一天的工作:罗伯特本肯更新电站的电力系统
On June 26, 2020, NASA astronauts Bob Behnken and Chris Cassidy conducted the first of two spacewalks to swap batteries and upgrade power systems on the International Space Station’s Starboard-6 truss structure. Behnken is pictured here during the six-hour and seven-minute excursion. The two astronauts conducted a second spacewalk on July 1 to complete...