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liftoff in five four three two one zero

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when you think about an astronaut what

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comes to mind spacewalking maybe that

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iconic image of them all suited up in

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the Astro van on the ride out to the

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launch pad or those historic videos of

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them walking on the moon what you

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probably don't think about is a swimming

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pool but believe it or not that's our

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final stop on this virtual tour hi i'm

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rachel power and today we're gonna take

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a look at astronaut training for living

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and working on the International Space

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Station we're here in Mission Control at

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the Johnson Space Center this is where

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much of the communication takes place

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with astronauts after they've left Earth

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and until they return home and that

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includes when they're on the space

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station as the Commercial Crew program

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nears its primary objective launching

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humans safely to the space station more

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and more focus is being placed I'm

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making sure those astronauts are ready

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to fly we've got a lot to see today are

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you ready let's go just like a swimming

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pool isn't what you typically think

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about when you think astronaut you

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probably also don't think about a

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classroom but after the application and

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selection process these women and men

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they're not automatically given the

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title vas or not they have to earn it

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so the astronaut candidates as we call

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them have to go through about two years

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of training before they can be eligible

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for assignment two our mission that

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training includes what we call

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expeditionary behavior the things it

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takes to be a good teammate like

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communication leadership skills and

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followership skills all US astronauts

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must be proficient in Russian they're

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gonna learn survival skills they have to

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be able to make split-second decisions

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in life or death situations and that's

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why they learn how to fly 238 jets

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they'll also have to learn how to

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conduct spacewalks they'll have to

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conduct research projects they're going

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to control the space station robotic arm

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and they have to operate the many

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technical systems on the space station

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so as you might have guessed its

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candidates they don't just learn in this

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classroom

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there's lots of hands-on training as

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well so let's go take a look we are now

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inside building 9 at the Johnson Space

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Center where astronaut training is a

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major focus behind me you can see

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full-scale mock-ups of the International

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Space Station in fact over here to my

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left you see one of the last existing

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Space Shuttle trainers and peeking up

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over the top of it on the other side you

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can see the very big robotic arm behind

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me is Leonardo or the PMM and it's used

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for cargo and storage right down here to

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my right you can see the top of the

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cupola that's one of the favorite

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hangout spots on the International Space

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Station it gets you a beautiful view of

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Earth below and in the forward section

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of the station you can see the smaller

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robotic arm attached to the outside of

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the Japanese module but we're gonna get

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to go inside node to Harmony and take a

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closer look welcome to node 2 or Harmony

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here you'll find the astronaut sleeping

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quarters the crew workbench and if you

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look behind me you can see into Destiny

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the u.s. laboratory to your left you're

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looking into the European module

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Columbus which focuses on the human

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research program and to your right you

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can see into gen the Japanese module

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where there's an airlock to pass large

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experiments outside into the vacuum of

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space don't forget to look above you and

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also behind you where you're gonna find

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two airlocks these will be used for

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docking the new Commercial Crew program

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spacecraft and astronauts time and space

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is very limited and extremely valuable

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so mock-ups like these allow them plenty

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of time to learn where to find the tools

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they're gonna need to be successful on

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their mission it also allows them to

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simulate and rehearse emergency

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situations they need to know what to do

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and where to go to be safe just like you

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practice safety drills at school so

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tools like this are invaluable while

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they're working inside the station but

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what if their work takes them outside

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the station well we have just the tool

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for that too as promised this is our

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final stop

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take a look over here yes add this most

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basic level this is a swimming pool but

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we call it the neutral buoyancy

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laboratory or NBL for short in a moment

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you're gonna find out why now I'm not

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gonna go with you for this next part but

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you are gonna take a dip in the pool

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have fun right now you're witnessing

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astronaut training in progress the

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person in the giant white suit is well

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you guessed it an astronaut we've

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discovered that being underwater is a

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great way to simulate working in space

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the movements in both locations are slow

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going and methodical you have the

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ability to move in any direction and

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you're able to practice doing full

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operations in real space suits the suits

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they wear during spacewalks weigh around

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300 pounds so practicing with them

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outside the pool is pretty much out of

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the question

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underwater those suits have to be

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airtight to prevent the water from

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flooding inside and space a similar

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hazard exists just like water takes the

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shape of its container gas does the same

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and spreads to fill all the space

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available so the gas in the spacesuit

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needs to stay inside for the astronaut

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to breathe so it has to be airtight

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you'll also notice that the astronaut is

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not alone for safety and support a team

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of divers assists each astronaut with

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relocations safety concerns in

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documenting their work those giant

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structures you see there are full-size

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replicas of the space station since any

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station astronaut could be called on to

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fix something on the outside they all

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practice here underwater many times to

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be ready for the real thing

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welcome back since you've had a chance

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to see how massive those structures are

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you now know why we need to pull this

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big the NBL is one of the largest indoor

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pools in the

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world it measures about 200 feet long by

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a hundred feet wide and 40 feet deep

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through the use of VR technology there's

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one thing you didn't have to worry about

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on your dodge air even though you can't

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see it every breath you take is a

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reminder that you're constantly relying

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on it and it's one of the reasons why we

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train in a pool it's just like in space

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if you go underwater without oxygen you

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can't survive long in space astronauts

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need to wear a pressurized spacesuit in

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order to survive outside of a spacecraft

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one way to think of it is like flying in

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an airplane a plane is pressurized just

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like a spacesuit so as you fly higher

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and higher you have all the oxygen you

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need to survive take a moment to look

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around you over there are the cranes

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that help astronauts get suited up and

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into and out of the pool up above is the

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control room where all operations on top

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of and under the water are managed and

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monitored that's right there are

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training exercises on top of the water -

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one of those is a simulated water

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landing where crews practice getting

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astronauts out of the capsule safely

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well what we've covered here today in

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just a few minutes it takes these

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brilliant women and men years to master

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but they're committed to continuing the

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quest of pioneering beyond Earth that's

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it for today but we'll see you next time

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as we prepare to launch America hi my

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name is Steve stitch I'm the deputy

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program manager for Commercial Crew