NASA

ISS spacewalks complete, astronauts send back some stunning images

ISS spacewalks complete, astronauts send back some stunning images

The astronauts who this week took to the vacuum of space to repair a malfunctioning ammonia coolant pump on the exterior of the International Space Station are safely back inside. The electrical systems that depend on the cooling loop run by the pump are now back online. Today astronauts Rick Mastracchio, Mike Hopkins, and Koichi Wakata took the time to reflect back on the spacewalks and provide us with some photos of the operation.

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