By Rebecca Taylor, news reporter
The female astronaut at the centre of a row over spacesuit sizes has said the first all-women spacewalk was cancelled at her recommendation.
Anne McClain was due to join Christina Koch for the first all-female spacewalk from the International Space Station on Friday, but had to pull out because there were not enough medium-sized suits.
Ms McClain was swapped out for male astronaut Nick Hague.
The astronaut has now explained that she thought the larger spacesuit would be fine for the assignment, but then decided she would need a smaller fit.
She tweeted: "This decision was based on my recommendation.
"Leaders must make tough calls, and I am fortunate to work with a team who trusts my judgement.
"We must never accept a risk that can instead be mitigated. Safety of the crew and execution of the mission come first."
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