Astronauts Chris Cassidy and Karen Nyberg

JSC2012-E-237243 (5 Nov. 2012) --- NASA astronauts Karen Nyberg, Expedition 36/37 flight engineer; and Chris Cassidy, Expedition 35/36 flight engineer, participate in a robotics training session in the Space Station Training Facility (SSTF) in the Jake Garn Simulation and Training Facility at NASA's Johnson Space Center. Photo credit: NASA