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[ Music ]

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>> It is Wednesday, April 24th,

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and the Expedition 35 crew
onboard the International Space

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Station has spent part
of its day taking care

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of their own emergency
preparedness,

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the rest of the day working
on a range of scientific

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and technical experiments
that are the heart

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of their mission of discovery.

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Flight engineers
Pavel Vinogradov

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and Roman Romanenko have spent
their afternoon disassembling

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the docking assembly of the
Progress ship that's now docked

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to the station at the
piers docking compartment.

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That vehicle is scheduled to
stay at the station until July.

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In the meantime, a new
progress vehicle headed

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for the International
Station launched this morning

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from the [inaudible] cosmodrome.

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That new Progress
-- Progress 51 --

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launched on time this morning,
and is headed for an arrival

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at the station at 7:26 Houston
time this Friday morning.

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Now one of the antennas for
the Coors [phonetic] automated

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docking system did
not deploy properly,

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and the Russian flight
controllers are currently

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assessing their options,
while continuing

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with the engine firings that
are refining the approach

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of the Progress vehicle
to the Space Station.

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It's expected to the arrive
at the Zvezda F docking port

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on Friday morning, and NASA TV

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and NASA.gov will have live
coverage of the docking,

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beginning at 6:45
a.m. central time.

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Today Commander Chris Hadfield
completed a lens change

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on the earth cam camera,
supporting another week

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of photography of targets
all over the earth,

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taken by students from
all around the globe.

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Hadfield then joined
his crewmates

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for an emergency response drill
-- a routine practice for crews

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to periodically refresh
themselves on how they respond

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to onboard emergencies.

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Although the crew members
later took part in a conference

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with ground teams to
evaluate the response

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of everyone involved.

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Hadfield also helped Flight
Engineer Chris Cassidy

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with an ultrasound session,
getting images of a variety

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of targets on Cassidy's body for
study by surgeons and as well

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with an eye toward developing
better telemedicine techniques

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for use in the future in
space, but also on the ground.

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Flight Engineer Tom Marshburn
had several hours Wednesday

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setting up the robonaut
in the Destiny laboratory,

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for use in Thursday
experiment operations

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when he will telerobotically
control R2 by both his voice,

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and by having him -- having it
mimic his head and hand motions.

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Robonaut is an experiment
that's just another step

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in developing better
robotic capabilities for use

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in future space exploration.

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Flight Engineer Alexander
Misurkin devoted the early part

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of his day on Wednesday to
cleaning out ventilation systems

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in the Russian segment
of the station,

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his afternoon spent testing
experiment equipment,

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and taking routine air samples

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as the crew monitors the
environmental quality inside

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the station.

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All of the crew members
keeping an eye on the approach

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of the new Progress cargo ship,
which is due Friday morning,

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with more than 3
tons of supplies

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for the station's crew members,
as well as for the dozens

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of experiments that
they're working

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with as they push forward
with a mission of science