NASA astronauts prep ISS for new solar arrays on 5th-ever all-female spacewalk

美国宇航局宇航员正在为国际空间站的新太阳能电池阵列做准备，这是有史以来第五次全女性太空行走

Two NASA astronauts performed history's fifth all-female spacewalk today (May 1), moving an antenna and partially preparing the International Space Station for a new set of solar arrays.

美国国家航空航天局两名宇航员于今天完成了历史上第五次全女性太空行走，期间移动了一个天线，并为国际空间站安装一套新的太阳能电池阵列做了部分准备工作。

Expedition 73 crewmates Anne McClain and Nichole Ayers competed a 5-hour, 44-minute extravehicular activity (EVA, or spacewalk) at 2:49 p.m. EDT (1849 GMT) today, after they reentered the station's Quest airlock and it began to be re-pressurized.

美国东部夏令时间今天下午 2 点 49 分（格林尼治标准时间 18 点 49 分），73 号远征队成员安妮・麦克莱恩（Anne McClain）和尼科尔・艾尔斯（Nichole Ayers）重新进入国际空间站的 “探索” 气闸舱并开始对其重新加压后，完成了一次时长 5 小时 44 分钟的舱外活动（EVA，即太空行走）。

McClain and Ayers accomplished most of what they set out achieve today, but running late on their timeline and with limited consumables, they had to defer some of the tasks to a later spacewalk.

麦克莱恩和艾尔斯完成了今天计划达成的大部分任务，但由于进度滞后且消耗品有限，她们不得不将部分任务推迟到后续的太空行走中进行。

Getting started at 9:05 a.m. EDT (1305 GMT), the two women carried tools and equipment out to the port (or left) side of the space station's backbone truss, where they got to work assembling the attachment hardware for the seventh pair of International Space Station Rollout Solar Arrays, or IROSA, which will be installed after they arrive on a SpaceX Dragon commercial resupply services mission later this year.

美国东部夏令时间上午 9 点 05 分（格林尼治标准时间 13 点 05 分），两名女宇航员携带工具和设备前往国际空间站主桁架的左侧（或端口侧），开始组装第七对国际空间站可展开太阳能电池阵列（IROSA）的连接硬件。这些电池阵列将在今年晚些时候由 SpaceX 龙飞船商业补给服务任务运送至空间站后进行安装。

When complete, the new smaller, but more efficient, solar arrays will boost electricity generation capability by up to 30%, increasing the station's total available power from 160 to up to 215 kilowatts.

这些更小但效率更高的新太阳能电池阵列完成后，将使发电能力提升幅度最高可达 30%，国际空间站的总可用电力将从 160 千瓦增加至最高 215 千瓦。

McClain and Ayers built and mounted the upper triangle of the mast canister modification kit, as well as the right struts, but then were instructed to clean up their workstations and move on to the next, higher priority task.

麦克莱恩和艾尔斯搭建并安装了桅杆罐改装套件的上部三角形结构以及右支柱，但随后接到指令，要求清理工作区并转向下一个更高优先级的任务。

"We have reached the min config and have decided to clean up and prioritize the C2V2 [Common Communications for Visiting Vehicles]," mission control at NASA's Johnson Space Center in Houston advised the two spacewalkers.

美国国家航空航天局（NASA）休斯敦约翰逊航天中心的任务控制中心告知两位太空行走者：“我们已达到最低配置，决定清理工作并优先处理 C2V2（来访航天器通用通信系统）。”

The astronauts stowed their equipment and McClain repositioned a foot restraint. She and Ayers then met at the P3 truss segment, also on the left side of the International Space Station. There they relocated an antenna used by Northrop Grumman's Cygnus cargo vehicles when they come to resupply the space station.

宇航员们收好设备，麦克莱恩重新调整了脚部固定装置的位置。随后，她与艾尔斯在国际空间站左侧的 P3 桁架段会合，在那里重新安置了诺斯罗普・格鲁曼公司天鹅座货运飞船前来为空间站补给时使用的一根天线。

With the limited time remaining in the EVA, the astronauts wrapped up their work by tackling a couple of "get ahead" tasks. While Ayers ran and attached a jumper cable to convert DC power from the U.S. operating segment's P6 truss to the Russian segment of the space station, McClain worked on releasing bolts on a micro-meteoroid debris cover to prep it for future work.

在舱外活动（EVA）剩余时间有限的情况下，宇航员通过处理几项 “预先准备” 任务结束了工作。当艾尔斯铺设并连接一根跨接电缆，将美国操作舱段 P6 桁架的直流电转换至空间站俄罗斯舱段时，麦克莱恩正忙于松开微陨石碎片防护罩上的螺栓，为未来的工作做准备。

"With this year being the 25th anniversary of a continuous human presence in space, it seems fitting that we are continuing to upgrade the ISS to keep it alive through 2030," Ayers radioed to mission control after she was back inside the airlock. "We're honored to be a small part of a much larger team that facilitates the ground-breaking science that we perform on the national lab that is the International Space Station."

艾尔斯返回气闸舱后通过无线电向任务控制中心表示：“今年是人类连续驻留太空 25 周年，我们持续对国际空间站（ISS）进行升级以维持其运行至 2030 年，这似乎非常契合这一纪念时刻。我们很荣幸能成为这个庞大团队的一小部分，正是这个团队推动着我们在国际空间站这个国家实验室中开展的开创性科学研究。”

"What we accomplish here not only furthers our efforts to return to the moon and go on to Mars, but informs how we do life on Earth," said Ayers.

艾尔斯说：“我们在这里所取得的成就不仅推动我们重返月球并前往火星的努力，也为地球上的生活方式提供借鉴。”

This spacewalk was McClain's third and the first for Ayers. McClain has now logged a total of 18 hours and 52 minutes outside the space station.

此次太空行走是麦克莱恩的第三次太空行走，却是艾尔斯的第一次。目前，麦克莱恩累计在空间站外度过了 18 小时 52 分钟。

This was the 93rd EVA to be staged from the U.S. Quest airlock and the 275th overall in support of the assembly, maintenance and upgrade of the ISS, which has been continuously occupied by rotating astronaut crews since November 2000.

这是从美国 “探索” 气闸舱开展的第 93 次舱外活动（EVA），也是支持国际空间站（ISS）组装、维护和升级的第 275 次舱外活动。自 2000 年 11 月以来，国际空间站一直由轮换的宇航员乘组持续驻留。

The first all-female EVA was performed by NASA astronauts Christina Koch and Jessica Meir in October 2019. That duo conducted two more spacewalks together in January 2020, and NASA's Jasmin Moghbeli and Loral O'Hara did a walk of their own in November 2023.

首次全女性舱外活动（EVA）由美国国家航空航天局（NASA）宇航员克里斯蒂娜・科赫（Christina Koch）和杰西卡・迈尔（Jessica Meir）于 2019 年 10 月执行。这两位宇航员又在 2020 年 1 月共同完成了两次太空行走，而 NASA 的贾斯敏・莫格贝利（Jasmin Moghbeli）和洛拉尔・奥哈拉（Loral O'Hara）则于 2023 年 11 月完成了一次全女性太空行走。