difference between a planet and a moon

February 24, 2009 10:48am CST
a planet is datk body orbiting a star. all the planets in the solar system reflect light from the sun. a moon also shines by reflection, but it revolves ariund a planet. of hte nine planets, only mercury and venus have no known satellites. spacecraft have helped to discovewr 16 satellites around jupiter. saturn has the largest satellite in ths solar system, titan.
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