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Q&A How close to each other can Earth-mass planets plausibly form from the protoplanetary disk?

We occasionally get questions and answers that discuss how close to each other planets can be and still meet some criteria. For example, this answer to the question ''Habitable'' planet close to a ...

3 answers  ·  posted 5y ago by Canina‭  ·  last activity 5y ago by Canina‭

Question planets solar-system