The plans to build a Martian mega city you’d actually want to travel 300 million km to live in

The plans to build a Martian mega city you’d actually want to travel 300 million km to live in
With more missions reaching the Red Planet, a human landing glints on the horizon. But what could the first permanent Mars metropolis look like? There …

* This article was originally published here At Our Flipboard Curations Visit Al Cannistra Flipboard Curations

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