Jupiter is bigger than all the other planets combined.
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It 'snows' metal on Venus.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
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MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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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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