This week was to be a historic spacewalk, with women operating outside the ISS for the first time ever. News of the event was announced earlier this month when an air traffic controller tweeted about the schedule, but NASA at the time stated that "tasks and schedules could always change." Well, that's what happened because the second of three planned spacewalks is being done by a man and a woman, Nick Hague and Christina Koch.
According to NASA, Hague conducted the first operation there with astronaut Anne McClain last week there was a problem with the fit of McClains spacesuit. The Hard Upper Torso (H.U.T.), which is actually the "T-shirt" section of the Enhanced EMU suit that astronauts wear on spacewalks, is available in three sizes: Medium, Large and XL. McClain had been training in both medium and large units, but found that the average size worked better for them. According to a spokesman, there are two medium-sized units aboard, but only one can be done on time so Koch will go with Hague instead and the story has to be done on another day.
There is some confusion about how this happens It could happen that there are a few problems. Of course, astronauts are extensively measured before their journey, but there's no way to simulate the vast effects of weightlessness on their bodies, and earlier this month, McClain tweeted that she had grown two inches since launch.