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[ Music ]

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>> Good Tuesday morning from
NASA's Johnson Space Center.

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This is Mission Control Houston.

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This is the International Space
Station Flight Control Room.

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The team is focusing today
pretty much exclusively

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on a very intricate
task, that is going

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through a complete upgrade

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of the KU band communications
system aboard the International

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Space Station.

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It's a very detailed
activity that's ongoing in --

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on the station and on the
ground, on the station in one

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of the avionics racks inside
the US laboratory Destiny,

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which was launched to the
station back in February

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of 2001, aboard Space
Shuttle Atlantis.

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The crew members that are
focusing their attention onboard

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to this task are Crew Commander

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from the Canadian Space
Agency Chris Hadfield,

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and Tom Marshburn who is
a medical doctor onboard,

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but he's also serving obviously
in a maintenance activity

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as well on this task

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to completely upgrade
the communications system

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on the International
Space Station.

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In addition to the
maintenance activity ongoing

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in the laboratory all day today
for the crew, there's a series

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of experiments that are
ongoing, mainly focusing

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on the human research activity.

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All six crew members early

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after their 1:00 a.m.
central time wakeup,

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their post-sleep activities
included conducting a periodic

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body mass measurement,
essentially weighing themselves

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in space, a task
that sounds easy

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but it's a little more intricate
in the microgravity environment

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of space to take a mass
measurement periodically

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of the crew members to see
how their body mass changes

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over long duration
stays in space.

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Crew members also are
conducting some work associated

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with the high-tech freezers
onboard that protect samples

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that are taken throughout
these stays aboard the station.

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The crew members to periodically
will take blood samples,

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urine samples, saliva samples,
and those are preserved

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in the freezers and
delivered back home

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on a cargo vehicle
at a later time.

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So a busy day for all six
crew members that make