ISS036-E-014724 (3 July 2013) --- NASA astronaut Chris Cassidy (left) and European Space Agency astronaut Luca Parmitano, both Expedition 36 flight engineers, attired in their Extravehicular Mobility Unit (EMU) spacesuits, participate in a dry run in the International Space Stations Quest airlock in preparation for the first of two sessions of extravehicular (EVA) scheduled for July 9 and July 16. NASA astronaut Karen Nyberg, flight engineer, assists Cassidy and Parmitano.

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