ISS028-E-014909 (8 July 2011) --- Russian cosmonauts Andrey Borisenko (left), Expedition 28 commander; Alexander Samokutyaev (center) and Sergei Volkov, both flight engineers, are pictured with Russian Elektron oxygen generator systems in the Zvezda Service Module of the International Space Station.
Photographer Mike Fossum
Date July 8, 2011