Watch Live As Astronauts Fix The Space Station Saturday

Article written: 20 Dec , 2013
Updated: 23 Dec , 2015

There’s a cooling problem on station, and two astronauts are ready to head outside to fix it. NASA astronauts Rick Mastracchio (a six-time spacewalker) and Mike Hopkins (a rookie) are expected to spend 6.5 hours “outside” starting at 7:10 a.m. EST (12:10 p.m. UTC) on Saturday. On robotics will be Japanese astronaut Koichi Wakata, who has operated every bit of robotics currently on station.

Click to watch Expedition 38’s crew action live above. (If for some reason the stream is not working, an alternate link is available here.) We’ll have full coverage of the spacewalk after it happens, too.

For a walkthrough of what’s going to happen, NASA handily provided a video that you can see below the jump. We also have links to all of our coverage so far.

In a nutshell, here’s what happened: a cooling loop shut down automatically on station Dec. 11 when the loop got too cold. NASA traced the problem to a faulty flow control valve inside of the pump. As agency officials prepared for a spacewalk just in case, NASA attempted to fix the valve and then control an alternate one from the ground.

However, the station is entering a time when there will be a lot of sun shining on it, making dockings and spacewalks difficult. To be prudent, NASA decided to do a spacewalk now and replace the pump. To keep the astronauts safe if another spacesuit leak happens again, the agency has introduced soaker pads and snorkels to the spacesuits.

Here’s what’s going to happen during the three spacewalks that are scheduled for Saturday, Monday (Dec. 23) and if necessary, Wednesday (Dec. 25), according to lead U.S. Spacewalk Officer Allison Bolinger:

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