[upbeat music]
- "OUR WORLD."
[rain pattering]
- HEY, EVERYBODY.
I'M LILY, AND THIS IS "OUR WORLD."
I'M ABOUT TO GO OVER TO MY FRIEND'S HOUSE TO PLAY,
BUT IT'S RAINING OUTSIDE.
NOW, SOME PEOPLE MIGHT BE SCARED OF THE RAIN, BUT NOT ME.
I'M AN EXPLORER.
SO I'M GONNA GO GET READY.
COME ON.
WELL, I'VE GOT MY RAINCOAT ON,
BUT I SHOULD PROBABLY CHECK THE WEATHER REPORT
TO SEE HOW LONG THIS RAIN'S GOING TO LAST.
OOH!
IT'S NASA TV, AND THAT'S ASTRONAUT SANDY MAGNUS.
THE WEATHER CAN WAIT.
LET'S SEE WHAT SHE'S TALKING ABOUT.
- IN ORDER TO GO OUTSIDE,
WE NEED TO HAVE SPECIAL SUITS DESIGNED TO DO IT.
THEY'RE ACTUALLY ONE-PERSON SPACESHIPS,
AND THEY HAVE TO DO EVERYTHING TO PROTECT YOU
THAT BASICALLY THE SPACE STATION DOES
TO PROTECT US WHILE WE'RE FLYING THROUGH SPACE
AT 17,500 MILES PER HOUR.
- WOW, THAT'S FAST.
- AND SO THE ENGINEERS HAD TO SORT OF TAKE SOMETHING
LIKE THE SPACE STATION AND SQUINCH IT DOWN
TO MAKE IT FIT ONE PERSON.
ALSO IT HAS TO PROTECT YOU
FROM THE EXTREME ENVIRONMENT OF SPACE.
THERE'S HUGE TEMPERATURE SWINGS
WHETHER YOU'RE IN THE SUN OR YOU'RE IN THE SHADE,
AND IT HAS TO BE ABLE TO PROTECT YOU
FROM THOSE TEMPERATURE SWINGS AS WELL.
- COOL.
I GUESS MY RAINCOAT IS A LITTLE LIKE A SPACE SUIT.
IT PROTECTS ME FROM THE RAIN,
AND IT HELPS KEEP ME NICE AND WARM.
I WONDER WHAT ELSE SPACE SUITS HAVE TO DO.
- IT HAS TO HAVE A WAY TO GIVE YOU OXYGEN,
AND WHEN YOU'RE BREATHING, OF COURSE,
YOU'RE PUTTING CARBON DIOXIDE BACK INTO THE SYSTEM,
SO IT HAS TO HAVE A WAY TO CLEAN THE CARBON DIOXIDE
OUT OF THE AIR THAT'S IN YOUR SPACE SUIT.
IT, OF COURSE, HAS TO HAVE ELECTRICITY, A POWER SOURCE,
SO THAT ALL THE OTHER SYSTEMS CAN RUN.
- I GUESS I'LL HAVE TO GET A SPACE SUIT.
- IT ALSO HAS TO BE FLEXIBLE ENOUGH
THAT YOU CAN MOVE AROUND AND WORK IN IT.
IT CAN'T BE, YOU KNOW, A HARD METAL SPHERE
THAT YOU JUST SIT INSIDE AND FLOAT AROUND IN.
YOU HAVE TO BE ABLE TO WORK IN IT.
SO THAT MEANS ALL OF THE HUMAN FACTORS PEOPLE
NEED TO GET INVOLVED AS WELL.
IT CAN'T BE RIGID. IT HAS TO BE SOFT AND FLEXIBLE.
- WOW, IMAGINE HOW TOUGH IT WOULD BE TO WORK IN A HARD SUIT
THAT DIDN'T BEND.
PRETEND YOU DON'T HAVE ANY ELBOWS
SO YOU CAN'T BEND YOUR ARMS.
WHAT ARE SOME OF THE THINGS YOU WOULDN'T BE ABLE TO DO?
AND TRY WALKING IF YOU COULDN'T BEND YOUR KNEES.
I WONDER WHY ASTRONAUTS NEED TO GO OUTSIDE THE SPACE STATION.
MAYBE SANDY WILL TELL US.
- WHAT WE DO IS, WE GO OUTSIDE IN THE VACUUM OF SPACE
IN OUR SPECIAL SUITS,
AND WE PERFORM TASKS OUT THERE THAT NEED TO BE DONE.
SOME THINGS, OF COURSE, WE CAN DO WITH ROBOTS,
BUT FOR A LOT OF THINGS, YOU NEED A HUMAN BEING,
AND THERE'S A LOT OF EQUIPMENT
ON THE OUTSIDE OF THE SPACE STATION
THAT NEEDS TO BE TAKEN CARE OF.
IT'S LIKE KIND OF LIKE IN YOUR HOUSE
WHEN YOUR ROOF NEEDS A REPAIR
OR THE AIR-CONDITIONING THAT'S OUTSIDE NEEDS A REPAIR
OR YOU HAVE TO GO OUT TO THE GARAGE AND DO SOMETHING,
IT'S KIND OF THE SAME THING ON THE SPACE STATION.
WE HAVE A LOT OF THINGS THAT ARE OUTSIDE
THAT NEED TO HAVE PEOPLE GO OUT
AND TAKE A LOOK AT THEM AND FIX THEM.
AND WE ALSO PUT SCIENCE EXPERIMENTS OUTSIDE
IN THE VACUUM OF SPACE
BECAUSE YOU CAN LEARN MORE INTERESTING THINGS
ABOUT THE ENVIRONMENT OUT THERE AS WELL.
- OH, IT LOOKS LIKE THE RAIN STOPPED.
TIME FOR ME TO GET OUT OF THIS RAINCOAT.
HERE, KEEP WATCHING SANDY WHILE I GET READY TO GO.
- AND WHEN YOU GUYS ARE READY TO COME TO NASA
AND HELP US WITH SOME OF OUR PROBLEMS OF LIVING IN SPACE,
YOU'LL HAVE TO HELP US DESIGN A SPACE SUIT FOR GOING TO MARS,
AND IT'LL BE A LITTLE BIT LIKE THE ONE FOR THE MOON,
BUT THE ENVIRONMENT ON MARS IS DIFFERENT,
AND THE MATERIALS THERE ARE DIFFERENT,
AND THE GRAVITY THERE IS DIFFERENT,
AND SO WE'LL HAVE TO COME UP WITH YET A DIFFERENT KIND
OF DESIGN FOR A SPACE SUIT.
- OOH!
I CAN DESIGN SPACE SUITS WHEN I GROW UP?
THAT'S REALLY COOL.
MY RAINY DAY TURNED OUT REALLY GOOD.
SO WHAT DID WE LEARN TODAY?
WE LEARNED THAT ASTRONAUT SPACE SUITS
ARE LIKE ONE-PERSON SPACESHIPS.
WE LEARNED THAT ASTRONAUTS DO MANY KINDS OF WORK
OUTSIDE THE SPACE STATION.
AND WE LEARNED THAT NASA IS GOING TO NEED US
TO HELP DESIGN SPACE SUITS FOR NEW MISSIONS.
I'LL HAVE TO THINK ABOUT MY DESIGN FOR A SPACE SUIT.
I THINK I'LL MAKE MINE GREEN.
- "OUR WORLD."