Two NASA astronauts worked to replace batteries outside of the International Space Station, completing the first in a series of spacewalks to upgrade the orbiting lab's power system.
Astronauts Complete First Spacewalk in Series to Upgrade Station Batteries
SPACE.com - 6 Oct 2019 21:15
Two NASA astronauts worked to replace batteries outside of the International Space Station, completing the first in a series of spacewalks to upgrade the orbiting lab's power system.
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