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"HOUSTON, STATION ON SPACE TO GROUND."

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

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THIS WEEK, CHRIS CASSIDY WORKED ON

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THE PACKED BED REACTOR EXPERIMENT,

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WHICH HAS NOTHING AT ALL TO DO WITH SLEEPING.

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THE PACKED BED REACTOR EXPERIMENT

7
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STUDIES HOW GASES AND LIQUIDS BEHAVE

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WHEN THEY FLOW SIMULTANEOUSLY THROUGH

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A COLUMN PACKED WITH MEDIA

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LIKE SMALL GLASS OR TEFLON BEADS.

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CURRENTLY, THE SPACE STATION

12
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USES THIS TECHNOLOGY IN ITS

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WATER RECOVERY SYSTEM,

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FUEL CELLS AND OTHER EQUIPMENT,

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BUT NONE ARE DESIGNED TO HANDLE

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GAS AND LIQUID SIMULTANEOUSLY IN MICROGRAVITY.

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BY STUDYING THE HYDRODYNAMICS

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OF LIQUID AND GAS FLOWS ON ORBIT,

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SCIENTISTS ARE HOPEFUL THIS RESEARCH

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WILL LEAD TO MORE EFFICIENT AND LIGHTWEIGHT

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THERMAL MANAGEMENT AND LIFE SUPPORT SYSTEMS

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THAT CONSUME LESS ENERGY, WHICH ALSO HELPS
US

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PREPARE FOR FUTURE ARTEMIS MISSIONS

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TO THE MOON, OR EVENTUALLY, TO MARS.

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NEXT WEEK, YOU CAN WATCH LIVE

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AS THE LAST “WHITE STORK” SPACECRAFT OF
ITS GENERATION

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DESCENDS FROM ITS PERCH ON THE INTERNATIONAL
SPACE STATION.

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THE JAPANESE EXPLORATION AEROSPACE AGENCY’S

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H-II TRANSFER VEHICLE,

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ALSO KNOWN AS KOUNOTORI, OR WHITE STORK,

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WILL DEPART THE STATION ON TUESDAY, AUGUST
18.

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STATION COMMANDER CHRIS CASSIDY WILL USE

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THE CANADARM2 TO RELEASE THE VEHICLE,

34
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DESTINED FOR A FIREY REENTRY INTO EARTH’S
ATMOSPHERE.

35
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THIS WAS THE NINTH FLIGHT OF JAXA’S ORIGINAL

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HTV SPACECRAFT DESIGN, WHICH OVER THE LAST
11 YEARS,

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DELIVERED MORE THAN 40 TONS OF SUPPLIES TO
STATION RESIDENTS,

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INCLUDING THE NEW LITHIUM ION BATTERIES INSTALLED

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DURING RECENT SPACEWALKS.

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JAXA IS DEVELOPING A NEW GENERATION

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OF CARGO CRAFT FOR FUTURE FLIGHTS, CALLED HTV-X.

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LIVE COVERAGE ON NASA TV BEGINS

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AT 1:15 PM EASTERN TIME ON AUGUST 18.

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THIS WEEK’S QUESTION COMES FROM MONICA RUIZ,

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WHO WANTED TO WHAT THE PURPOSE OF THE BOOKLET

46
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ATTACHED TO THE ASTRONAUTS’ LEFT ARM DURING
A SPACEWALK.

47
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GOOD EYE!

48
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THAT IS CALLED THE CUFF CHECKLIST,

49
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AND IS A SMALL BOOK WITH AN ELASTIC BAND

50
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TO FIT OVER THE SPACE SUIT.

51
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THIS BOOK CONTAINS CONTINGENCY RESPONSES

52
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THE CREW MAY NEED IF AN ISSUE ARISES

53
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WITH THEIR SUITS WHILE OUTSIDE THE STATION.

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IT ALSO CONTAINS BLANK PAGES FOR THE CREW

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TO ADD THEIR OWN NOTES OR MESSAGES

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BASED ON THE TASKS FOR A GIVEN SPACEWALK.

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KEEP SENDING IN YOUR QUESTIONS