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WELCOME TO SPACE TO GROUND, I’M LEAH CHESHIER.

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HISTORY WAS MADE THIS WEEK AS NASA ASTRONAUTS CHRISTINA KOCH AND JESSICA MEIR ACCOMPLISHED

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THE FIRST EVER ALL-FEMALE SPACEWALK.

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THROUGHOUT SPACEFLIGHT HISTORY, 14 WOMEN HAVE COMPLETED SPACEWALKS.

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ON OCTOBER 18, JESSICA MEIR BROUGHT THAT NUMBER UP TO 15 WHEN SHE FLOATED OUTSIDE THE AIRLOCK

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ALONGSIDE 4-TIME SPACEWALKER CHRISTINA KOCH FOR THE FIRST ALL-FEMALE EXTRAVEHICULAR ACTIVITY.

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THE PAIR REPLACED A FAULTY BATTERY CHARGE/DISCHARGE UNIT, OR BCDU, WHICH REGULATES THE AMOUNT

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OF CHARGE THE STATION’S BATTERIES RECEIVE
FROM ENERGY COLLECTED BY THE SOLAR ARRAYS.

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THE REMAINING SPACEWALKS PLANNED TO CONTINUE INSTALLATION OF LITHIUM-ION BATTERIES WILL

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BE COMPLETED AT A LATER DATE.

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ANOTHER MAJOR MILESTONE OCCURRED THIS WEEK AS WE REVEALED THE NEXT GENERATION SPACESUIT

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FOR THE ARTEMIS GENERATION OF ASTRONAUTS.

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THE ARTEMIS PROGRAM WILL TAKE HUMANS FORWARD TO THE MOON IN 2024, LANDING THE FIRST WOMAN

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AND NEXT MAN ON THE LUNAR SOUTH POLE.

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THIS NEW SPACESUIT, CALLED THE EXPLORATION EXTRAVEHICULAR MOBILITY UNIT, OR XEMU, WILL

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ALLOW FOR GREATER MOBILITY AND ADVANCED COMMUNICATION SYSTEMS, PLUS ENHANCED SAFETY FEATURES.

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THE SUIT AND SEVERAL OF ITS COMPONENTS WILL BE TESTED ABOARD THE SPACE STATION IN A SPACEFLIGHT

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ENVIRONMENT TO CONFIRM THE OVERALL PERFORMANCE.

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THIS WEEK’S QUESTION COMES FROM KAREN, WHO ASKS ABOUT THE AVERAGE DURATION OF A SPACEWALK.

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ON AVERAGE, AMERICAN SPACEWALKS LAST ABOUT 6 AND A HALF HOURS.

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TEAMS ON THE GROUND ARE CONSTANTLY MONITORING ASTRONAUTS’ CONSUMABLES, LIKE OXYGEN, CARBON

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DIOXIDE AND WATER, AND SPACEWALKS CAN SOMETIMES LAST LONGER AS ASTRONAUTS ACCOMPLISH MORE TASKS.