The critical ammonia loop keeping the International Space Station from overheating
In short: Watch how astronauts Rick Mastracchio and Mike Hopkins performed a high-stakes repair on the International Space Station's cooling system. This video captures the technical precision required to maintain life-sustaining temperatures in orbit.
On December 24, astronauts conducted a second spacewalk to replace a faulty coolant pump module. Crucial for managing heat across all station components, this particular pump serves as a component of one of the two outer ammonia-based cooling circuits.
The repair was necessitated by a malfunction on December 11. To ensure the crew had sufficient time to focus on this critical maintenance, NASA postponed a planned Orbital Sciences Cygnus spacecraft mission to at least mid-January.
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- Summary by Intellect · source: NASA Conducts Second Spacewalk to Fix Coolant Pump on ISS
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