Living on Mercury Would Be Hard https://www.space.com/26894-living-on... “The planet closest to the sun has no atmosphere, oceans or visible signs of life. While mostly very hot on its day side, the poles are cold enough to support megatons of water ice.”
What's the maximum gravity we could survive? http://www.astronomy.com/news/2018/09... “If we wish to colonize another world, finding a planet with a gravitational field that humans can survive and thrive under will be crucial. If its gravity is too strong our blood will be pulled down into our legs, our bones might break, and we could even be pinned helplessly to the ground.” ____________________
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