Astronauts Kate Rubins and Jeff Williams Prepare For a Spacewalk
Expedition 48 crew members Kate Rubins (left) and Jeff Williams (right) of NASA outfit spacesuits inside of the Quest airlock aboard the International Space Station. Rubins and Williams will conduct a spacewalk on Friday, August 19, 2016, to install a new docking port that will enable the future arrival of U.S. commercial crew spacecraft. NASA/UPI
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