Christmas Eve Space Station spacewalk

74594 full
74594 full

NASA has launched its webcast of Tuesday's spacewalk at the International Space Station, where two American astronauts will continue critical repairs on cooling equipment. The video player is embedded in this post.

Part I of the repair work on Saturday was highlighted by the 5 1/2 hour spacewalk of astronauts Michael Hopkins and Rick Mastracchio. They'll be doing the work again Tuesday. The goal: install a spare pump to replace the one they removed on Saturday.

It looks like the astronauts will be able to complete the work Tuesday — avoiding a possible third walk on Christmas Day.

NPR's Geoff Brumfiel explained what's going on in this post last week.

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