Kevin Ford and Tom Marshburn

ISS034-E-028409 (11 Jan. 2013) --- With their feet anchored in floor restraints, NASA astronauts Kevin Ford (left), Expedition 34 commander; and Tom Marshburn, flight engineer, conduct a session of the Synchronized Position Hold, Engage, Reorient, Experimental Satellites Zero Robotics (SPHERES ZR) program in the Kibo laboratory of the International Space Station.