NASA aborts spacewalk after leak into astronaut's helmet

Tue Jul 16, 2013 7:49pm EDT
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By David Adams

CAPE CANAVERAL, Florida (Reuters) - A spacewalk to work on the International Space Station ended abruptly on Tuesday when a water-like liquid started building up inside an Italian astronaut's helmet, NASA officials said.

U.S. astronaut Chris Cassidy and Italy's Luca Parmitano were less than an hour into a planned six-hour outing when Parmitano reported what seemed to be water inside his helmet.

"My head is really wet and I have a feeling it's increasing," Parmitano radioed to flight controllers in Houston.

Thinking it might be his drink bag leaking, Parmitano drained the bag, but in the weightless environment of space, blobs of liquid continued to collect in his helmet.

"Where's it coming from?" Parmitano said. "It's too much. Now it's in my eyes."

With the astronaut at risk of choking or drowning, NASA called off the spacewalk just before 9 a.m. EDT.

"It was clear that he was having trouble," flight director David Korth later told reporters on a conference call.

Preliminary analysis indicates the leak did not stem from the drink bag, leading engineers to focus on the astronaut's liquid-cooled undergarment as the source.   Continued...

U.S. astronaut Karen Nyberg assists Italian astronaut Luca Parmitano after water began building up inside his helmet during a spacewalk outside the International Space Station, in this still image taken from NASA video July 16, 2013. REUTERS/NASA/Handout via Reuters