Astronauts replace ISS nitrogen tank in spacewalk

Wednesday, February 13, 2008 Two astronauts have performed a spacewalk, or EVA, to replace a depleted nitrogen tank in the Integrated Truss Structure of the International Space Station. The Space Station’s Nitrogen Tank Assembly (NTA), was successfully replaced with a new one, launched aboard Space Shuttle Atlantis, which is currently visiting the station, on mission […]

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