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houston station on space to ground

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welcome to space to ground i'm kayla

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lafrance the crew on board the space

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station put a lot of miles on their

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space walking shoes this week

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on sunday june 20th nasa astronaut shane

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kimbrough and esa astronaut thomas

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set out on the second of three

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spacewalks tasked with installing two

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new irosa or iss rollout solar arrays

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onto the p6 truss to augment power

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capability for the orbiting laboratory

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at the end of their 6 hour and 28

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minutes spacewalk the duo had

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successfully completed the solar array

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installation and deployment for the

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first irosa the array measures 60 feet

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long and 15 feet wide and will generate

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20 kilowatts of power on the 2b power

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channel

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five days later brought kimbrough and

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pasquet back out to the far reaching p-6

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truss to work on the installation of the

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second new solar array these two new

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solar arrays arrived recently on

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spacex's 22nd cargo vehicle and are the

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first of six planned arrays when the six

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new solar arrays are installed they will

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provide up to 120 kilowatts of augmented

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power during orbital daytime to the

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space station ensuring continued

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habitability and science utilization for

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many more years to come

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science was still in focus this week

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despite the crew's busy spacewalking

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schedule

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jaxa astronaut aki hoshide removed a

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sample tray from the sample chamber of

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the lyophilization ii experiment

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currently in the microgravity science

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glovebox

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lyophilization or freeze drying is a

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common method for formulating

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pharmaceuticals to improve their

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stability and shelf life the

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lyophilization ii experiment is designed

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to examine if and how microgravity

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affects freeze-dried materials

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differently and to understand the

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influence of gravity on their physical

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state

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the phrase drying process has potential

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use for long-term storage of medications

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and other resources on future

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exploration missions to the moon and

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mars

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improvements in this process could

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support efforts to use it to deliver

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products with similar physical

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properties here on earth as well

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the station crew also began to prepare

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for a busy week of cargo traffic

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make sure to join us on tuesday june

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29th to watch the departure of northrup

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grumman cygnus on the crs-15 mission

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from the international space station and

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later from the baikonur cosmodrome the

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progress 78 cargo ship will launch to

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the space station

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you can follow coverage of both events

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on nasa tv the agency's website and the

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nasa app

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and that's space to ground for this week

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thanks for watching we'll see you next