NASA astronauts Jeff Williams and Kate Rubins (shown here) successfully installed a new international docking adapter Friday Aug 19, 2016 during a five hour and 58-minute spacewalk. Japanese astronaut Takuya Onishi assisted the duo from inside the station, while all three cleaned up the Quest airlock afterward where they stowed their spacesuits and tools. Williams is scheduled to return to Earth on Sept. 6 with Russian cosmonauts Oleg Skripochka and Alexey Ovchinin ending Expedition 48.