管理系统开发公司 U.S. astronauts complete first commercial spacewalk
发布日期：2024-11-02 11:33 点击次数：136
Two astronauts of the four-member all-civilian crew wore the SpaceX newly-designed extravehicular activity suits for the spacewalk at 732.2 km above Earth.管理系统开发公司
NEW YORK, Sept. 12 (Xinhua) -- The crew of U.S. Polaris Dawn mission completed a spacewalk on Thursday, marking the first time commercial astronauts have space-walked from a commercial spacecraft, according to SpaceX.
The 106-minute spacewalk officially began at 6:12 a.m. Eastern Time (1012 GMT) when suit pressurization started, nitrogen purge was initiated, and pure oxygen was flowing into the suits.
Two astronauts of the four-member all-civilian crew wore the SpaceX newly-designed extravehicular activity suits for the spacewalk at 732.2 km above Earth.
The two astronauts are American billionaire entrepreneur and Mission Commander Jared Isaacman, and SpaceX engineer and Mission Specialist Sarah Gillis.
Jared and Gillis separately exited the spacecraft and individually performed a series of suit mobility demonstrations to test the performance of the spacesuit in the vacuum environment of space.
The other two astronauts, Mission Pilot Kidd Poteet and Mission Specialist Anna Menon, remained seated, managing suit umbilicals and monitoring vital support systems and telemetry on Dragon's displays.
本届欧洲杯整体乏善可陈，观赏性并不强，但西班牙是个例外，小组赛三战全胜，且一球未失，随后大胜格鲁吉亚、淘汰东道主德国，无疑是本届欧洲杯表现最为出彩的球队，据统计，单届欧洲杯前五场全胜的球队（84年法国、21意大利），最后都获得了冠军，管理系统开发价格西班牙距离决赛只有一步之遥，自然希望延续这一记录。不过需要注意的是，在对阵德国的比赛中，德佩里开场不到10分钟就扭伤了左膝，已经确定将缺席剩余的比赛，两名后卫勒诺尔芒和卡瓦哈尔双双被禁赛，本场后防将面临巨大的压力。主教练德拉富恩特赛前表示：“我们缺少三名重要的球员，我们知道该如何应对，我们已经准备好了。”
Isaacman and Gillis each spent several minutes outside the capsule. The spacewalk ended at about 7:58 a.m. (1158 GMT).
Upon completion of their individual extravehicular activities, the hatch was closed, Dragon re-pressurized and cabin oxygen and pressure levels confirmed, officially completing the suit testing alongside the first commercial spacewalk and the first spacewalk from a Dragon spacecraft, according to SpaceX.
SpaceX launched the new fully-commercial human spaceflight mission on a Dragon spacecraft from NASA's Kennedy Space Center in Florida on Tuesday.
The spacecraft traveled to a distance of 1,400 km above Earth on Wednesday -- the farthest humans have traveled since the Apollo program over 50 years ago, according to SpaceX.
The crew are also scheduled to conduct science during their multi-day mission to orbit, including essential health and human performance research for NASA's Human Research Program.
The research will help NASA scientists better understand how exposure to space conditions affects the human body. The crew will test new medical approaches and technology on telemedicine capabilities管理系统开发公司, gather data on space motion sickness, and better characterize flight-associated injury risks, according to NASA. ■