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Photos: Astronauts Spacewalk to Fix Vital Space Station Cooling System

Building Spacesuits Aboard the International Space Station

Rick Mastracchio (via Twitter as @AstroRM)

Astronaut Rick Mastracchio tweeted this photo on Dec. 17, 2013, from the International Space Station. He wrote: "Have not looked out the window in 4 days. Too busy building space suits. Where did I put my gloves? pic.twitter.com/XDqcBKl9dG"

Mike Hopkins Works with Spacesuits in Quest Airlock

NASA TV

Flight Engineer Mike Hopkins works with spacesuits and spacewalk tools in the Quest airlock of the International Space Station.

Astronauts Prepare for Holiday Spacewalks

NASA TV

Astronauts on the International Space Station prep two spacesuits for a spacewalk. Image captured Dec. 16, 2013.

Starboard Pump Module Removal

NASA (via Flickr as NASA: 2Explore)

A NASA graphic shows how the starboard pump module removal will take place outside the International Space Station, scheduled for Dec. 21, 23 and 25, 2013.

Starboard Pump Module Worksites

NASA (via Flickr as NASA: 2Explore)

A NASA graphic shows the starboard pump module worksites on the International Space Station.

Position for QD Operations

NASA (via Flickr as NASA: 2Explore)

This NASA graphic shows the position for QD operations.

Spacesuit Snorkel at Johnson Space Center

collectSPACE.com/Robert Z. Pearlman

A makeshift spacesuit snorkel, as held up by NASA's spacewalk officer Allison Bolinger at Johnson Space Center, Dec. 18, 2013.

Helmet Absorption Pad (HAP)

NASA

The helmet absorption pad, or HAP, lines the back of the helmet to absorb any extra water that might develop inside, as displayed by NASA's spacewalk officer Allison Bolinger.

Partial Gravity Simulator Used for Spacewalk Preparation

NASA (via Flickr as NASA: 2Explore)

Workers use the Partial Gravity Simulator to plan the series of U.S. spacewalks to replace a pump module on the International Space Station scheduled for Dec. 21, 23 and 25, 2013.

Partial Gravity Simulator Used for Spacewalk Preparation #2

NASA (via Flickr as NASA: 2Explore)

Workers use the Partial Gravity Simulator to plan the series of U.S. spacewalks to replace a pump module on the International Space Station scheduled for Dec. 21, 23 and 25, 2013.

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