美国航宇局称,国际空间站两名航天员7月16日进行的一次出舱活动因其中一人头盔内出现漏水问题而被迫提前结束。该局称问题原因正在调查,但强调这未对航天员安全造成任何威胁。本次太空行走是要进行例行的修理工作,并为俄罗斯一个新舱段年内的到来作准备,原定要持续6小时15分钟,而实际上只持续了1小时32分钟。意大利航天员帕尔米塔诺 NASA said an outbound activity by two spacemen on the International Space Station on July 16 was forced to end early due to a leak in one of the helmets. The agency said the cause of the problem is under investigation, but stressed that it did not pose any threat to astronaut safety. The spacewalk was to be routinely repaired and to prepare for the arrival of a new segment of the Russian space during the year, originally scheduled to last 6 hours and 15 minutes while in fact only lasted 1 hour and 32 minutes. Italian astronaut Palmitano