It was thought that the two astronauts Christina Hammock Koch and Anne McClain together would make a spacewalk on Friday, which would be the first time two women together performed one.

But when McClain worked on the outside of the ISS last week, she realized that a top of the rymddräkten was too big. A top in size medium would fit better, which is the same size as Koch has.

”Because there is only one top in the medium, which can be completed until on Friday the 29th march so will Koch to wear it”, says Nasa.

perform the spacewalk together with astronaut Nick Hague, which has a larger size on his costume.

Of the 214 spacewalks so far carried out on the ISS have all been made by men only, or in a combination of men and women.