国内英语资讯:Chinese satellite detects mysterious signals in search for dark matter
<p><span word="BEIJING">BEIJING</span>, <span word="Nov">Nov</span>. 30-- <span word="China">China</span>'<span word="s">s</span> <span word="Dark">Dark</span> <span word="Matter">Matter</span> <span word="Particle">Particle</span> <span word="Explorer">Explorer</span> (<span word="DAMPE">DAMPE</span>) <span word="has">has</span> <span word="detected">detected</span> <span word="unexpected">unexpected</span> <span word="and">and</span> <span word="mysterious">mysterious</span> <span word="signals">signals</span> <span word="in">in</span> <span word="its">its</span> <span word="measurement">measurement</span> <span word="of">of</span> <span word="high">high</span>-<span word="energy">energy</span> <span word="cosmic">cosmic</span> <span word="rays">rays</span>, <span word="which">which</span> <span word="might">might</span> <span word="bring">bring</span> <span word="scientists">scientists</span> <span word="a">a</span> <span word="step">step</span> <span word="closer">closer</span> <span word="to">to</span> <span word="shedding">shedding</span> <span word="light">light</span> <span word="on">on</span> <span word="invisible">invisible</span> <span word="dark">dark</span> <span word="matter">matter</span>.</p><p><span word="The">The</span> <span word="satellite">satellite</span>, <span word="also">also</span> <span word="called">called</span> <span word="Wukong">Wukong</span>, <span word="or">or</span> <span word="Monkey">Monkey</span> <span word="King">King</span>, <span word="has">has</span> <span word="measured">measured</span> <span word="more">more</span> <span word="than">than</span> 3.5 <span word="billion">billion</span> <span word="cosmic">cosmic</span> <span word="ray">ray</span> <span word="particles">particles</span> <span word="with">with</span> <span word="the">the</span> <span word="highest">highest</span> <span word="energy">energy</span> <span word="up">up</span> <span word="to">to</span> 100 <span word="tera">tera</span>-<span word="electron">electron</span>-<span word="volts">volts</span> (<span word="TeV">TeV</span> <span word="for">for</span> <span word="short">short</span>, <span word="corresponding">corresponding</span> <span word="to">to</span> 1 <span word="trillion">trillion</span> <span word="times">times</span> <span word="the">the</span> <span word="energy">energy</span> <span word="of">of</span> <span word="visible">visible</span> <span word="light">light</span>), <span word="including">including</span> 20 <span word="million">million</span> <span word="electrons">electrons</span> <span word="and">and</span> <span word="positrons">positrons</span>, <span word="with">with</span> <span word="uNPRecedentedly">uNPRecedentedly</span> <span word="high">high</span> <span word="energy">energy</span> <span word="resolution">resolution</span>.</p><p>"<span word="DAMPE">DAMPE</span> <span word="has">has</span> <span word="opened">opened</span> <span word="a">a</span> <span word="new">new</span> <span word="window">window</span> <span word="for">for</span> <span word="observing">observing</span> <span word="the">the</span> <span word="high">high</span>-<span word="energy">energy</span> <span word="universe">universe</span>, <span word="unveiling">unveiling</span> <span word="new">new</span> <span word="physical">physical</span> <span word="phenomena">phenomena</span> <span word="beyond">beyond</span> <span word="our">our</span> <span word="current">current</span> <span word="understanding">understanding</span>," <span word="said">said</span> <span word="Chang">Chang</span> <span word="Jin">Jin</span>, <span word="chief">chief</span> <span word="scientist">scientist</span> <span word="of">of</span> <span word="DAMPE">DAMPE</span> <span word="and">and</span> <span word="vice">vice</span> <span word="director">director</span> <span word="of">of</span> <span word="the">the</span> <span word="Purple">Purple</span> <span word="Mountain">Mountain</span> <span word="Observatory">Observatory</span> <span word="of">of</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="Academy">Academy</span> <span word="of">of</span> <span word="Sciences">Sciences</span> (<span word="CAS">CAS</span>).</p><p><span word="The">The</span> <span word="initial">initial</span> <span word="detection">detection</span> <span word="results">results</span> <span word="were">were</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="latest">latest</span> <span word="issue">issue</span> <span word="of">of</span> <span word="the">the</span> <span word="academic">academic</span> <span word="journal">journal</span>, <span word="Nature">Nature</span>.</p><p>"<span word="This">This</span> <span word="is">is</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span> <span word="a">a</span> <span word="space">space</span> <span word="experiment">experiment</span> <span word="has">has</span> <span word="reported">reported</span> <span word="a">a</span> <span word="detailed">detailed</span> <span word="and">and</span> <span word="precise">precise</span> <span word="electron">electron</span> <span word="and">and</span> <span word="positron">positron</span> <span word="spectrum">spectrum</span> <span word="up">up</span> <span word="to">to</span> <span word="about">about</span> 5 <span word="TeV">TeV</span>. <span word="In">In</span> <span word="this">this</span> <span word="energy">energy</span> <span word="range">range</span>, <span word="we">we</span> <span word="found">found</span> <span word="some">some</span> <span word="unexpected">unexpected</span> <span word="and">and</span> <span word="interesting">interesting</span> <span word="features">features</span>. <span word="We">We</span> <span word="have">have</span> <span word="detected">detected</span> <span word="a">a</span> <span word="spectral">spectral</span> <span word="break">break</span> <span word="at">at</span> 0.9 <span word="TeV">TeV</span> <span word="and">and</span> <span word="a">a</span> <span word="possible">possible</span> <span word="spike">spike</span> <span word="at">at</span> 1.4 <span word="TeV">TeV</span>," <span word="said">said</span> <span word="Chang">Chang</span>.</p><p><span word="Precise">Precise</span> <span word="measurement">measurement</span> <span word="of">of</span> <span word="cosmic">cosmic</span> <span word="rays">rays</span>, <span word="especially">especially</span> <span word="at">at</span> <span word="the">the</span> <span word="very">very</span> <span word="high">high</span> <span word="energy">energy</span> <span word="range">range</span>, <span word="is">is</span> <span word="important">important</span> <span word="for">for</span> <span word="scientists">scientists</span> <span word="to">to</span> <span word="look">look</span> <span word="for">for</span> <span word="traces">traces</span> <span word="of">of</span> <span word="dark">dark</span> <span word="matter">matter</span> <span word="annihilation">annihilation</span> <span word="or">or</span> <span word="decay">decay</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="to">to</span> <span word="understand">understand</span> <span word="the">the</span> <span word="most">most</span> <span word="energetic">energetic</span> <span word="astrophysical">astrophysical</span> <span word="phenomena">phenomena</span> <span word="in">in</span> <span word="the">the</span> <span word="universe">universe</span>, <span word="such">such</span> <span word="as">as</span> <span word="pulsars">pulsars</span>, <span word="active">active</span> <span word="galaxy">galaxy</span> <span word="nuclei">nuclei</span> <span word="and">and</span> <span word="supernova">supernova</span> <span word="explosions">explosions</span>. "<span word="Our">Our</span> <span word="data">data</span> <span word="may">may</span> <span word="inspire">inspire</span> <span word="some">some</span> <span word="new">new</span> <span word="ideas">ideas</span> <span word="in">in</span> <span word="particle">particle</span> <span word="physics">physics</span> <span word="and">and</span> <span word="astrophysics">astrophysics</span>," <span word="said">said</span> <span word="Chang">Chang</span>.</p>
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