NASA astronauts will recreate history this morning and perform another all-female spacewalk

This morning, NASA astronauts Jessica Meir and Christina Koch are recreating their history-making all-female spacewalk. The pair will head outside the International Space Station today to do some more upgrades. It’ll be just the second time in history that two women have suited up — without any men — and performed a spacewalk together. And if all goes to plan, the pair could do it all again next week.

The purpose of today’s spacewalk isn’t all that remarkable, otherwise. Koch and Meir are tasked with continuing the multiyear process of swapping out batteries on the outside of the ISS. For decades, the space station relied on nickel-hydrogen batteries to store energy generated by the vehicle’s solar panels. But since 2017, NASA has been…

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