First all-woman space walk puts spotlight on spacesuit design

The record-setting event serves as a reminder that spacesuits of the future need to work for a wider range of bodies than previously anticipated.

Floating in the near-vacuum of space, NASA astronauts Christina Koch and Jessica Meir are making history today as they embark on the first all-women space walk, spending more than five hours outside the International Space Station on a mission to replace a failed power controller for the orbiting laboratory.

The moment comes after much hubbub; Koch and Anne McClain were supposed to make the historic all-woman walk seven months back, on March 29. But in a space walk a few days earlier, McClain got her first in-flight experience working in the type of spacesuit designed for activities outside the station, known as an extravehicular mobility unit, or EMU.

While she had trained on Earth in both a medium

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