Questions for ‘Should we call out to space aliens?’
![860_main_seti_I_questions.png](https://www.snexplores.org/wp-content/uploads/2019/11/860_main_seti_I_questions.png)
Earth is the only planet known in the universe to harbor life. But some scientists think we should start broadcasting a message, welcoming any other life forms that may be out there.
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