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15 January 202021.30 The first spacewalk of 2020 has ended. It is the second ever female. Everything went in the right direction except for a small accident in which the camera of the helmet of NASA astronaut Christina Koch was lost. With colleague Jessica Meir, Koch faced a long day of work outside the ISS, International Space Station, working along truss 6 to replace three nickel-hydrogen batteries with the new lithium batteries.