阿联酋这个月即将发射阿拉伯世界首个登陆火星计划
<p><span word="The">The</span> <span word="first">first</span> <span word="of">of</span> <span word="three">three</span> <span word="international">international</span> <span word="missions">missions</span> <span word="to">to</span> <span word="Mars">Mars</span> <span word="gets">gets</span> <span word="underway">underway</span> <span word="Tuesday">Tuesday</span> <span word="when">when</span> <span word="a">a</span> <span word="Japanese">Japanese</span> <span word="H">H</span>-2<span word="A">A</span> <span word="rocket">rocket</span> <span word="boosts">boosts</span> <span word="a">a</span> <span word="United">United</span> <span word="Arab">Arab</span> <span word="Emirates">Emirates</span> <span word="spacecraft">spacecraft</span> <span word="known">known</span> <span word="as">as</span> "<span word="Hope">Hope</span>" <span word="into">into</span> <span word="space">space</span> <span word="for">for</span> <span word="a">a</span> <span word="seven">seven</span>-<span word="month">month</span> <span word="voyage">voyage</span> <span word="to">to</span> <span word="the">the</span> <span word="red">red</span> <span word="planet">planet</span>. <span word="It">It</span> <span word="will">will</span> <span word="be">be</span> <span word="the">the</span> <span word="first">first</span> <span word="interplanetary">interplanetary</span> <span word="mission">mission</span> <span word="ever">ever</span> <span word="attempted">attempted</span> <span word="by">by</span> <span word="an">an</span> <span word="Arab">Arab</span> <span word="nation">nation</span>.</p><p>三个登陆火星的国际任务中的首个任务于周二准备就绪，由日本的<span word="H">H</span>-2<span word="A">A</span>火箭搭载阿联酋的“希望号”宇宙飞船进入太空，开始为期七个月的通往这颗红色星球的航行。这将是阿联酋国家第一个星际任务。</p><p><span word="A">A</span> <span word="little">little</span> <span word="more">more</span> <span word="than">than</span> <span word="a">a</span> <span word="week">week</span> <span word="later">later</span>, <span word="China">China</span> <span word="plans">plans</span> <span word="to">to</span> <span word="launch">launch</span> <span word="its">its</span> <span word="Tianwen">Tianwen</span> 1 <span word="mission">mission</span>, <span word="sending">sending</span> <span word="its">its</span> <span word="first">first</span> <span word="orbiter">orbiter</span> <span word="and">and</span> <span word="a">a</span> <span word="surface">surface</span> <span word="rover">rover</span> <span word="to">to</span> <span word="Mars">Mars</span> <span word="while">while</span> <span word="NASA">NASA</span> <span word="presses">presses</span> <span word="ahead">ahead</span> <span word="with">with</span> <span word="launch">launch</span> <span word="of">of</span> <span word="the">the</span> <span word="agency">agency</span>'<span word="s">s</span> $2.4 <span word="billion">billion</span> <span word="Perseverance">Perseverance</span> <span word="Mars">Mars</span> <span word="rover">rover</span>, <span word="equipped">equipped</span> <span word="with">with</span> <span word="a">a</span> <span word="small">small</span> <span word="drone">drone</span>-<span word="like">like</span> <span word="helicopter">helicopter</span>, <span word="on">on</span> <span word="July">July</span> 30. <span word="All">All</span> <span word="three">three</span> <span word="will">will</span> <span word="reach">reach</span> <span word="their">their</span> <span word="target">target</span> <span word="in">in</span> 2021.</p><p>一个多星期后，中国计划执行“天文一号”任务，向火星发射第一个轨道飞行器和一个表面探测器。此前在7月30日，美国航空航天局发射了价值24亿美元的“毅力号”火星探测器，配备一个小型无人机直升机。这三个任务将于2021年达到指定地点。</p><p><span word="The">The</span> <span word="three">three</span> <span word="missions">missions</span> <span word="are">are</span> <span word="taking">taking</span> <span word="advantage">advantage</span> <span word="of">of</span> <span word="a">a</span> <span word="planetary">planetary</span> <span word="launch">launch</span> <span word="window">window</span> <span word="that">that</span> <span word="only">only</span> <span word="comes">comes</span> <span word="around">around</span> <span word="once">once</span> <span word="every">every</span> 26 <span word="months">months</span> <span word="when">when</span> <span word="Earth">Earth</span> <span word="and">and</span> <span word="Mars">Mars</span> <span word="are">are</span> <span word="in">in</span> <span word="favorable">favorable</span> <span word="positions">positions</span> <span word="in">in</span> <span word="their">their</span> <span word="orbits">orbits</span> <span word="around">around</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="This">This</span> <span word="year">year</span>'<span word="s">s</span> <span word="launch">launch</span> <span word="window">window</span> <span word="closes">closes</span> <span word="in">in</span> <span word="mid">mid</span> <span word="August">August</span>, <span word="and">and</span> <span word="any">any</span> <span word="spacecraft">spacecraft</span> <span word="delayed">delayed</span> <span word="past">past</span> <span word="then">then</span> <span word="will">will</span> <span word="face">face</span> <span word="two">two</span> <span word="years">years</span> <span word="of">of</span> <span word="expensive">expensive</span> <span word="storage">storage</span>.</p>
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