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For questions about any large astronomical bodies classified as planets, and their effects on their systems.

7 votes

If somehow Mars suddenly had our exact atmosphere, could there be lots of life in a few mill...

Short answer: No. Long answer: We have two scenarios to consider. Four billion years ago Mars had Earth-like conditions and water in its liquid form, but we are still unsure if there was life, even i …
makingthematrix's user avatar
0 votes

Is a dayless, moonlit, icy world possible?

Make it a planet with a constant eclipse. It's not possible in a natural way (at least not one I can think of) which means that the planet is some sort of a terraforming experiment gone terribly wrong …
makingthematrix's user avatar