NASA astronaut Suni Williams rides the Canadarm2 robotic arm

NASA astronaut and Expedition 72 Commander Suni Williams is attached to the Canadarm2 robotic arm's latching end effector while being maneuvered to her worksite 264 miles above the South Pacific Ocean. Williams removed and stowed a radio frequency group antenna assembly during the five-hour and 26-minute spacewalk outside the International Space Station.