Saturday Space Sight: Repairing the Station in Orbit

I’m walking on sunshine…in space…

Expedition 35 Flight Engineers Chris Cassidy (pictured) and Tom Marshburn (out of frame) completed a spacewalk to inspect and replace a pump controller box on the International Space Station’s far port truss (P6) leaking ammonia coolant. The two NASA astronauts conducted the 5-hour, 30-minute spacewalk to fix it.

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A leak of ammonia coolant from the area near or at the location of a Pump and Flow Control Subassembly was detected, prompting engineers and flight controllers to begin plans to support the spacewalk. The device contains the mechanical systems that drive the cooling functions for the port truss.

Image Credit: NASA

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