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Q&A A moon that becomes or appears blue from the surface of its host planet once every ten years on the same date?

This is really just a curiosity question: I wrote a fantasy novel in which the moon appears blue once every ten years on roughly the same date without fail. If anyone asked me why the moon of my wo...

4 answers  ·  posted 5y ago by P. M. B.‭  ·  last activity 5y ago by P. M. B.‭

Question moons