美国报废卫星今日将撞击地球 落点尚不确定
<p>正在向地球袭来的美国失控卫星预计将于9月23日下午坠地。英媒报道称，这枚与大巴大小相似的卫星可能坠落于地球任何地方，而人类的预警时间只有20秒。它向地球进行的速度是每秒8公里，预计其碎片将散落于直径为800公里的区域内。</p><p><span word="A">A</span> <span word="defunct">defunct</span> <span word="U">U</span>.<span word="S">S</span>. <span word="satellite">satellite</span> <span word="is">is</span> <span word="expected">expected</span> <span word="to">to</span> <span word="crash">crash</span> <span word="down">down</span> <span word="to">to</span> <span word="Earth">Earth</span> <span word="Friday">Friday</span>, <span word="with">with</span> <span word="nobody">nobody</span> <span word="knowing">knowing</span> <span word="where">where</span> <span word="or">or</span> <span word="when">when</span> <span word="exactly">exactly</span> <span word="it">it</span> <span word="will">will</span> <span word="hit">hit</span>. <span word="This">This</span> <span word="was">was</span> <span word="unavoidable">unavoidable</span>, <span word="a">a</span> <span word="Chinese">Chinese</span> <span word="expert">expert</span> <span word="said">said</span> <span word="Thursday">Thursday</span>.</p><p>一颗美国报废卫星将会在周五撞击地球，然而却没有知道这枚卫星具体会在哪里着陆。这是难以避免的——中国专家周四表示。</p><p><span word="Pang">Pang</span> <span word="Zhihao">Zhihao</span>, <span word="a">a</span> <span word="researcher">researcher</span> <span word="from">from</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="Research">Research</span> <span word="Institute">Institute</span> <span word="of">of</span> <span word="Space">Space</span> <span word="Technology">Technology</span>, <span word="told">told</span> <span word="Xinhua">Xinhua</span> <span word="that">that</span> <span word="the">the</span> <span word="crash">crash</span> <span word="could">could</span> <span word="have">have</span> <span word="been">been</span> <span word="avoided">avoided</span> <span word="had">had</span> <span word="the">the</span> <span word="satellite">satellite</span> <span word="been">been</span> <span word="put">put</span> <span word="into">into</span> <span word="a">a</span> <span word="higher">higher</span> <span word="orbit">orbit</span>, <span word="or">or</span> <span word="manipulated">manipulated</span> <span word="to">to</span> <span word="drop">drop</span> <span word="in">in</span> <span word="the">the</span> <span word="South">South</span> <span word="Pacific">Pacific</span> <span word="when">when</span> <span word="it">it</span> <span word="had">had</span> <span word="abundant">abundant</span> <span word="fuel">fuel</span>. <span word="It">It</span> <span word="would">would</span> <span word="pose">pose</span> <span word="no">no</span> <span word="threat">threat</span> <span word="to">to</span> <span word="Earth">Earth</span> <span word="if">if</span> <span word="these">these</span> <span word="measures">measures</span> <span word="had">had</span> <span word="been">been</span> <span word="taken">taken</span>.</p><p>中国空间技术研究院研究员庞之浩在接受新华社记者专访时说，此次卫星撞地球的麻烦本来可以避免。假使在燃料充足时，将卫星引导到不易坠落的更高轨道，或是操控它坠入南太平洋的航天器“坟场”，就不会有今天对地球的威胁了。</p><p><span word="The">The</span> <span word="satellite">satellite</span> <span word="was">was</span> <span word="deactivated">deactivated</span> <span word="in">in</span> 2005 <span word="as">as</span> <span word="it">it</span> <span word="ran">ran</span> <span word="out">out</span> <span word="of">of</span> <span word="fuel">fuel</span> <span word="and">and</span> <span word="was">was</span> <span word="left">left</span> <span word="orbiting">orbiting</span> <span word="Earth">Earth</span> <span word="like">like</span> <span word="a">a</span> <span word="big">big</span> <span word="piece">piece</span> <span word="of">of</span> <span word="space">space</span> <span word="junk">junk</span>.</p><p>这颗卫星于2005年由于燃油耗尽报废，并像一大块宇宙垃圾一样被扔在了飞行轨道上。</p>
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