Men have been interested in the stars ever since they first
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Men have been interested in the stars ever since they first looked up into the sky.
some of these stars may have their own planets.if that is so ,we can know that life may exist on e of them.the problem is that the nearest star is four light years away.In other words,light from it has been travelling for four years before it finally reaches us.Maybe nobody from earth will ever visit that star because it will take a rocket a hundred thousand years to reach it .
some of these stars may have their own planets.if that is so ,we can know that life may exist on e of them.the problem is that the nearest star is four light years away.In other words,light from it has been travelling for four years before it finally reaches us.Maybe nobody from earth will ever visit that star because it will take a rocket a hundred thousand years to reach it .
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.不过问题是离我们最近的恒星也有4光年的距离,换种说法就是光需要花4年的时间才能到达我们这边,或许地球上不会有人会到达那个恒星的,因为坐火箭过去也要花上10万年的时间
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.不过问题是离我们最近的恒星也有4光年的距离,换种说法就是光需要花4年的时间才能到达我们这边,或许地球上不会有人会到达那个恒星的,因为坐火箭过去也要花上10万年的时间
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