?!DOCTYPE html> title 天宫一号今年将“受控”坠?残骸落入指定海域_华人资讯?/title> <meta name="keywords" content="天宫一号今年将“受控”坠?残骸落入指定海域"> <meta name="description" content="作为我国第一个目标飞行器,天宫一号在其太空旅途将尽之际再一次走近公众视野:前不久,部分外媒有关“天宫一号已失控并将撞向地球,对地面造成安全威胁”的说法一时间甚嚣尘上。我国多位航"> <meta name="filetype" content="0" /> <meta name="publishedtype" content="1" /> <meta name="pagetype" content="1" /> <meta name="catalogs" content="2193" /> <meta name="contentid" content="3937074"> <meta name="publishdate" content="2016-03-18"> <meta name="author" content="涓ユ?> <meta name="source" content="浜崕鏃舵姤"> <script type="text/javascript" src="/Scripts/jquery.js"></script> <link rel="stylesheet" href="/css/haha.css" type="text/css"> <base target="_blank" /> <body> <div id="mytopboxblock"> <script type="text/javascript" src="/scripts/cloudbase.js?sid=0&gid=0"></script> </div> <div id="wrapper"> <div id="HSCMS_ADVERT_JS1"></div> <div id="header"> <div id="nav" class="clearfix mb"> <div class="nav-link"> <a href="/" >首页</a> - <a href="/gs/">股市</a> - <a href="/sp/">食品</a> - <a href="/gj/">国际</a> - <a href="/jj/">基金</a> - <a href="/fczx/">房产资讯</a> - <a href="/jjdt/">经济动?/a> - <a href="/hyzx/">行业资讯</a> - <a href="/jd/">家电</a> - <a href="/ny/">能源</a> - <a href="/wh/">文化</a> - <a href="/kj/">科技</a> - <a href="/xwfb/">资讯发布</a> - <a href="/">论坛</a> - <a href="/">旅游</a> - <a href="/">消费</a> - <a href="/">财富</a> - <a href="/">健康</a> </div> <a href="/" class="nav-rss">rss</a> </div> </div> <div id="main" class="clearfix"> <div id="mainblock"> <div class="path clearfix"> <span class="crumb">当前位置: <a href="/">首页?/a> > <a target='_blank' href='http://www.222yake.com/kj/index.html'>科技</a> > 正文 </span> <span id="guanming" class="guanming"></span> </div> <div id="maincontent" class="box"> <span id="overtitle"></span> <div id="artilcetitle" class="title"> <h1>天宫一号今年将“受控”坠?残骸落入指定海域</h1> </div> <div class="subtitle"><span></span></div> <span id="undertitle"></span> <div class="info"> <span id="pubtime_baidu" class="pubdate">时间?018-07-24</span> <span id="source_baidu" class="source">来源:互联网</span> </div> <div id="articlecontent" class="news"> <input type="hidden" id="CLOUDSID" value="0" /> <input type="hidden" id="CLOUDGID" value="0" /> <p>作为我国第一个目标飞行器,天宫一号在其太空旅途将尽之际再一次走近公众视野:前不久,部分外媒有关“天宫一号已失控并将撞向地球,对地面造成安全威胁”的说法一时间甚嚣尘上。我国多位航天专家对此回应道:天宫一号一?ldquo;受控”坠落,剩余残骸将落入指定海域,不会危害地面?