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while the expedition 40 station crew

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continues it's a busy day some 260

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statute miles above earth another crew

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of astronauts took space exploration

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below the sea the nemo 18 crew

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japanese astronaut aki hoshide who is

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serving as the nemo 18 commander and is

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his uh crew nasa astronauts jeanette

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epps and mark vande high and

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european space agency astronaut thomas

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pesquet

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who are now at submerged underwater for

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their third day of its nine-day

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underwater mission at the aquarius

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habitat that is serving as a test bed

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for new space tools as well as training

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grounds for the astronauts getting

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first-hand experience and knowledge

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working and living in an extreme

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environment in preparation for space

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flight this morning i had a chance to go

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undersea and talk with one of its crew

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members of a nemo 18 aquanaut and nasa

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astronaut janette epps to ask her how

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it's going

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it's actually going really well

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and now this week um we're in mission

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day three

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of the um

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of the mission and yesterday i did eva

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with aki and we had a few problems with

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comms but everything seemed to work out

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in the end we got a lot of good data

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and we came back into the habitat

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experience and so today we have tama and

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market mark outside and um they're in

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the melvin eva right now that sounds

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great so eva so basically you did a

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scuba walk to simulate a space walk what

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that would be like and i know i

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understand you went out yesterday with

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aki hoshide and you guys were working on

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doing some drill

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core samples is that correct

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that is exactly right and um thanks for

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explaining these and so yesterday we

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went out and we were

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pretending that we were excavating or

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exploiting an asteroid so we had a

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drill with a core on it so that we can

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take core samples from a mock asteroid

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and we also had cutting tools so that we

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can um basically take samples from

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the asteroid as well

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so you're going underwater for nine days

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um can you explain to me how do you feel

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being submerged for nine days underwater

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at that habitat and doing things like

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you did yesterday the scuba walk to

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simulate the spacewalk how is that

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preparing you to get ready for a space

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flight well so i haven't flown but i can

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um you know in talking with aki our

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commander

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some of the things that we experience

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here for example um we're

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in saturation so that means that we

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can't just ascend to the surface anytime

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we want and that means we have too much

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nitrogen in our blood so we have to

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basically

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so

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even go back home is one way that it's

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um simulating space but also there's six

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people here and on the space station at

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a given time you have maximum six people

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right now

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and so that's another way and then you

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know we have to have things delivered to

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us as if we had a a logistics vehicle

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that would deliver stuff we have divers

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bringing things down from the surface

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and um bring them to us so there's a lot

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of similarities also our timeline is

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such that it's very similar to what we

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would have on a space station and i'm

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comparing this to what um aki our

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commander has told us and it's very fast

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pace there's a lot going on all the time

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and um

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you're really doing a lot of great

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things especially some of the experience

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that we're doing the um evas the mock

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spacewalks that we're doing to simulate

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going to an asteroid

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so all the things that we're doing

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everything is an experiment to further

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one other thing i'm hearing just a

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couple of breaks as we're talking and so

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it just leads me to think about

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another activity i think you guys are

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working on is uh how to deal with

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communication delays can you tell me how

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you guys are simulating that

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yes so um over the next few days we

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haven't started yet but in the next few

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days we're going to start having a calm

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delay with with the um topside so what

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we're simulating is if you go on a

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mission to mars it's going to take a

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little time for that signal to get back

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to earth

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so how do we cope with that um it seems

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like a simple

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and

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um interesting when you have a 30-second

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and then when you send a message back it

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takes another third

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so um that time delay in many situations

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where we're either performing some kind

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of procedure

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um

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building some kind of piece of equipment

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you know if we're running procedures and

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different things like that or even an

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emergency how do we cope with

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um having a time delay like that and so

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developing the the methodology to do

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that will help us once we go to mars or

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even beyond mars so

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developing a protocol for communications

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is very important because um

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you can have

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frustrations you can it can even lead to

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miscommunication

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which we want to avoid so developing a

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protocol is um

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a good priority for us right now what

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other activities are you guys working on

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i understand there's some human body

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studies so what are you doing to do yes

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so we're looking at several different

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things so we're wearing these on badges

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i don't have my badge on now but um

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there's several different badges that

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look at team adhesion and cohesion and

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how we interact with each other

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and so i'm very fortunate because i've

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got a good group of guys and so

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it's an easy experiment for us but it

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looks at proximity to each other it

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looks at our heart rate it looks at um

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there's other studies that look at the

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um hormones that we produce when we're

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in a attention uh

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from

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experiments where we're playing sort of

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a game and it looks at our hormones

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before and after there's another study

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that looks at how our inner ear

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stability is affected

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um so we there's several other um

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techniques we're looking at

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where certain types of um

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monitor

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so we're looking at many different ways

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for our health and human performance as

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well so all of it seems to work together

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human being that's going to be deployed

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into space as well as some of the tools

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that we use on the surface if we ever go