绚丽奇景：神秘北极光光临美国
<p><span word="Freak">Freak</span> <span word="solar">solar</span> <span word="activity">activity</span> <span word="creates">creates</span> <span word="incredible">incredible</span> <span word="Northern">Northern</span> <span word="Lights">Lights</span> <span word="which">which</span> <span word="are">are</span> <span word="seen">seen</span> <span word="as">as</span> <span word="far">far</span> <span word="south">south</span> <span word="as">as</span> <span word="Arkansas">Arkansas</span>.</p><p>反常的太阳活动使得美国远至阿肯色州的人们看到惊人的北极光壮观景象。 <span word="It">It</span>'<span word="s">s</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>'<span word="s">s</span> <span word="most">most</span> <span word="famous">famous</span> <span word="and">and</span> <span word="spectacular">spectacular</span> <span word="solar">solar</span> <span word="phenomena">phenomena</span>, <span word="but">but</span> <span word="those">those</span> <span word="hoping">hoping</span> <span word="to">to</span> <span word="experience">experience</span> <span word="the">the</span> <span word="Northern">Northern</span> <span word="Lights">Lights</span> <span word="usually">usually</span> <span word="have">have</span> <span word="to">to</span> <span word="travel">travel</span> <span word="to">to</span> <span word="remotest">remotest</span> <span word="Norway">Norway</span> <span word="to">to</span> <span word="witness">witness</span> <span word="their">their</span> <span word="beauty">beauty</span>.</p><p>北极光是世界上最著名也是最绚烂的太阳活动现象之一，想要亲眼见证北极光的美丽，人们通常需要去到最遥远的挪威。</p><p><span word="But">But</span> <span word="freak">freak</span> <span word="solar">solar</span> <span word="activity">activity</span> <span word="yesterday">yesterday</span> <span word="saw">saw</span> <span word="the">the</span> <span word="stunning">stunning</span> <span word="auroral">auroral</span> <span word="display">display</span> <span word="stretch">stretch</span> <span word="much">much</span> <span word="further">further</span> <span word="than">than</span> <span word="usual">usual</span>, <span word="as">as</span> <span word="it">it</span> <span word="was">was</span> <span word="spotted">spotted</span> <span word="by">by</span> <span word="stunned">stunned</span> <span word="stargazers">stargazers</span> <span word="across">across</span> <span word="half">half</span> <span word="of">of</span> <span word="northern">northern</span> <span word="America">America</span>.</p><p>但是昨天反常的太阳活动造福了北美人民：超级绚丽的北极光此次的延伸范围广得多，使得半个美国的天文爱好者大饱眼福，亲眼见证了北极光。</p><p><span word="The">The</span> <span word="Northern">Northern</span> <span word="Lights">Lights</span>, <span word="also">also</span> <span word="known">known</span> <span word="as">as</span> <span word="aurora">aurora</span> <span word="borealis">borealis</span>, <span word="are">are</span> <span word="created">created</span> <span word="by">by</span> <span word="the">the</span> <span word="Sun">Sun</span>'<span word="s">s</span> <span word="atmosphere">atmosphere</span>, <span word="which">which</span> <span word="blasts">blasts</span> <span word="particles">particles</span> <span word="into">into</span> <span word="the">the</span> <span word="protective">protective</span> <span word="magnetic">magnetic</span> <span word="field">field</span> <span word="surrounding">surrounding</span> <span word="the">the</span> <span word="Earth">Earth</span>.</p><p>北极光来自太阳大气层，是太阳的激烈活动爆发出粒子进入了地球的保护磁场而出现的自然现象。</p><p><span word="Electrically">Electrically</span>-<span word="charged">charged</span> <span word="particles">particles</span> <span word="are">are</span> <span word="thrown">thrown</span> <span word="towards">towards</span> <span word="the">the</span> <span word="Earth">Earth</span> <span word="and">and</span> <span word="carried">carried</span> <span word="on">on</span> <span word="the">the</span> <span word="solar">solar</span> <span word="wind">wind</span> <span word="towards">towards</span> <span word="the">the</span> <span word="upper">upper</span> <span word="part">part</span> <span word="of">of</span> <span word="our">our</span> <span word="planet">planet</span>'<span word="s">s</span> <span word="atmosphere">atmosphere</span>.</p><p>这些带电粒子通过太阳风高速进入地球的高层大气中。</p>
页:
[1]