Upgrading the Space Station Is All in a Day's Work July 06, 2020 via NASA NASA astronaut Robert Behnken works during the Wednesday, July 1, 2020, six-hour and one-minute spacewalk to swap an aging nickel-hydrogen battery for a new lithium-ion battery on the International Space Station's Starboard-6 truss structure. #NASA https://ift.tt/2VQUDHe
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