ESA astronaut Luca Parmitano works on the International Space Station in a July 16, 2013 spacewalk. A little more than one hour into the spacewalk, Parmitano reported water floating behind his head ... more 
ESA astronaut Luca Parmitano works on the International Space Station in a July 16, 2013 spacewalk. A little more than one hour into the spacewalk, Parmitano reported water floating behind his head inside his helmet. The water was not an immedi less 
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SPACE.com | Photo By NASA
Tue, Jul 23, 2013 3:25 PM EDT