Astronauts install new batteries outside the ISS

Astronauts install new batteries outside the ISS

Two NASA astronauts ventured outside the 20-year-old International Space Station to replace aging nickel-hydrogen batteries with fresh lithium-ion units.

Floating outside the Quest airlock to perform the 6.5-hour-long U.S. EVA-52 was NASA’s Anne McClain and Nick Hague, both Expedition 59 flight engineers.

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