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  Menhavebeeninterestedinthestarseversincetheyfirstlookedupintothesky.someofthesestarsmayhavetheirownplanets.ifthatisso,wecanknowthatlifemayexistoneofthem.theproblemisthattheneareststarisfourlightyearsawa

  Menhavebeeninterestedinthestarseversincetheyfirstlookedupintothesky.

  someofthesestarsmayhavetheirownplanets.ifthatisso,wecanknowthatlifemayexistoneofthem.theproblemisthattheneareststarisfourlightyearsaway.Inotherwords,lightfromithasbeentravellingforfouryearsbeforeitfinallyreachesus.Maybenobodyfromearthwillevervisitthatstarbecauseitwilltakearocketahundredthousandyearstoreachit.

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2020-02-2023:53
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苏彦昆

  给楼主翻译一下吧,我想看汉语的话应该能明白是什么意思:人类从他们仰望星空开始就一直对星星产生了浓厚的兴趣,这其中的一些星星也许有这自己的星系,如果这是真的话,那么我们可以推测他们之中应该有生命存在.不过问...

2020-02-20 23:54:21
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