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·搜一搜.cn/美宇航员完成约6个半小时太空行走

Astronauts Taking Spacewalk Outside ISS
美宇航员完成约6个半小时太空行走

美国航天局16日说,国际空间站两名美国宇航员当天完成一次约6个半小时的太空行走。
美国东部时间16日14时10分(北京时间17日2时10分),安德鲁·福伊斯特尔和里奇·阿诺德两人完成了太空行走,历时6小时31分钟。

据美航天局介绍,在太空行走过程中,两名宇航员将有如迷你冰箱大小的“泵流量控制组件”从空间站桁架上的零件平台移动到“德克斯特”机械臂上。“泵流量控制组件”能够驱动和控制空间站冷却系统外部的氨循环,主要用于冷却空间站上的电池。

此外,他们还更换了一台相机和“天地发射接收控制器”。
这是今年以来国际空间站上的第5次太空行走。截至目前,空间站宇航员们出舱太空行走总时间累计已达54天16小时40分钟。(完)新华社华盛顿5月16日电(记者周舟)


2018-05-17 10:48 | 中国搜索 美宇航员完成约6个半小时太空行走
http://toutiao.chinaso.com/zx/detail/20180517/1000200033137441526525297941695016_1.html

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Watch Live Now! Astronauts Taking Spacewalk Outside ISS


Space.com · 16h
Two NASA astronauts are taking a spacewalk outside the InternationalSpace Station today (May 16) to replace a failed pump flow control …

Space Station today (May 16) to replace a failed pump flow control …



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Watch Live Now! Astronauts Taking Spacewalk Outside ISS

By SPACE.com Staff | May 16, 2018 06:32am ET

Two NASA astronauts are taking a spacewalk outside the International Space Station today (May 16) to replace a failed pump flow control device in the outpost's cooling system. Astronauts Drew Feustel and Ricky Arnold are expected to spend at least 6.5 hours working outside the International Space Station. The spacewalk webcast will begin at 6:30 a.m. EDT (1030 GMT), with the spacewalk itself beginning at 8:10 a.m. EDT (1210 GMT). Watch it live here, courtesy of NASA TV.
From NASA's press release:
Two NASA astronauts are scheduled to venture outside the International Space Station for a pair of six-and-a-half-hour spacewalks May 16 and June 14. Experts from NASA will preview the work to be done during the spacewalks in a briefing at 2 p.m. EDT Tuesday, May 8, at NASA’s Johnson Space Center in Houston.
Live coverage of the briefing and spacewalks will air on NASA Television and the agency’s website.
Expedition 55 Flight Engineers Drew Feustel and Ricky Arnold will put on spacesuits for what will be the 210th and 211th spacewalks in support of station assembly, maintenance and upgrades. These spacewalks will be the eighth and ninth of Feustel’s career, and the fourth and fifth of Arnold’s. The primary objectives are to finish upgrading cooling system hardware and install new and updated communications equipment for future dockings of commercial crew spacecraft.
The first spacewalk will begin about 8:10 a.m. Wednesday, May 16. NASA TV coverage will begin at 6:30 a.m. Feustel and Arnold will move a component called a Pump Flow Control Subassembly (PFCS) from a spare parts platform on the station’s truss “backbone” to the Special Purpose Dexterous Manipulator (Dextre) robotic arm. The PFCS drives and controls the flow of ammonia through the exterior portions of the station’s cooling system. Robotics controllers on Earth will use Canadarm2 and Dextre to perform final installation on the port-side truss for checkout. The spacewalkers will remove a failed PFCS and return it to the spare parts depot. They’ll also replace a camera system on the Destiny Laboratory and a communications receiver. This also be the 50th spacewalk originating from the station’s Quest airlock. Other assembly and maintenance spacewalks have begun from space shuttle and Russian airlocks.
The second spacewalk is planned for Thursday, June 14, following the anticipated May 24 arrival of the Orbital ATK Cygnus cargo resupply spacecraft. The ninth Cygnus cargo mission is scheduled to launch May 20 from NASA’s Wallops Flight Facility in Virginia.
During the June 14 spacewalk, Arnold and Feustel will install a pair of brackets and high-definition cameras on the Harmony module that will help commercial crew vehicles align with the international docking adapter at the forward end of Harmony. The cameras also will provide wireless data network access for experiments and facilities mounted on the ESA (European Space Agency) Columbus laboratory and Japan Aerospace Exploration Agency Kibo laboratory. The crew also will replace a camera on the station’s starboard truss.
For more information about the International Space Station, its research and crew, visit:



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https://www.space.com/17933-nasa-television-webcasts-live-space-tv.html