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

7 votes

Why do pantropy (genetically modified humans) and terraforming both exist?

It's considered illegal/unethical to terraform a world with native life Suppose an interstellar colony ship reaches a planet which is not a "shirtsleeves" habitable environment to humans, but has its …
Matthew Daly's user avatar
4 votes

Do seasons occur on a tidally-locked planet?

Another possibility is a world in a multiple star system. The planet might be tidally locked to its primary, but would also be warmer when another star approaches, and cooler if the other star moves …
Matthew Daly's user avatar