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It’s rare that shopping channels grapple with complex problems in astronomy – but miracles do happen.  Here’s the contributors to QVC discussing whether the moon is a planet.  An important consideration is apparently that “things live on it”. I’m posting this for your amusement, but you could make a serious discussion out of it.  After all, what does it mean to be a planet?  The word comes from the Ancient Greek meaning wanderer, because astronomers spotted that some heavenly