ROUGH CUT (NO REPORTER NARRATION)<br/> <br />STORY: 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.<br/> <br />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.<br/> <br />"My head is really wet and I have a feeling it's increasing," Parmitano radioed to flight controllers in Houston.<br/> <br />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..<br/> <br />NASA called off the spacewalk just before 9 a.m. EDT (1300 GMT) and Cassidy hastily cleaned up equipment while Parmitano waited in the station's airlock.<br/> <br />Inside the station, NASA astronaut Karen Nyberg and cosmonauts Pavel Vinogradov and Fyodor Yurchikhin took off Parmitano's he
