Jupiter's moon Ganymede, is larger than the planet Mercury!
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It 'snows' metal on Venus.
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Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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Jupiter is bigger than all the other planets combined.
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Some asteroids have other asteroids orbiting them.
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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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