Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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Jupiter's moon Ganymede, is larger than the planet Mercury!
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There are two golf balls sitting on the moon.
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41% of the moon is not visible from earth at any time.
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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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Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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