Nasa astronauts Christina Koch and Andrew Morgan work outside the International Space Station. Photo: Nasa via AP

International Space Station astronauts replace old 180kg batteries in first of five spacewalks

  • Daunting project involved replacing huge batteries which are essential to operation of the space station’s solar power network
Topic |   Space

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Nasa astronauts Christina Koch and Andrew Morgan work outside the International Space Station. Photo: Nasa via AP
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