebratory.
00:37:53.220So, 16 hours, 20 hours after I landed, I was back in Houston already, and I was very comfortable walking down the steps and throwing my arms in the air and feeling really excited about being able to see everybody.
00:38:04.400I couldn't drive probably for 10 days because there's concerns that if you turn your head really quickly, that you might get the spins, and that would be very bad if you're driving a car by yourself.
00:38:14.260So, we had to wait a little while for that to go away.
00:38:16.960The biggest thing for me that I noticed was if I was in one position, say, prone for an extended period and then stood up quickly, I felt lightheaded, very lightheaded when I would change orientations.
00:38:30.060And that pitch just did probably for two or three weeks.
00:38:36.140The only thing I'm not doing yet that I'm looking forward to doing is running.
00:38:40.840The doctors told me not to run for the first month, and I thought, come on, this is kind of silly.
00:38:45.920So, I literally went running for 10 minutes, or walked for 10 minutes, ran for a minute, walked for two minutes, ran for a minute, did that cycle four times, and then walked for 10 minutes.
00:38:56.300But in just that four minutes of running spread over a half an hour, I managed to step off a curb and my knee started swelling up.
00:39:35.940I certainly understand what you're talking about, where if you spend so much time trying to get ready for something, and your whole life is focused on that one thing, and then when it's done, you realize, wait, I don't have a plan for this next period.
00:40:58.360So, there's a lot of really important life events that you can't do because you've turned over your schedule for your life to the federal government.
00:41:06.900And when things change, you just got to change with it.
00:41:09.360So, as far as my career, I'm definitely planning on continuing my career at NASA for a bit.
00:41:58.740And then after that, I'm very interested in the sustainability of the Earth.
00:42:04.240I, as one of the few people that I've gotten to look at the Earth from outside the atmosphere, really have a sense of how thin that atmosphere looks relative to the scale of the Earth.
00:42:14.460I don't think most of us realize that we're not really separate from space.
00:42:19.080When you're on the Earth, all of us, when we step outside, the only thing that's separating you from the vacuum of space is what I like to call a puddle of air molecules.
00:42:28.440That if you go to Colorado, you can actually feel that you're starting to climb out of it.
00:42:34.540You go up to Mount Everest, and you're in a thin enough part of that atmosphere that it's not survivable for extended periods of time.
00:42:43.360So, it's a very, very thin layer, and that's the thin layer that we live in.
00:42:48.200That's the only part that humans live in.
00:42:50.680The Earth is so huge, but this atmosphere just feels like it is small to me, and it's a very precious resource.
00:42:57.820So, I'd like to be smarter about how the way we consume things, just how we live our daily existence, to understand what the impacts of that are, and maybe at some point help educate people about what I've learned associated with that.
00:43:14.980I certainly am enthusiastic about being outdoors.
00:43:18.540I've always been enthusiastic about being outdoors, but being stuck indoors for such a long time has certainly reinvigorated that enthusiasm.
00:43:25.780So, self-associate with the outdoors, I'm excited about as well.
00:43:31.180Well, Mark Vandeheye, this has been a great conversation.
00:43:48.900Well, that wraps up another edition of the AOM Podcast.
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