Washington — On Monday, the US space agency Nasa scrapped a planned historic spacewalk by two female astronauts, citing a lack of available spacesuits that would fit them at the International Space Station (ISS). Christina Koch will now perform tasks in space on Friday with fellow American Nick Hague — instead of Anne McClain as originally planned. Had Koch and McClain done their spacewalk together, it would have been the first ever by two female astronauts. Until now, male-only or mixed male-female teams have conducted spacewalks since the space station was assembled in 1998 — that’s 214 spacewalks. McClain worked outside the ISS last week — with Hague — when she realised that a “medium-sized upper half of her spacesuit fit” her better. “Because only one medium-size torso can be made ready by Friday, March 29, Koch will wear it,” Nasa explained. The spacesuits aboard the ISS are, in fact, assemblies of several parts put together for each astronaut’s body, explained Brandi Dean, spo...

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