Williams and Wilmore both arrived at the ISS last June, aboard the first crewed test flight of Boeing's Starliner spacecraft.
As for the spacewalk itself, if you’d like to watch along with the event, it will be livestreamed on NASA’s streaming service ...
During the Thursday spacewalk, the two astronauts, Sunita Williams and Butch Willmore, will swab the Space Station for microorganisms.
The Expedition 72 crew has completed final preparations for a scheduled science and maintenance spacewalk on Thursday.
Visitors will choose their own path through the ISS and into space, interacting with astronauts, learning about life and work ...
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