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Any guess that when can mankind come to know a similar solar system like ours?how many of you vote for some similar creatures out there in the universe.or else some kind of living thing at least?I often thing that going to search for any living thing or to resolve secret of universe is similar to attempting to resolving earth secret by ants.what do you say.any way iam very eager to shake hand with an extra terestrial in my life time i.e.end of this century.