Inside the Harmony node of the International Space Station, Expedition 39 Flight Engineer Steve Swanson of NASA works with the Petri Plants experiment on May 13, 2014.
ISS039-E-020887 (13 May 2014) — Inside the Harmony node of the International Space Station, Expedition 39 Flight Engineer Steve Swanson of NASA works with the Petri Plants experiment on May 13, 2014. Only hours after this picture was taken, Swanson took over command of the orbital outpost.