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中国发射任务从月球带回材料 - kafa88 - 11-28-2020 中国周二发起了一项雄心勃勃的任务，目的是将岩石和碎片从月球表面带回，这是40年来的首次。这项工作可以增进人类对月球和太阳系的更广泛的了解。娥五号-以中国月亮女神而命名-是该国迄今为止最大胆的登月任务。如果成功，那将是中国航天计划的一项重大进展，一些专家表示，这可能为从火星甚至载人登月飞行任务中带回样品铺平道路。娥五号飞船的四个模块在下午3:30左右爆炸。美国东部标准时间周一，在来自文昌发射中心的大型长征5Y火箭上，沿着南岛省份海南沿海。升空几分钟后，航天器脱离了火箭的第一和第二级，滑入了月球转移轨道。这次发射是由国家广播公司CCTV直播的，然后转为计算机动画以显示其向太空的进展。通常由机密的政府此前仅确认发射会在11月下旬进行。航天器通常需要三天才能到达月球。据美国宇航局称，该任务的关键任务是在月球表面以下2米（近7英尺）处钻探，并挖出约2千克（4.4磅）的岩石和其他碎片带回地球。自从1960年代和1970年代的美国和俄罗斯任务以来，这将为科学家提供第一个机会来研究新近获得的月球物质。 Chang娥五号着陆器在月球上的飞行时间原定短暂而甜蜜。由于它缺少能承受月球冰冻夜晚的放射性同位素加热装置，因此只能停留在一个阴历日或大约14个地球日。着陆器将用钻头和机械臂挖掘物料，并将其转移到所谓的上升器上，该上升器将从月球升起并与服务舱对接。然后将物料移至返回舱，然后将其拖回地球。美国海军战争学院的太空专家琼·约翰逊·弗里斯说，e娥五号的技术复杂性由四个部分组成，使其“在许多方面都非常引人注目”。她说：“中国显示出自己有能力开发和成功实施持续的高科技计划，这对于区域影响力和潜在的全球伙伴关系至关重要。哈佛-史密森天体物理学中心的天文学家乔纳森·麦克道威尔说，特别是从太空中收集样本的能力的价值正在提高。他说，其他计划从小行星甚至火星上取材的国家可能会借鉴中国的经验。麦克道尔说，虽然这次任务“确实具有挑战性”，但中国已经通过Chang娥三号和Chang娥四号两次登陆月球，slot 并在2014年的Chang娥5试飞任务中表明它可以导航回地球，重新进入并降落胶囊。剩下的就是表明它可以收集样本并再次从月球起飞。 推荐的 因此，我对中国可以实现这一目标感到非常乐观。”他说自2003年首次载人进入太空以来，这项任务是中国进行的最大胆的一次任务，成为仅次于美国和俄罗斯的第三个这样做的国家。尽管中国在载人航天方面取得的许多成就（包括建立实验性空间站和进行太空行走）重现了过去几年中其他国家的成就，但中国国家航天局现在正在向新的领域发展。娥四号-大约两年前首次在月球上进行了相对未开发的较远侧面的首次软着陆-目前正在收集月球表面辐射暴露的完整测量值，这对计划将宇航员送往月球的任何国家来说都是至关重要的信息。7月，中国成为发射火星任务的三个国家之一，在中国，这是一个轨道飞行器和一个漫游者，它们将在红色星球上寻找水的迹象。 CNSA说，天文一号飞船正准备在二月左右到达火星。中国越来越多地与外国进行飞行任务，欧洲航天局将为Chang娥五号提供重要的地面站信息。 但是，美国法律仍然禁止与美国国家航空航天局（NASA）进行大多数合作，但中国不愿与国际空间站合作。这促使中国开始在自己的空间站上开展工作，并启动了自己的计划，使其在与日本和印度的竞争中处于稳步竞争之中，这些亚洲国家寻求在太空领域取得新成就。中国的太空计划进展谨慎，近年来受到的挫折相对较少。用于当前发射的火箭在先前的发射尝试中失败了，但此后的表现没有出现故障，包括发射了Chang娥四号。Freese-Johnson说：“中国的工作非常增量，为各种任务开发了可长期使用的构件。”中国的一党专制制度专家说，尽管美国紧随中国的成功，但由于政治上的怀疑，日益激烈的军事竞争以及对中国盗窃技术的指控，它不太可能扩大与中国在太空的合作。约翰逊·弗里瑟说：“美国在太空合作方面的政策变化在短期内不太可能引起政府的广泛关注。 resume words coordinate - 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