On July 25, 1984, the Russian cosmonaut Svetlana Savitskaya became the first woman to embark on a spacewalk, also known as an extravehicular activity (EVA).
She spent three hours and 35 minutes doing welding experiments outside Russia’s Salyut 7 space station with her colleague Vladimir Dzhanibekov. They were cutting and welding metal and testing out new tools.
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During this mission, she also became the first woman to return to space for a second mission.
Related: What’s it like to work in space using bulky EVA gloves
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