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Q&A How much play is there in building bigger-than-Earth planets that support humans?

Are there models, problems, and or engines for building life-sustaining worlds? I believe that my approach is backwards. I have written a lot on my world and have been slowly working at making th...

2 answers  ·  posted 9y ago by Micheal Eldridge‭  ·  last activity 5y ago by Micheal Eldridge‭

Question planets gravity