WEBVTT

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[upbeat music]

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- "OUR WORLD."

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[rain pattering]

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- HEY, EVERYBODY.

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I'M LILY,
AND THIS IS "OUR WORLD."

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I'M ABOUT TO GO OVER
TO MY FRIEND'S HOUSE TO PLAY,

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BUT IT'S RAINING OUTSIDE.

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NOW, SOME PEOPLE MIGHT BE SCARED
OF THE RAIN, BUT NOT ME.

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I'M AN EXPLORER.

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SO I'M GONNA GO GET READY.

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COME ON.

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WELL, I'VE GOT MY RAINCOAT ON,

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BUT I SHOULD PROBABLY CHECK
THE WEATHER REPORT

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TO SEE HOW LONG THIS RAIN'S
GOING TO LAST.

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OOH!

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IT'S NASA TV, AND THAT'S
ASTRONAUT SANDY MAGNUS.

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THE WEATHER CAN WAIT.

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LET'S SEE
WHAT SHE'S TALKING ABOUT.

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- IN ORDER TO GO OUTSIDE,

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WE NEED TO HAVE SPECIAL SUITS
DESIGNED TO DO IT.

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THEY'RE ACTUALLY ONE-PERSON
SPACESHIPS,

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AND THEY HAVE TO DO EVERYTHING
TO PROTECT YOU

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THAT BASICALLY
THE SPACE STATION DOES

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TO PROTECT US WHILE WE'RE FLYING
THROUGH SPACE

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AT 17,500 MILES PER HOUR.

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- WOW, THAT'S FAST.

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- AND SO THE ENGINEERS
HAD TO SORT OF TAKE SOMETHING

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LIKE THE SPACE STATION
AND SQUINCH IT DOWN

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TO MAKE IT FIT ONE PERSON.

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ALSO IT HAS TO PROTECT YOU

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FROM THE EXTREME ENVIRONMENT
OF SPACE.

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THERE'S HUGE TEMPERATURE SWINGS

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WHETHER YOU'RE IN THE SUN
OR YOU'RE IN THE SHADE,

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AND IT HAS TO BE ABLE
TO PROTECT YOU

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FROM THOSE TEMPERATURE SWINGS
AS WELL.

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- COOL.

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I GUESS MY RAINCOAT
IS A LITTLE LIKE A SPACE SUIT.

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IT PROTECTS ME FROM THE RAIN,

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AND IT HELPS KEEP ME
NICE AND WARM.

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I WONDER WHAT ELSE
SPACE SUITS HAVE TO DO.

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- IT HAS TO HAVE A WAY
TO GIVE YOU OXYGEN,

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AND WHEN YOU'RE BREATHING,
OF COURSE,

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YOU'RE PUTTING CARBON DIOXIDE
BACK INTO THE SYSTEM,

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SO IT HAS TO HAVE A WAY
TO CLEAN THE CARBON DIOXIDE

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OUT OF THE AIR
THAT'S IN YOUR SPACE SUIT.

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IT, OF COURSE, HAS TO HAVE
ELECTRICITY, A POWER SOURCE,

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SO THAT ALL THE OTHER SYSTEMS
CAN RUN.

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- I GUESS I'LL HAVE TO GET
A SPACE SUIT.

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- IT ALSO HAS TO BE
FLEXIBLE ENOUGH

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THAT YOU CAN MOVE AROUND
AND WORK IN IT.

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IT CAN'T BE, YOU KNOW,
A HARD METAL SPHERE

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THAT YOU JUST SIT INSIDE
AND FLOAT AROUND IN.

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YOU HAVE TO BE ABLE
TO WORK IN IT.

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SO THAT MEANS ALL OF
THE HUMAN FACTORS PEOPLE

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NEED TO GET INVOLVED AS WELL.

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IT CAN'T BE RIGID.
IT HAS TO BE SOFT AND FLEXIBLE.

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- WOW, IMAGINE HOW TOUGH IT
WOULD BE TO WORK IN A HARD SUIT

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THAT DIDN'T BEND.

