iss061e005520 (Oct. 11, 2019) — NASA astronaut Andrew Morgan waves to the camera while tethered on the Port 6 (P6) truss segment of the International Space Station. He and fellow NASA astronaut Christina Koch (out of frame) worked to replace older hydrogen-nickel batteries with newer, more powerful lithium-ion batteries on the P6 truss during the six-hour and 45-minute spacewalk.
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