ISS036-E-013240 (29 June 2013) --- NASA astronauts Chris Cassidy (left) and Karen Nyberg; along with European Space Agency astronaut Luca Parmitano, all Expedition 36 flight engineers, pose for a photo at the hatchway between the Quest airlock and the Unity node of the International Space Station.
Photographer Karen Nyberg
Date June 29, 2013