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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.彩娱乐专线
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.
此役，科内利亚诺女排并未让比赛的悬念持续太久，虽然米兰队此战发挥相当出色，艾格努手感回春展现了极强的攻击力，但是科内利亚诺的统治力更强，她们干脆利落连下三局赢得胜利，将这场意义上提前进行的决赛演绎得行云流水。我们先说一说渤海银行对海滩的这一场半决赛。首局，天津队一上来就气势如虹，奠定了5分的领先优势。尤其是在防守端，天津女排展现出了超强的韧劲，彩娱乐登陆网址让乌贝兰迪亚海滩一筹莫展。局末阶段，巴西队连续得分，将分差迫近。在浪费了两个局点后，天津女排没有再给对手机会，随着王艺竹的一记重扣得分，天津女排以25比23拿下首局。第二局，天津队开局遇到一些困难，乌贝兰迪亚海滩打出一波进攻高潮，以6比1领先，天津队率先叫了暂停。
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, gather data on space motion sickness彩娱乐专线, and better characterize flight-associated injury risks, according to NASA. ■