Expedition 48 Commander Jeff Williams monitors bowling ball-sized internal satellites known as SPHERES. As of today, August 4, 2016, Expedition 48 Commander Jeff Williams has accumulated 500 days of living in space over four missions.
iss048e017435 — As of today, August 4, 2016, Expedition 48 Commander Jeff Williams has accumulated 500 days of living in space over four missions. Williams, who is scheduled to return to Earth Sept. 6, will break NASA astronaut Scott Kelly’s record of 520 days on Aug. 24.
In this June 30 photograph, Williams monitors bowling ball-sized internal satellites known as SPHERES (Synchronized Position Hold, Engage, Reorient, Experimental Satellites) during a maintenance run in the International Space Station’s Japanese Kibo Laboratory Module.
Image Credit: NASA