欧美精品在线第一页,久久av影院,午夜视频在线播放一三,久久91精品久久久久久秒播,成人一区三区,久久综合狠狠综合久久狠狠色综合,成人av一区二区亚洲精,欧美a级在线观看

        NASA seeks partnership with U.S. industry to develop first Gateway element

        Source: Xinhua| 2018-06-25 06:41:28|Editor: Mu Xuequan
        Video PlayerClose

        LOS ANGELES, June 24 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) released a draft solicitation through a Broad Agency Announcement (BAA) this week, seeking partnership for the first element of the Gateway, which will become the orbital outpost for robotic and human exploration operations in deep space.

        As part of the agency's Exploration Campaign, Gateway will support exploration on and near the Moon, and beyond, including Mars. The draft BAA is the first call from NASA to U.S. industry to acquire an element for the Gateway.

        The U.S. space agency is seeking a high-power, 50-kW solar electric propulsion (SEP) spacecraft to maintain the Gateway's position as well as move it between lunar orbits as needed. It will also provide power to the rest of the Gateway, controls and communications.

        "The power and propulsion element will be an anchor for Lunar exploration," James Reuter, Acting Associate Administrator for NASA Space Technology Mission Directorate (STMD), told Xinhua last month.

        The power and propulsion element is also expected to enable high-rate, reliable communications between Earth and deep space, which will be important during deep space spacewalks, human exploration of the lunar surface, and more, said NASA.

        Gateway assembly is targeted to begin in 2022, with the launch of the power and propulsion element on a partner-provided commercial rocket.

        Following this test lasting up to one-year in space after launch, the space agency will have the option to acquire the spacecraft for use as the first element of the Gateway in lunar orbit.

        "We believe partnering with U.S. industry for the power and propulsion element will stimulate advancements in commercial use of solar electric propulsion and also serve NASA exploration objectives," Michele Gates, director, Power and Propulsion Element at NASA, said in a statement. "Our goal here is to gain input from industry on the draft solicitation to enable release of the final later this summer."

        NASA is returning to the Moon with commercial and international partners as part of an overall agency Exploration Campaign in support of Space Policy Directive 1.

        Most recently, the agency issued a Request for Information to better understand how U.S. industry would use or enhance the Gateway to support a growing space economy.

        In addition to the draft BAA, NASA will host an industry day on July 10 prior to issuing the final BAA. Through this upcoming solicitation, industry will be asked to participate in a public/private partnership, which includes a flight demonstration of the power and propulsion spacecraft.

        Last December, U.S. President Donald Trump signed his administration's first space policy directive, formally directing the U.S. space agency NASA to send astronauts back to the moon and eventually Mars.

        The Space Policy Directive 1, as it's called, was based on recommendations of the National Space Council, which Trump directed to reestablish last June to advise and help implement his space policy with exploration as a national priority.

        The council was first created in 1989 during the administration of President George HW Bush but later disbanded in 1993 under President Bill Clinton.

