The Sun makes up about 99.86% of the total mass of the entire solar system.
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There are rogue planets drifting through space with no star at all.
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The Voyager 1 spacecraft is the farthest human-made object from Earth and still communicates with us.
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Mercury has extreme temperature differences.
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There are rogue planets drifting through space with no star at all.
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The Earth's rotation speed varies slightly over time.
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