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The Sun's other solar system

In 1610, Galileo Galilei discovered the first moons belonging to another planet. Since then astronomers have added a few.
As Astronomy went to press with the July 2005 issue, the solar system scoreboard stood at 141 to 9, favor moons. Then on May 3, 2005, three astronomers announced the discovery of 12 new satellites of Saturn.

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