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PRETEND YOU DON'T
HAVE ANY ELBOWS

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SO YOU CAN'T BEND YOUR ARMS.

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WHAT ARE SOME OF THE THINGS
YOU WOULDN'T BE ABLE TO DO?

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AND TRY WALKING IF YOU COULDN'T
BEND YOUR KNEES.

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I WONDER WHY ASTRONAUTS NEED
TO GO OUTSIDE THE SPACE STATION.

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MAYBE SANDY WILL TELL US.

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- WHAT WE DO IS, WE GO OUTSIDE
IN THE VACUUM OF SPACE

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IN OUR SPECIAL SUITS,

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AND WE PERFORM TASKS OUT THERE
THAT NEED TO BE DONE.

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SOME THINGS, OF COURSE,
WE CAN DO WITH ROBOTS,

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BUT FOR A LOT OF THINGS,
YOU NEED A HUMAN BEING,

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AND THERE'S A LOT OF EQUIPMENT

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ON THE OUTSIDE
OF THE SPACE STATION

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THAT NEEDS TO BE TAKEN CARE OF.

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IT'S LIKE KIND OF LIKE
IN YOUR HOUSE

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WHEN YOUR ROOF NEEDS A REPAIR

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OR THE AIR-CONDITIONING
THAT'S OUTSIDE NEEDS A REPAIR

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OR YOU HAVE TO GO OUT
TO THE GARAGE AND DO SOMETHING,

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IT'S KIND OF THE SAME THING
ON THE SPACE STATION.

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WE HAVE A LOT OF THINGS
THAT ARE OUTSIDE

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THAT NEED TO HAVE PEOPLE GO OUT

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AND TAKE A LOOK AT THEM
AND FIX THEM.

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AND WE ALSO PUT SCIENCE
EXPERIMENTS OUTSIDE

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IN THE VACUUM OF SPACE

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BECAUSE YOU CAN LEARN
MORE INTERESTING THINGS

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ABOUT THE ENVIRONMENT
OUT THERE AS WELL.

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- OH, IT LOOKS LIKE
THE RAIN STOPPED.

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TIME FOR ME TO GET
OUT OF THIS RAINCOAT.

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HERE, KEEP WATCHING SANDY
WHILE I GET READY TO GO.

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- AND WHEN YOU GUYS ARE READY
TO COME TO NASA

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AND HELP US WITH SOME OF OUR
PROBLEMS OF LIVING IN SPACE,

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YOU'LL HAVE TO HELP US DESIGN
A SPACE SUIT FOR GOING TO MARS,

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AND IT'LL BE A LITTLE BIT
LIKE THE ONE FOR THE MOON,

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BUT THE ENVIRONMENT ON MARS
IS DIFFERENT,

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AND THE MATERIALS THERE
ARE DIFFERENT,

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AND THE GRAVITY
THERE IS DIFFERENT,

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AND SO WE'LL HAVE TO COME UP
WITH YET A DIFFERENT KIND

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OF DESIGN FOR A SPACE SUIT.

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- OOH!

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I CAN DESIGN SPACE SUITS
WHEN I GROW UP?

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THAT'S REALLY COOL.

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MY RAINY DAY TURNED OUT
REALLY GOOD.

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SO WHAT DID WE LEARN TODAY?

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WE LEARNED THAT ASTRONAUT
SPACE SUITS

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ARE LIKE ONE-PERSON SPACESHIPS.

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WE LEARNED THAT ASTRONAUTS
DO MANY KINDS OF WORK

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OUTSIDE THE SPACE STATION.

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AND WE LEARNED THAT NASA
IS GOING TO NEED US

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TO HELP DESIGN SPACE SUITS
FOR NEW MISSIONS.

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I'LL HAVE TO THINK ABOUT
MY DESIGN FOR A SPACE SUIT.

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I THINK I'LL MAKE MINE GREEN.

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- "OUR WORLD."