Expedition 39 wrapped up its first full workweek aboard the International Space Station as a six-person crew Friday with biomedical research and preparations for the departure of Russian cargo spacecraft. Seen here is Flight Engineer Steve Swanson, smiling as he checks out the International Space Station's cupola. The three newest crew members continued learning the ropes of their new orbital home for the next six months and performing research experiments aboard the orbiting outpost. Image credit: NASA #nasa #astropics #cupola #iss #exp39 #space #spacestation