题目内容：

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 .

优质解答

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...