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QUESTION

Many astronomers have spent their entire career attempting to definitively answer the question quot;Are we alone?

Many astronomers have spent their entire career attempting to definitively answer the question "Are we alone?". To date, we have found no other life forms. Discuss the type of efforts made to date to answer this question and the results of those efforts. Within our solar system, what are the best candidates for harboring life? Aside from the scientific evidence, what are 

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