俄卫星发生史上首次太空相撞
<p><span word="The">The</span> <span word="US">US</span> <span word="Military">Military</span> <span word="and">and</span> <span word="Iridium">Iridium</span> <span word="Satellite">Satellite</span> <span word="LLC">LLC</span> <span word="both">both</span> <span word="confirmed">confirmed</span> <span word="that">that</span> <span word="according">according</span> <span word="to">to</span> <span word="US">US</span> <span word="East">East</span> <span word="Coast">Coast</span> <span word="time">time</span> <span word="at">at</span> 11:55 <span word="a">a</span>.<span word="m">m</span>. <span word="on">on</span> 10<span word="th">th</span> <span word="a">a</span> <span word="commercial">commercial</span> <span word="Iridium">Iridium</span> <span word="communications">communications</span> <span word="satellite">satellite</span> <span word="collided">collided</span> <span word="with">with</span> <span word="a">a</span> <span word="defunct">defunct</span> <span word="Russian">Russian</span> <span word="military">military</span> <span word="communication">communication</span> <span word="satellite">satellite</span> <span word="over">over</span> <span word="northern">northern</span> <span word="Siberia">Siberia</span>. <span word="It">It</span> <span word="is">is</span> <span word="the">the</span> <span word="first">first</span>-<span word="ever">ever</span> <span word="crash">crash</span> <span word="for">for</span> <span word="two">two</span> <span word="big">big</span> <span word="communications">communications</span> <span word="satellites">satellites</span> <span word="in">in</span> <span word="the">the</span> <span word="history">history</span> <span word="of">of</span> <span word="human">human</span> <span word="space">space</span>.</p><p><span word="Of">Of</span> <span word="these">these</span> <span word="two">two</span> <span word="satellites">satellites</span> <span word="one">one</span> <span word="is">is</span> <span word="the">the</span> <span word="US">US</span> <span word="commercial">commercial</span> <span word="satellite">satellite</span> <span word="launched">launched</span> <span word="in">in</span> 1997 <span word="the">the</span> <span word="other">other</span> <span word="is">is</span> <span word="the">the</span> <span word="Russian">Russian</span> <span word="satellite">satellite</span> <span word="put">put</span> <span word="into">into</span> <span word="orbit">orbit</span> <span word="in">in</span> 1993 <span word="the">the</span> <span word="latter">latter</span> <span word="one">one</span> <span word="has">has</span> <span word="already">already</span> <span word="abandoned">abandoned</span>.<span word="The">The</span> <span word="spokesman">spokesman</span> <span word="of">of</span> <span word="the">the</span> <span word="NASA">NASA</span> <span word="said">said</span> <span word="the">the</span> <span word="crash">crash</span> <span word="has">has</span> <span word="left">left</span> <span word="a">a</span> <span word="large">large</span> <span word="number">number</span> <span word="of">of</span> <span word="debris">debris</span> <span word="drifting">drifting</span> <span word="in">in</span> <span word="space">space</span> <span word="which">which</span> <span word="might">might</span> <span word="pose">pose</span> <span word="a">a</span> <span word="slight">slight</span> <span word="risk">risk</span> <span word="to">to</span> <span word="the">the</span> <span word="International">International</span> <span word="Space">Space</span> <span word="Station">Station</span>.</p><p>美国军方和美国<span word="LLC">LLC</span>铱星公司12日均确认，美国东部时间10日上午11时55分，美国铱卫星<span word="LLC">LLC</span>公司的一颗商用通信卫星与一颗已经报废的俄罗斯军用通信卫星10日在西伯利亚北部上空相撞，这是人类太空史上首次发生两颗大型卫星相撞事件。</p><p><span word="The">The</span> <span word="U">U</span>.<span word="S">S</span>. <span word="military">military</span> <span word="and">and</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="LLC">LLC</span> <span word="Iridium">Iridium</span> <span word="satellite">satellite</span> <span word="company">company</span> <span word="confirmed">confirmed</span> <span word="on">on</span> <span word="the">the</span> 12<span word="th">th</span> <span word="that">that</span> <span word="at">at</span> 11:55 <span word="a">a</span>.<span word="m">m</span>. <span word="EDT">EDT</span> <span word="on">on</span> <span word="the">the</span> 10<span word="th">th</span>, <span word="a">a</span> <span word="commercial">commercial</span> <span word="communication">communication</span> <span word="satellite">satellite</span> <span word="of">of</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="Iridium">Iridium</span> <span word="satellite">satellite</span> <span word="company">company</span> <span word="collided">collided</span> <span word="with">with</span> <span word="a">a</span> <span word="scrapped">scrapped</span> <span word="Russian">Russian</span> <span word="military">military</span> <span word="communication">communication</span> <span word="satellite">satellite</span> <span word="over">over</span> <span word="northern">northern</span> <span word="Siberia">Siberia</span> <span word="on">on</span> <span word="the">the</span> 10<span word="th">th</span>, <span word="which">which</span> <span word="was">was</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span> <span word="that">that</span> <span word="two">two</span> <span word="large">large</span> <span word="satellites">satellites</span> <span word="collided">collided</span> <span word="in">in</span> <span word="the">the</span> <span word="history">history</span> <span word="of">of</span> <span word="human">human</span> <span word="space">space</span>.</p><p>两颗卫星中，一颗是美国1997年发射的商用卫星，另一颗是俄罗斯1993年发射的卫星，后一颗卫星已经报废。美宇航局发言人说，两颗卫星相撞产生的大量碎片散落到太空中，这对国际空间站可能会产生轻微影响。</p>
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