外星移民不是梦 超级地球被确认存在
<p><span word="Astronomers">Astronomers</span> <span word="believe">believe</span> <span word="mysterious">mysterious</span> <span word="signals">signals</span> - <span word="previously">previously</span> <span word="dismissed">dismissed</span> <span word="as">as</span> <span word="stellar">stellar</span> <span word="bursts">bursts</span> - <span word="are">are</span> <span word="coming">coming</span> <span word="from">from</span> <span word="an">an</span> <span word="Earth">Earth</span>-<span word="like">like</span> <span word="planet">planet</span>.</p><p>早前被认为是由附近星体出现磁场爆炸造成的光的<span word="Gliese">Gliese</span> 581<span word="d">d</span>近日被天文学家确认存在。</p><p><span word="The">The</span> <span word="Gliese">Gliese</span> 581<span word="d">d</span> <span word="planet">planet</span> <span word="has">has</span> <span word="conditions">conditions</span> <span word="that">that</span> <span word="could">could</span> <span word="support">support</span> <span word="life">life</span>, <span word="and">and</span> <span word="is">is</span> <span word="likely">likely</span> <span word="to">to</span> <span word="be">be</span> <span word="a">a</span> <span word="rocky">rocky</span> <span word="world">world</span>, <span word="twice">twice</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="Earth">Earth</span>.</p><p><span word="Gliese">Gliese</span> 581<span word="d">d</span>行星有着适合人类居住的环境，可能和地球一样存在岩石，体积是地球的两倍。</p><p><span word="Signals">Signals</span> <span word="from">from</span> <span word="the">the</span> <span word="planet">planet</span> <span word="were">were</span> <span word="initially">initially</span> <span word="discovered">discovered</span> <span word="in">in</span> 2010, <span word="but">but</span> <span word="last">last</span> <span word="year">year</span> <span word="dismissed">dismissed</span> <span word="as">as</span> <span word="noise">noise</span> <span word="from">from</span> <span word="distant">distant</span> <span word="stars">stars</span>.</p><p>2010年天文学家第一次发现来自<span word="Gliese">Gliese</span> 581<span word="d">d</span>的信号，但是去年这些信号又被科学家认为是其他遥远星球发出的噪音。</p><p><span word="Now">Now</span>, <span word="a">a</span> <span word="further">further</span> <span word="study">study</span> <span word="claims">claims</span> <span word="that">that</span> <span word="the">the</span> 2017 <span word="research">research</span> <span word="was">was</span> <span word="based">based</span> <span word="on">on</span> '<span word="inadequate">inadequate</span> <span word="analyses">analyses</span> <span word="of">of</span> <span word="the">the</span> <span word="data">data</span>' <span word="and">and</span> <span word="that">that</span> <span word="Gliese">Gliese</span> 581<span word="d">d</span> <span word="does">does</span> <span word="exist">exist</span>.</p><p>而最新研究表明，2017年的数据分析方法不适当，所以<span word="Gliese">Gliese</span> 581<span word="d">d</span>行星可能确实存在。</p><p><span word="Last">Last</span> <span word="year">year</span>, <span word="Pennsylvania">Pennsylvania</span> <span word="State">State</span> <span word="University">University</span> <span word="researchers">researchers</span> <span word="said">said</span> <span word="Gliese">Gliese</span> 581<span word="d">d</span> - <span word="and">and</span> <span word="its">its</span> <span word="companion">companion</span> <span word="Gliese">Gliese</span> 581<span word="g">g</span> - <span word="were">were</span> <span word="simply">simply</span> <span word="a">a</span> <span word="trick">trick</span> <span word="of">of</span> <span word="the">the</span> <span word="light">light</span> <span word="caused">caused</span> <span word="by">by</span> <span word="magnetic">magnetic</span> <span word="bursts">bursts</span> <span word="from">from</span> <span word="a">a</span> <span word="local">local</span> <span word="star">star</span> 22 <span word="light">light</span>-<span word="years">years</span> <span word="away">away</span>.</p><p>去年，美国宾夕法尼亚州州立大学的研究人员曾指出<span word="Gliese">Gliese</span> 581<span word="d">d</span>和581<span word="g">g</span>发出的信号不过是距离地球约22光年的一颗星体出现磁场爆发继而造成的光把戏。</p>
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