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Mars is closest when Jupiter and Mars are on the same side of the sun. Otherwise, if earth and Jupiter are on one side and Mars on the other, then Earth is closer. If Earth and Mars are on one side and Venus and Jupiter are on the other, than Venus is closest. When Earth, Venus, and Mars are on one side, and Mercury and and Jupiter are on the other, Mercury is closest. All four are pretty much always closer to Jupiter than Saturn ever is.

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13y ago

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