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This is mission control Houston.

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The International Space Station's Expedition
30 crew put in a lot of science time this

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week despite having the week shortened somewhat
by a holiday and also going through some unexpected

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events on their schedule.

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The week kicked off on Monday with the crew
having time off duty in observance of the

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Russian Christmas holiday, although most of
the crew members did some exercise on the

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Advanced Resistive Exercise Device, which
was downlinked for review by specialists in

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Houston.

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That’s done in order to verify that the
crew members are performing the exercise properly

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as well as to evaluate the performance of
the equipment itself.

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On Monday station Commander Dan Burbank also
had an amateur radio talk with some high school

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students near Paris, and Russian crew members
start of a weeklong effort to provide video

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for a Russian television program for kids
about science that’s known as “Science

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2.0.”

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On Tuesday crew members began gathering science
data immediately after wake up, taking body

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mass measurements and calf volume measurements.

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Data of that nature is gathered for ongoing
research into how a person's body response

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to spending an extended period of time in
the absence of gravity.

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Each day the crew members have two physical
workouts to help them combat the bone and

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muscle loss that comes as a result of a long-duration
trip in space.

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The science gathering continued through the
week as the crew members spent time variously

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with experiments gathering more physical data,
including measurements of oxygen uptake during

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exercise.

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That experiment known as the VO2max experiment
closely monitors a crew member’s respiration

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while they are exercising so the specialists
on the ground can determine if they are getting

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enough oxygen while they exercise and if needed
to make adjustments to their exercise routines.

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Crew members also conducted ultrasound examinations
of their eyes.

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They monitored cardiovascular function during
exercise, and they also took tests of their

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own reaction time to measure the impact on
them of the fatigue from being in space.

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Burbank spent time during the week today,
during the week, also removing a secondary

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power distribution assembly jumper in the
Destiny laboratory.

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That was another step to get the systems into
the proper configuration to support next month's

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client commercial cargo demonstration flight
to the International Space Station.

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Andre Kuipers also had an opportunity in a
European space agency public affairs about

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to speak with the Prime Minister of the Netherlands
and students at Delft University in the city

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of Delft.

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On Wednesday Burbank installed a spare communications
unit that’s also needed for the flight of

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that commercial cargo ship Dragon and he finished
an annual maintenance on the Waste Hygiene

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Compartment, changing out hydraulic components.

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Flight Engineers Anton Shkaplerov and Anatoly
Ivanishin worked stowing items in the Progress

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supply ship that is attached to the Pirs docking
compartment.

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And they did other preparations for the undocking
of that vehicle which is targeted for Monday,

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January 23.

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Flight Engineer Oleg Kononenko spent a big
part of the day on Wednesday monitoring the

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refilling the cooling loops in the environmental
control system in the Russian segment of the

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station, as well as taking some microbial
air samples.

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Flight Engineer Don Pettit on Wednesday activated
the NanoRacks experiment, which is a new experiment

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on the station which is processing material
science samples in that microgravity environment.

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On Thursday station commander set up and executed
a protocol to scrub the cooling loops of two

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of the Extravehicular Mobility Units, the
spacesuits that are worn by crew members when

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they do spacewalks out of the Quest airlock
in the Russian, rather the American segment

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of the station.

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Burbank did that and joined Kuipers and Pettit
to discuss the progress of their mission in

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an on-orbit interview with the Weather Channel.

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On Thursday the team in Mission Control in
Houston began planning a debris avoidance

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maneuver after the trajectory operations officers
determined that a piece of communications

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satellite debris was on course to pass close
by the station on two consecutive orbits on

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Friday afternoon.

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The Zvezda module's engines were used to perform
that maneuver Friday morning to move the station

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away from that anticipated conjunction.

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The maneuver also served put the station into
the proper orbit to support the arrival of

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a new Progress supply ship in two weeks time,
January 27, that will be arriving with a new