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the thing that's always driven and

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excited me is exploration in general so

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i think i've always been attracted to

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these extreme environments

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places where fewer people have been

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where conditions are a little bit more

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harsh a little bit more rare and really

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extreme in general

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i went to the antarctic five times four

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times was for my phd research

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and the work that we were pursuing then

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in the antarctic was looking at the

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diving physiology of emperor penguins

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they used this really big drill to

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create a hole in the ice and so you

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enter the water through that hole in the

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ice

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the first time you go diving through the

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sea ice hole you really never forget the

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feeling the water down there is a

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constant negative two celsius so 28

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degrees fahrenheit and you can see

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rays of light coming in from any crack

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or hole anywhere around the area

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and that's where you start realizing all

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of the color and the beauty in the

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antarctic is it's just an extraordinary

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experience and the things that i saw

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underwater there is definitely the most

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remarkable and exceptional diving i've

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ever had

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one of the things that we use for

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training for space flight for astronauts

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from all of our partner agencies is

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training in analogs so if you try to

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think what what are useful training

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platforms on the earth how do we

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replicate all the characteristics of a

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space mission

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one of the analogs that the european

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space agency developed is called caves

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and it's a technical caving mission so

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the caves training mission was in this

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very extraordinary cave in sardinia so

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you would sometimes be crawling through

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a hole that when you see it in the

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distance you don't think there's no way

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that you could even fit through that you

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know one at a time we would take off our

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packs and sort of shimmy like a snake

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through these tiny tiny little holes and

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then all of a sudden you would come out

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into this room this cathedral with a

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hundred meter granite wall i mean it was

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really just extraordinary and then we

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would go on daily excursions doing

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scientific experiments exploring mapping

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the cave so all really similar things we

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would do when we finally get to the

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point of exploring another planet for

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example as astronauts and then also

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emphasizing all the other skills that we

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use on the international space station

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the other connection that's really

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important to me is that all of these

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environments involve natural phenomenon

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on our planet so it all goes back to my

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interest in biology looking at this

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remarkable diversity in the animal

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kingdom with my previous research

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exploring all of these amazing

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landscapes and ecosystems on our planet

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and then eventually when i'm have the

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most extraordinary of any view when i'll

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be on the space station in a couple

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months looking down and seeing this

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magnificent planet earth and seeing the

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beauty of our planet and really

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understanding how special it is and how

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fragile it is and how important it is to

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protect it to take good care of our home

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planet to protect our oceans to protect

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the land and to be really a good steward

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in our universe

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[Music]

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i'm jessica muir i'm a scientist and a

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[Music]