"As Earth’s closest planetary neighbor at an average of 140 million miles away, Mars has stirred human imagination for centuries, from speculations it hosts alien species to whether it could ever become humanity’s refuge from a dying Earth."
https://discover.join1440.com/topics/mars?pinned-resource=humans-to-mars-nasa&utm_source=join1440&utm_medium=email&utm_campaign=hub-general
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