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[ Music ]

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>> [Background Music]
Good morning.

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This is Mission Control

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at the Johnson Space
Center in Houston, Texas.

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On orbit we have the
Expedition 35 crew

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of Commander Chris
Hadfield joined

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by cosmonauts Pavel
Vinogradov, Alexander Misurkin,

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Roman Romanenko and NASA
astronauts Chris Cassidy

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and Tom Marshburn.

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First up for the crew,

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especially for Commander Chris
Hadfield was some dietary logs

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as part of the ongoing
energy experiment.

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This is a study being conducted
by the European Space Agency,

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which has the crew
members adhering

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to a strict regimented
diet and also,

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monitors their oxygen uptake
as a study of their metabolism.

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This will help ensure
proper nutrition

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to maximize crew performance
in future missions.

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[Background talking]
Chris Hadfield was joined

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by NASA astronaut Tom Marshburn
for work on the upgrades

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to the KU communications system.

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This morning they worked

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on the high rate communications
system Unit One installation.

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That lasted about
4 and a half hours.

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Hadfield and Marshburn
have spent most

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of the day installing the
redundant KU communications unit

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to complete the refurbishment
of the stations KU system.

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That KU Comm Unit Two, which
was installed and checked

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out last week will continue
to be the prime unit

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for the new high rate
communications system,

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with Unit One serving for
the time being as a backup.

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Their fellow crewmate Chris
Cassidy spent his morning doing

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a number of maintenance
tasks, including some work

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on the environmental
health system.

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He had about three hours
dedicated to the replacement

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of radiation area monitors.

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There was about 25 of
those placed throughout the

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International Space Station.

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The removed the original
25 and replaced them

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with new radiation monitors.

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It's Cassidy who's
also a new arrival

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on the International Space
Station has a few hours this

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afternoon dedicated to the
cleanup of the crew quarters

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that will continue throughout
the afternoon for him.

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He'll also have a private
routine medical checkup,

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and exercise sessions.

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Meanwhile their cosmonaut
counterparts Pavel Vinogradov

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and Roman Romanenko continued

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with their spacewalk
preparations.

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[Background talking] Today's
activities included preparations

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of the toolkit, as well as,
continued battery charging,

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as well as, some
sizing configurations

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for the two suits.

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That again, preparation
for a spacewalk

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that is scheduled
for April 19th.

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During that planning excursion
outside of the space station,

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the two cosmonauts will deploy
and retrieve experiments

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and replace a retro reflector
navigational aid on the exterior

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of the Zezda service
module that will be used

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by the European Space Agency's
ATV vehicle named Albert

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Einstein, that is
planned to dock

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to the space station in June.

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Their fellow cosmonaut
Alexander Misurkin worked

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on some science experiments,

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including the Chromatamass
experiment,

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and also did some saliva
and blood collections.

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He also worked on the
Constanta experiment

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which studies the effect of
microgravity on a enzyme.

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Again all of those
activities going smoothly,

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and we're in the early part of
the crew day that will continue

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for the next several hours.

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They are scheduled for
off duty and personal time

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around 2:30 p.m. Central
Time and crew sleep planned