More than 20 million meteoroids enter Earth's atmosphere every day.
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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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Some asteroids have other asteroids orbiting them.
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Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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It 'snows' metal on Venus.
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Earth is the only planet in our solar system that's not named after a god or goddess.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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