/p><p>提起天宫一号,中国人并不陌生,2011??9日该飞行器发射升空,标志着我国迈入载人航天工程“三步?rdquo;战略的第二步第二阶段,换言之,这标志着我国已经拥有建立初步空间站,即短期无人照料的空间站的能力?/p><p>˲Ʊҳ此后3年里,天宫一号先后与神舟八号、神舟九号、神舟十号飞船交会对接,系统验证了自动交会对接、人?手动交会对接等关键支撑技术,让我国成为世界上第三个自主掌握空间交会对接技术的国家?016??6日,这个战功赫赫?ldquo;中国?rdquo;全面完成使命,正式终止数据服务。当时就有天宫一号坠落将产生安全威胁的说法?016?月,在天宫二号发射升空之际,中国载人航天工程新闻发言人、载人航天工程办公室副主任武平对此回?mdash;—</p><p>天宫一号运行轨道仍在持续、密切的跟踪监视之中,平均轨道高度约370公里,而且正以每天100米的速度衰减,在寿命末期,将主动离轨,陨落南太平洋?/p><p>这种“跟踪监视”持续至今,并通过中国载人航天工程办公室官方网站对外发?ldquo;天宫一号目标飞行器轨道状态每周公?rdquo;。最近一次的公告提到?017?2?7日至12?4日,天宫一号运行在平均高度?86.5公里的轨道上,姿态稳定,形态未发生异常?/p><p>航天科技集团五院空间实验室系统总设计师朱枞鹏近日在接受媒体采访时也提到,我国一直在监控天宫一号,他还透露,预计在今年上半年让它坠落。其坠入大气层后就会烧毁,剩余残骸将落入指定海域,不会危害地面?/p><p>事实上,让航天器受控坠落有其国际惯例。航天专家庞之浩表示,运行在近地轨道的大型航天器退役后,国际通行的做法是让其受控坠落到南太平洋一处远离大陆的深海区,那里被称?ldquo;航天器坟?rdquo;。俄罗斯的和平号空间站、进步号系列飞船,美国的康普顿伽马射线望远镜等都坠落于此?/p><p>不同的是,天宫一号重量仅?.5吨,相比20吨级的和平号空间站等体量小不少,庞之浩说,只要燃烧充分,不会留下太多残骸?/p><p>按照武平此前的说法,经分析,天宫一号大部分结构部件将在陨落过程中烧蚀销毁,对航空活动以及地面造成危害的概率很低,可能性极小?/p><p>˲Ʊҳ她还提到,自2000年起,我国就开始实施空间碎片专项计划,在空间监测、防护、预警、减缓及应急合作等方面做了大量工作,这些举措都表明了我国对于空间碎片问题的高度重视及行动决心?中国青年?middot;中青在线记?邱晨?</p> <div id="HSCMS_ADVERT_JS3"></div> </div>> <div> <a>上一篇: <A ID='PERLINK' SIZE='20' HREF='http://www.222yake.com/kj/20180724/51040.html'>广东创新创业经验:众创空?孵化?加?/A></a> <a>下一篇:<A ID='NEXTLINK' SIZE='20' HREF='http://www.222yake.com/kj/20180724/51053.html'>违反生活饮用水条?北京燕山翔宇环保工程</A></a> </div> </div> <div class="box aboutlink"> <div class="boxtitle">相关链接</div> <div class="boxcontent"> <ul class="txtbox"> <li><a href="http://www.222yake.com/" target="_blank" title="天宫一号今年将“受控”坠?残骸落入指定海域">天宫一号今年将“受控”坠?残骸落入指定海域</a> <span>2018-07-24</span></li> <li><a href="http://www.222yake.com/sp/20180724/51051.html" target="_blank" title="眼药水不能乱?>眼药水不能乱?/a> <span>2018-07-24</span></li> <li><a href="http://www.222yake.com/jd/20180724/51050.html" target="_blank" title="珠海银隆进入IPO辅导?加速扩充产?>珠海银隆进入IPO辅导?加速扩充产?/a> <span>2018-07-24</span></li> <li><a href="http://www.222yake.com/jd/20180724/51049.html" target="_blank" title="AlphaGO迭代 人机围棋对决迎“终章?>AlphaGO迭代 人机围棋对决迎“终章?/a> <span>2018-07-24</span></li> </ul> </div> </div> <div class="clearfix two"> <div class="box fl"> <div class="boxtitle">消费资讯</div> <div class="zx"> <ul class="picbox clearfix"> <li><a href="/"><img src="/images/xiongliying_20160309172030_0.jpg" alt="长沙最全赏樱地? 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