        It marked a return to the vision of President George W. Bush, whose Constellation program aimed to return astronauts to the moon by 2020 and then go on to Mars.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011105091372781331
        主站蜘蛛池模板: 午夜影院色| 国产欧美一区二区三区四区| 国产欧美久久一区二区三区| 强制中出し~大桥未久4| 精品国产品香蕉在线| 亚洲一区二区福利视频| 狠狠色狠狠色综合婷婷tag| 欧美极品少妇xxxxⅹ| 91精品中综合久久久婷婷| 久久一级精品视频| 亚洲精品国产主播一区| 国产精品第56页| 国产性生交xxxxx免费| 久久国产精久久精产国| 一区二区在线不卡| 狠狠色噜噜狼狼狼色综合久| 国产欧美一区二区三区沐欲| 国产韩国精品一区二区三区| 国产高潮国产高潮久久久91| 中文字幕视频一区二区| 在线观看欧美日韩国产| 精品国精品国产自在久不卡| 欧美一级不卡| 欧美乱大交xxxxx胶衣| 亚洲精品无吗| 91久久综合亚洲鲁鲁五月天| 麻豆天堂网| 日韩亚洲欧美一区| 一级久久久| 国产一区二区国产| 日韩a一级欧美一级在线播放| 日韩精品一二区| 久久久久久国产精品免费| 国产亚洲精品久久网站| 日韩欧美一区二区久久婷婷| 精品国产乱码一区二区三区在线| 欧美精品免费一区二区| 一二三区欧美| 艳妇荡乳欲伦2| 久久99久久99精品免观看软件| 久久99久久99精品蜜柚传媒| 久久国产精久久精产国| 91精品国产综合久久国产大片| 在线精品国产一区二区三区| 亚洲精品456| 日韩精品少妇一区二区在线看| 精品一区二区三区视频?| 国产精品6699| 国产精品爽到爆呻吟高潮不挺| 色婷婷久久一区二区三区麻豆| 狠狠色噜噜狠狠狠狠综合久| 国精产品一二四区在线看| 夜夜夜夜曰天天天天拍国产| 淫片免费看| 国产一区二区午夜| 国产馆一区二区| 亚洲国产精品一区二区久久hs| 激情久久久| 国产欧美精品va在线观看| 年轻bbwbbw高潮| 国产高清一区二区在线观看| 精品久久国产视频| 国产日产高清欧美一区二区三区| 日本一区二区三区四区高清视频| 国产性猛交xx乱| 狠狠色很很在鲁视频| 国产精品国产三级国产专区53| 国产日韩欧美91| 国产99久久九九精品免费| 午夜色影院| 国产日韩欧美一区二区在线观看| bbbbb女女女女女bbbbb国产| 狠狠色丁香久久婷婷综合_中| 国产麻豆精品一区二区| 国产国产精品久久久久| 996久久国产精品线观看| 国产在线一区不卡| 91av中文字幕| 日韩中文字幕在线一区二区| 欧美激情片一区二区| 亚洲欧美色图在线| 亚洲欧美精品suv| 午夜激情影院| 狠狠色噜噜狼狼狼色综合久| 91精品国模一区二区三区| 理论片高清免费理伦片| 日韩不卡毛片| 国产精品剧情一区二区三区| 国产精品一区二区毛茸茸| 午夜剧场一区| 午夜精品一区二区三区在线播放| 免费超级乱淫视频播放| 国产毛片精品一区二区| 国产美女三级无套内谢| 中文字幕一区三区| 久久国产精彩视频| 一区二区国产盗摄色噜噜| 国产麻豆一区二区三区精品| 国产精品一二三区免费| 日韩欧美国产第一页| 狠狠色噜噜狠狠狠888奇米| 国产精品九九九九九九九| 国产精品日产欧美久久久久| 99国产超薄丝袜足j在线观看| 美女张开腿黄网站免费| 国产精品videossex国产高清| 大bbw大bbw巨大bbb| 国产一区二区高潮| 久久国产精品广西柳州门| 午夜国产一区二区| 午夜爽爽爽男女免费观看| 国产精品尤物麻豆一区二区三区| 国产欧美一区二区在线观看| 欧美一区二区三区四区在线观看| 精品国产亚洲一区二区三区| 亚洲一二区在线观看| 欧美精品一区二区三区视频| 88888888国产一区二区| 欧美一区二区三区久久久| 中文字幕日韩精品在线| 国产精品久久亚洲7777| 日本免费电影一区二区| 99视频国产精品| 久久综合国产精品| 色婷婷综合久久久久中文| 99国产午夜精品一区二区天美| 亚洲国产精品一区二区久久hs| 大伊人av| 国内偷拍一区| 国产欧美精品va在线观看| 91高清一区| 国产免费一区二区三区四区| 亚洲女人av久久天堂| 精品国产一二三四区| 99热一区二区| 999久久久国产| 亚洲日本国产精品| 日韩av在线免费电影| 91精品一区| 欧美国产精品久久| 国产精品5区| 一二三区欧美| 91久久综合亚洲鲁鲁五月天| 国产精品久久久不卡| 日本一区二区在线电影| 精品国产伦一区二区三区免费| 欧美一区二区三区久久综合| 国产欧美日韩中文字幕| 亚洲**毛茸茸| 国产色99| 欧美高清性xxxxhdvideos| 狠狠色综合久久婷婷色天使| 久久九九国产精品| 精品国产一区在线| 国产91视频一区二区| 2023国产精品自产拍在线观看| 国产91综合一区在线观看| 91国产在线看| 国产精品美女久久久免费| 精品国产一区二区三区四区vr| 国产极品一区二区三区| 国产一区在线精品| 久久96国产精品久久99软件| 窝窝午夜理伦免费影院| 亚洲精品456在线播放 | 国产第一区二区| 99久久国产免费| 午夜精品一区二区三区三上悠亚| 国产精品一二三区免费| 午夜一区二区视频| 男女无遮挡xx00动态图120秒| 2020国产精品自拍| 亚洲精品乱码久久久久久高潮| 99热久久精品免费精品| 亚欧精品在线观看| 国产欧美日韩精品一区二区图片| 欧美日韩亚洲国产一区| 窝窝午夜精品一区二区| 国产精品一区二区三| 国内少妇偷人精品视频免费| 欧美一区二区三区免费播放视频了| 丰满岳乱妇在线观看中字| 国产在线观看免费麻豆| 中文字幕一区二区在线播放| 国产69精品久久久久app下载| 日韩欧美激情| 国产农村妇女精品一二区| 日韩精品一区在线观看| 素人av在线| 福利片午夜| 99国产精品丝袜久久久久久| 日韩av片无码一区二区不卡电影| 国产欧美一区二区精品久久| 狠狠色狠狠色综合久久第一次| 欧美日韩综合一区二区| 精品国产免费一区二区三区| 国产天堂一区二区三区| 三级视频一区| 亚洲国产视频一区二区三区| 免费毛片**| 午夜av电影院| 欧美一区视频观看| 色综合久久精品| 国产日韩欧美精品| 国产一区二区三区在线电影| 国产亚洲精品久久久久久久久动漫| 国产欧美一区二区三区不卡高清| 亚洲精品欧美精品日韩精品| 国产精品无码永久免费888| 99爱精品在线| 少妇厨房与子伦免费观看| 91精品黄色| 国产一区二区在线观看免费| 午夜性电影| 性色av色香蕉一区二区| 久久三级精品| 国产1区2区视频| 国产精品久久久久久久久久久不卡| www.午夜av| 亚洲女人av久久天堂| 精品国产免费久久| 午夜剧场一区| **毛片在线免费观看| 久久精品麻豆| 日韩精品1区2区3区| 国91精品久久久久9999不卡| 国产综合久久精品| 亚洲国产精品网站| 99久久婷婷国产亚洲终合精品| 日韩精品中文字幕一区二区三区| 久久人人爽爽| 精品欧美一区二区在线观看| 久久乐国产精品| 国产日韩欧美第一页| 国产精品一区二区在线看| 91九色精品| 久久99久久99精品免观看软件 | 欧美日韩卡一卡二| 一区二区三区欧美精品| 国产一区三区四区| 福利片91| 激情久久一区二区三区| 久久久久亚洲国产精品| 日本高清h色视频在线观看| 日本三级香港三级| 国产原创一区二区|