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Q&A Is it possible to have a sun with visible phases or cycles?

Is there a scientifically plausible way for a habitable world to have a sun that undergoes a regular, dramatic, and easily observable change? One comparable in visual impact to an event like a sola...

11 answers  ·  posted 7y ago by Random‭  ·  last activity 7y ago by Random‭

Question astronomy orbital-mechanics sunlight light