美国东部时间2月18日,美国“毅力”号火星车在火星成功着陆,将寻找火星上可能存在过的生命迹象。此次登陆是为年后人类探索火星做准备。
MembersofNASA’sPerseveranceroverteamreactinmissioncontrolafterreceivingconfirmationthespacecraftsuccessfullytoucheddownonMars,atNASAsJetPropulsionLaboratoryinPasadena,California,USFebruary18,.
NASAhasunveiledthefirstpicturesfromitsfifthMarsrover,Perseverance,afterasuccessfullandingontheredplanetsJezerocrateratapproximately3:55pmThursday.
“毅力”号火星车于本周四(2月18日)下午3点55分左右在火星的耶泽罗陨石坑成功着陆后,美国宇航局发布了第一批由其传回的照片。“毅力”号是美国宇航局的第五辆火星巡游车。
ThislandingisoneofthosepivotalmomentsforNASA,theUnitedStates,andspaceexplorationglobally–whenweknowweareonthecuspofdiscoveryandsharpeningourpencils,sotospeak,torewritethetextbooks,actingNASAAdministratorSteveJurczyksaidinapressrelease.TheMarsPerseverancemissionembodiesournation’sspiritofperseveringeveninthemostchallengingofsituations,inspiring,andadvancingscienceandexploration.
美国宇航局代理局长史蒂夫·尤尔奇克在一份新闻发布稿中称:“此次着陆是美国宇航局、美利坚合众国和全球太空探索的关键时刻之一。我们正处于发现和磨练的时期,而这次着陆改写了教科书。火星“毅力”号任务代表了美国在最具挑战性的形势下坚忍不拔的精神,启发和推动了科学与探索。”
onthecusp:介于两个状态之间;将要进入特定状态
Perseverance,themosttechnologicallyadvancedrobotNASAhassenttodate,traveledmillionmilestoreachMarsoverthecourseofmorethansixmonthsafterlaunchingonaUnitedLaunchAllianceAtlasVrocketfromCapeCanaveralSpaceStationonJuly30.ItwillremainonMarsfornearlytwoyears,searchingforsignsofancientlifeandexploringtheplanetssurface.
“毅力”号是美国宇航局迄今为止发射的技术最先进的遥控设备。去年7月30日从卡纳维拉尔角空间站搭载联合发射联盟的阿特拉斯5号火箭发射升空后,“毅力”号在6个多月的时间里飞行了2.93亿英里(4.7亿千米)才到达了火星。“毅力”号将在火星上停留近两年,寻找远古生命迹象,探索火星表面。
ThemissionwillhelppreparetheagencyforfuturehumanexplorationonMarsinthes.
该任务将有助于美国宇航局为年后人类探索火星做好准备。
NASAsPerseveranceMarsrover,thebiggest,heaviest,mostadvancedvehiclesenttotheRedPlanetbytheNationalAeronauticsandSpaceAdministration(NASA),isseenonMarsinanundatedillustrationprovidedbyJetPropulsionLaboratoryinPasadena,California.NASA/JPL-Caltech/HandoutviaREUTERS
The$2.7billionrover,builtinNASAsJetPropulsionLaboratoryinPasadena,Calif.,isabout10feetlong,9feetwide,sevenfeettallandabout2,pounds,roughlypoundsheavierthanitspredecessor,Curiosity.
这个耗资27亿美元(约合人民币亿元)的火星车是在美国宇航局位于加州帕萨迪纳市的喷气推进实验室制造的,车体长10英尺(约3米),宽9英尺,高7英尺,重2磅(约千克),比它的前任“好奇”号火星车大约重磅。
PerserveranceisdesignedtodriveanaverageoffeetperMartiandayandfeaturessevenscientificinstruments,aroboticarmthatreachesaboutsevenfeetlong,arockdrill.Itisnuclearpowered,usingaplutoniumgeneratorprovidedbytheUSDepartmentofEnergy.
按照性能要求,“毅力”号平均每个火星日可以行驶英尺,包含7个科学设备、一个能伸到7英尺长的机器手臂,还有一个凿岩机。这个核动力火星车使用的是美国能源部提供的钚发电机。
Thescientificinstrumentsontheroverincludeacameradesignedtotakehigh-definitionvideo,panoramiccolorand3DimagesoftheMartiansurfaceandfeaturesintheatmospherewithazoomlenstomagnifydistanttargets,agroupofsensorstomeasureweatherandmonitordustontheplanetssurface,asystemthatwillbeusedtoproduceoxygenfromtheMartiancarbon-dioxideatmosphere,anx-rayandcamerasystemthatcanmeasurethechemicalmakeupofrocksandanalyzefeaturesassmallasagrainofsalt,aground-penetratingradarsystemtoanalyzegeologicfeaturesunderMarssurface,agroupofcameras,spectrometers,andalasertosearchfororganicsandmineralsaswellastakecloseupimagesofrockgrainsandsurfacetextures,andacameratoidentifythechemical