The Moon is unique in the solar system in its large relative size compared with the [[Earth]]. The Moon appears from the Earth to be the same size as the [[sun]], in perfect artistic symmetry, unlike any known other planet-moon system. Moreover, unlike most planets in the [[solar system]], [[Earth]] has only one moon. And the Moon has one more remarkable artistic attribute: it rotates and revolves in a way such that only one side is ever visible to the Earth. To those on Earth the Moon appears as a pale disc which goes through phases in which greater or lesser amounts of the side lit by the sun are visible from Earth. | The Moon is unique in the solar system in its large relative size compared with the [[Earth]]. The Moon appears from the Earth to be the same size as the [[sun]], in perfect artistic symmetry, unlike any known other planet-moon system. Moreover, unlike most planets in the [[solar system]], [[Earth]] has only one moon. And the Moon has one more remarkable artistic attribute: it rotates and revolves in a way such that only one side is ever visible to the Earth. To those on Earth the Moon appears as a pale disc which goes through phases in which greater or lesser amounts of the side lit by the sun are visible from Earth. |