The US space agency NASA  aborted a planned 6.5-hour spacewalk by two astronauts outside the International Space Station (ISSC), when one of the spacewalkers reported water floating behind his head inside his helmet. The water was not an immediate health hazard for Parmitano, but Mission Control decided to end the spacewalk early.

The NASA said Chris Cassidy and Parmitano were already safely back in the space station, and engineers were continuing to evaluate data to determine the cause of the leak. Both astronauts had planned to lay wires for the arrival of a new Russian multipurpose laboratory module later this year and to do other maintenance works. The spacewalk officially ended within 1 hour and 32 minutes but it was planned for  6.5-hour venture outside the space station. NASA said none of those tasks were urgent and that the crew and station were not in any danger.

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