<blockquote id="pl83f"><p id="pl83f"></p></blockquote>
<s id="pl83f"><li id="pl83f"></li></s>

      
      
      <sub id="pl83f"><rt id="pl83f"></rt></sub>

        <blockquote id="pl83f"><p id="pl83f"></p></blockquote>
        <sub id="pl83f"><rt id="pl83f"></rt></sub>
        女人的天堂av在线播放,3d动漫精品一区二区三区,伦精品一区二区三区视频,国产成人av在线影院无毒,亚洲成av人片天堂网老年人,最新国产精品剧情在线ss,视频一区无码中出在线,无码国产精品久久一区免费

        Launch of Boeing-built spacecraft delayed: NASA

        Source: Xinhua| 2019-04-04 03:34:36|Editor: Yurou
        Video PlayerClose

        WASHINGTON, April (Xinhua) -- The U.S. space agency NASA announced on Wednesday that the first unmanned test flight of Boeing's Starliner spacecraft would be delayed from April to August, and it was only "a working date" yet to be confirmed.

        NASA cited limited launch windows in April and May and a U.S. Air Force launch in June on the launchpad by which Starliner is expected to be lifted off as reasons for the adjustment.

        The spacecraft's flight with astronauts on board is now targeted for late 2019, again to be confirmed later, according to NASA. The schedule for this manned flight is previously targeted at August.

        NASA also said the duration of Starliner's first manned test flight to the International Space Station will be extended but did not say how long the crew would stay on the space lab.

        "NASA's assessment of extending the mission was found to be technically achievable without compromising the safety of the crew," said Phil McAlister, director of the commercial spaceflight division at NASA Headquarters. The agency did not say how many months the crew would stay on station.

        The extended duration test flight offers NASA the opportunity to complete additional microgravity research, maintenance, and other activities while Boeing's Starliner is docked to station, according to NASA.

        NASA also contracted Boeing to develop its new heavy-lift rocket Space Launch System (SLS), critical to its plan to land astronauts on the Moon by 2024. The SLS development is again delayed, casting shadow on the country's "aggressive" plan for deep space exploration.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001379476991
        主站蜘蛛池模板: 午夜精品一区二区三区成人| 欧洲熟妇精品视频| 九九在线精品国产| 蜜桃视频成人专区在线观看| 玖玖在线精品免费视频| 亚洲综合精品第一页| 国产啪视频免费观看视频| 国产精品黄色片| 久草国产手机视频在线观看 | 久久天天躁狠狠躁夜夜2020老熟妇 | 制服丝袜另类专区制服| 国产精品自拍实拍在线看| 日韩丝袜欧美人妻制服| 人人人妻人人澡人人爽欧洲一区| 天堂网av成人在线观看| 亚洲国产成人无码av在线影院| 99久久精品免费看国产电影| 亚洲色大成成人网站久久| 国产一区二区三区色成人 | 少妇特黄a一区二区三区| 国产无套护士在线观看| 试看120秒做受| 亚洲中文字幕精品第一页| 亚洲一区二区成人| 日韩福利片午夜免费观着| 国内自拍小视频在线看 | 久久精品人人做人人爽电影蜜月| 久久精品国产福利一区二区| 国产美女遭强高潮网站| 婷婷久久综合九色综合88| 骚虎视频在线观看| 国产亚洲欧洲AⅤ综合一区| AV在线亚洲欧洲日产一区二区| 亚洲午夜成人精品无码app| 精品国产成人亚洲午夜福利 | 无码国产精品一区二区VR老人| 一本大道香蕉中文日本不卡高清二区| 最新国产AV最新国产在钱| 果冻传媒一二三产品| 极品少妇小泬50pthepon| 亚洲の无码国产の无码步美|