NASA astronaut Chris Cassidy and Italian astronaut Luca Parmitano planned to spend more than six hours spacewalking outside the International Space Station on July 16, 2013. But NASA cut the spacewalk... more 
NASA astronaut Chris Cassidy and Italian astronaut Luca Parmitano planned to spend more than six hours spacewalking outside the International Space Station on July 16, 2013. But NASA cut the spacewalk short after just an hour due to a water bui less 
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SPACE.com | Photo By NASA TV
Tue, Jul 16, 2013 9:50 AM EDT