NASA puzzled as astronaut's helmet leak halts spacewalk

AFP_WASHINGTON: NASA cut short a spacewalk at the International Space Station Tuesday after an Italian astronaut discovered water leaking in his helmet, puzzling engineers as to the cause.Italian astronaut Luca Parmitano was on his second career spacewalk when he reported feeling water pooling at the back of his head.Soon, he was unable to see, hear or talk and was rushed back into the space station, where he quickly recovered.The US space agency said it has never seen a problem like this

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