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PBS News Hour
How these 2 astronauts took a giant leap for womankind
NASA astronauts Jessica Meir and Christina Koch conducted the first all-female spacewalk outside the International Space Station on Friday. The occasion represented a momentous milestone for the space program, which long disregarded women. Meir and Koch held a news conference from space, during which President Trump called them to offer congratulations. William Brangham reports.
